Got my Brand new APS SR55 Turbo PICS [Archive]

davidm_sh

07-24-2004, 08:55 PM

Looks nice.. V6.. I bet that does not crack.. Tons O meat in that housing. Wonder how it will perform. Never had any real stellar numbers from any of the SR turbos. Anyone know the AR of the Turbine housing?

C

I thought APS indciated the A/R on their website. If you scroll down on the attached link it indicates a 0.60 A/R for the Compressor and a 0.82 A/R for the Exhaust.

http://www.aps-wrx.com/wrx/aps_turbo.htm

Sounds pretty "roomy" to me in the hot section considering a 7cm^2 mitsu exhaust housing is supposed to be in the 0.5x A/R range? Green uses this exhaust housing right?

singsing

07-25-2004, 07:00 AM

aps tell me that the sr55 will be using the 17.5 housing only

wgknestrick

07-25-2004, 10:26 AM

aps tell me that the sr55 will be using the 17.5 housing only

Well then the only difference is that this uses the next larger CHRA, right? I would assume that everything else is the same from the SR50 to the 55. I think that the 50 uses the Garrett -11 CHRA from the GT30s and this would use the -12.

Has anyone ever recieved a 20mm housing from APS? It would be interesting to see pics to see how much larger it is.

zacek

07-26-2004, 05:48 AM

I wanna see lag results compared to the SR50 and DR55!!! :devil:

1m4dSTI

07-26-2004, 12:47 PM

totoherbs

07-26-2004, 12:57 PM

:lol:

Looks as purty as all of APS' parts, now lets see what it does. For $2200 it better be ****ing mind blowing.

cronic

07-26-2004, 01:08 PM

why such a big turbo ..anything over 20 psi on stock internals is gonna be trouble..unless your planning on yankin that motor and doing some internals..i have a sr50 which is also big ..but am planning on pullin the motor in about a month...it looks good though!..

Is that what ESX told you? Sounds like they want to sell you a built motor :lol: That or were afraid to tune your car over 20psi.. :rolleyes:

totoherbs

07-26-2004, 02:08 PM

Is that what ESX told you? Sounds like they want to sell you a built motor :lol: That or were afraid to tune your car over 20psi.. :rolleyes:
Im the last to defend ESX and I wouldnt go to them at all, but he is running on 91 Ca pump gas... most of dont have to worry about that piss.

cronic

07-26-2004, 02:13 PM

Im the last to defend ESX and I wouldnt go to them at all, but he is running on 91 Ca pump gas... most of dont have to worry about that piss.

Gas is irrelivant, he said the stock internals can take over 20psi.. That has been proven BS time and time again.. Like i said ESX is trying to be salesmen..

totoherbs

07-26-2004, 02:43 PM

Gas is irrelivant, he said the stock internals can take over 20psi.. That has been proven BS time and time again.. Like i said ESX is trying to be salesmen..
True. I am just saying that from his point of view 20 is pushing it and maybe what esx said is that and he just got confused. We all know the ej257 can hold more, just a matter of how much more for how long now. I would not look to the esx guys for advice. Maybe thier motor builder but thats different...

1m4dSTI

07-26-2004, 03:54 PM

lol i know they want to me to a built motor...its ok cause i was planning on it anyway .. esx wasnt who said to tune it at 20psi .. the mechanic from ecutek came down from canada to tune my car along with others..20psi is what he ran it on the dyno on..i can maually control it if i want ..but right now its a everyday driver so i kinda want some reliability...

zacek

07-26-2004, 05:46 PM

Ricowrx

07-26-2004, 08:26 PM

my car is down at easy street right now, there putting the tumbler delete's, fuel injectors, and fuel rail's for me. I have to go pick up my car from them and put this bad boy on and bring it back down to them for a conservative tune on CA91 on my eccutek.

Ricowrx

07-26-2004, 11:40 PM

He is a front pic, the blade setup on the compressor look's very aggressive.
http://www.geocities.com/krazyguydave/DSC00287.JPG

Ricowrx

07-26-2004, 11:48 PM

for a picture of the turbine entry visit my siteAPS SR55 (www.geocities.com/krazyguydave)

MJU1983

07-27-2004, 01:02 AM

Hmmmmm, all these numbers being thrown around in this thread... If anyone wants to paypal me their extra income, its mikeurban@hotmail.com

heh

zacek

07-30-2004, 09:27 PM

when is the tuning taking place???? I would like to drop by...

nhluhr

07-30-2004, 09:46 PM

Ricowrx

07-31-2004, 04:58 AM

when is the tuning taking place???? I would like to drop by...

If all goes as planed tuning will be taking place Monday August 8th morning/noon time

RedBean

07-31-2004, 07:25 AM

Silly Rabbit, ECUTek is NOT a Canadian company.
I believe he is referring to this: http://forums.nasioc.com/forums/showthread.php?t=600780

bboy

07-31-2004, 09:20 PM

Ricowrx

08-01-2004, 07:33 AM

I'm very interested in the results and tuning. This will be a first as far as I know. I'm curious about spool up. What other flow mods you got? TBE? Headers?

APS claimed a whopping 124 hp gain with the DR55 at the crank in the rotated configuration, and while there was lag, the motor had upped power throughout the RPMs.

Muy rico!!!! :-)
With the sr55 I have full TBE (turboxs down pipe, turboxs catback adapter with HKS carbon/ti catback). aps up-pipe, HKS header's wrapped, perrin sti fuel rails with modded sti side feed injectors, sti tumbler deletes, dr650 front mount, turbo smart boost controller, samco inlet pipe, aps cold air intake, clutch masters stage 3 clutch with lightened fly wheel, perrin lightened pulley, ecutek reflash with dash mount ecutek controller, and a hand full of some other performance stuff. I'm just worried about spool up. -Dave

bboy

08-01-2004, 04:08 PM

I'm worried about spool too, but the Garrett BB's are supposed to be the best for their size. You've got everything to make it go, tuning will hopefully get you there.

Ricowrx

08-01-2004, 10:38 PM

I'm worried about spool too, but the Garrett BB's are supposed to be the best for their size. You've got everything to make it go, tuning will hopefully get you there.

Yeah that's what I'm hoping for a good tune, easy street right now has a ecutek tuner. I pretty sure he know's his stuff, he even said he can delete the code's that the aps tumble delete valve's will trip so i don't even have to use aps' Throttle Position/Servo couplings to trick the ecu.

yeager

08-02-2004, 10:52 AM

i just picked up the same turbo. I won't be installing it for a few weeks, so I look forward to your posts.

bboy

08-03-2004, 02:15 AM

Found these two quotes for spool up on a 2.5L with the SR50. I frankly amazed that a 2.5 L engine spools 1000 RPM earlier, but I guess that is around 25% early, same as the cylinder volume increase.

"The SR50 spools very nicely oin the 2.5L. Somewhere around 3500 RPMs. But that is also with 8.8:1 compression. On a 2.0L EJ20 they spool around 45-4800 RPMs. I would not recommend them for a 2.0L. And my shop sells them! The SR40 is more suited to the 2.0L.

The SR50 uses a 50 trim Garret wheel. I think the Exhaust wheel is a stage 3 Garrett wheel with a 15 degree clip. But don't quote me on that. APS is very sketchy about releasing complete turbo specs."

"I am using and APS SR50 turbo with a 17.5cm exhaust housing. I am seeing full boost, 14.5psi at 3600rpms. On the street boost comes on very strong and and pulls all the way to redline. The low end torque is very nice and the top end is quite nice as well."

At least its some info. Found some more stuff on the SR40 too. It's making my think APS is on to something here with our 2.5L engines, despite their lack of update to their web pages in ages. Keep us posted both of you.

yeager

08-03-2004, 09:53 AM

i spoke to a guy yesterday who has a new 2.5l block in his wrx and a shiny red sr55/800cc injectors/utec/fmic. The last 500 miles were break-in, but he says about the same as the above quotes: boost comes on strong near 3500-3600 rpms and at 14psi (break-in boost) he made 310 whp. He'll be tuning it within the next few days now that the engine is broken in, so i'm curious as to the final outcome.

I do know that after riding in an sr50 equipped sti, you sure get through those first 3 gears in a hurry.

speedracer500

08-03-2004, 06:58 PM

Ricowrx

08-04-2004, 04:42 AM

Ricowrx

08-04-2004, 04:45 AM

I just got the turbo installed, I'll post a pic later on showing it installed. Also the stock (trimed) heat shield fit's like it's on the oem turbo. -Dave

Ricowrx

08-04-2004, 05:45 AM

Here is the a pic of the sr55 turbo mounted, just have to connect the oil line, ic hose's, and blow off valve. easy street put in my perrin fuel rails with modded injectors, i'm going to take it back to them later this week to get a fuel pressure regulator installed and for the final tune monday. -Dave

http://www.geocities.com/krazyguydave/DSC00297.JPG

bboy

08-04-2004, 01:40 PM

Looks great. I'm excited for you. I like how the paint matches. ;-)

04STiguy

08-04-2004, 10:55 PM

subscribing

boogerwrx

08-05-2004, 02:09 AM

No, he's right. The stock pistons just can't take that much boost over time. I have seen some piston modelling and for sure have seen enough blown sti engines. At first everyone was blaming detonation. Well, yeah and the fact they were running over 20psi boost.

The modelling I saw, based on the materials and quality of the stock sti piston, showed a hugh difference in the way the piston looks at 1000rpms and 7000rpms. The 2.5 creates more heat and that is a big factor in these stock engines with their reliability.

Most of the blown blocks I have seen shown only minor signs of detonation. But all had broken the second ring land. The first ring land on those pistons is pretty good. Under pressure, they push down on the top ring, which is very stout. The top ring then pushes down on the 2nd ring land which is weak. It breaks. It's only a matter of time at that point.

For the guys who are making good power on them, they all probably have better radiators and oil coolers as well. It's not a true fix for the problem, but it delays the inevitable.

Ron

STIV6

08-05-2004, 02:52 AM

Ricowrx

08-05-2004, 09:12 AM

I haven't ran the car yet, so I couldn't tell you. I'm still doing some other stuff to it and don't want to run it tell I can get it tuned correctly. Also I spoke to esx and they won't be able to tune my car until the 16th. Because there ecutek tuner is going to be gone next week. -Dave

zacek

08-06-2004, 05:04 AM

Ricowrx

08-06-2004, 06:49 AM

ahh! dammit... I hate delays.... :devil:

Can't wait to personally see this, however somehow I suspect the lag will dissapoint me... although then again, if it is in the SR50 cartridge it should not be that bad.... damm... speculations and guesswork... he he....

One thing that strikes me though.... where you get all that funding...? From what you have it looks you will have invested close to $10k after tuning. :eek: Would you mind sponsoring me as well??? :D

HAHA I wish it was just 10K, ESX charged me 12 hundred just to put in the fuel rails.. nothing else. I also have about 7k invested in audio and nav. when it's all said and done (which is will never be, can't stop putting stuff on and taking stuff off) it's going to be a nice setup. also i havn't start on suspension yet and some other goodies..

Ricowrx

08-06-2004, 07:25 AM

aps just posted info on there site regarding the SR55:

"The SR55 is the choice for the performance enthusiast who wants the ultimate in engine power whilst maintaining stock turbocharger orientation. Ideally suited to heavily a modified Subaru engine of 2.2 - 2.5 L capacity. With flow capacity to produce 500 hp at 14.5 psi and 550 hp at 22 psi, this turbocharger is for the serious street/strip racer.

Compressor Turbine
A/R 0.60 0.82
Inducer 57.0 mm 60.0 mm
Exducer 76.2 mm 55.0 mm "

http://www.aps-wrx.com/wrx/aps_turbo/maps/sr55_map.gif

Ricowrx

08-06-2004, 07:26 AM

http://www.aps-wrx.com/wrx/dr_series/dr_turbos/dr55_raw_map.gif

totoherbs

08-06-2004, 10:16 AM

STIV6

08-07-2004, 03:16 AM

Guys, on paper does this new APS SR55 turbo look like it will out flow/produce more horsepower than an AVO500 turbo ??

I know nothing about those compressor maps :confused: .

Paul

zacek

08-07-2004, 03:35 AM

yah! I saw that on their site, I was really hoping to see some Dyno Graphs however... It looks like there are focusing hard on their 350Z project. I saw some of their video clips and man.... if you pay attention you can notice how fast the RPM's climb on that sucker.... Almost as fast a a bike.... yikes... :eek:

zacek

08-07-2004, 03:41 AM

In theory it should... but in practice however as other ppl have mentioned before their Turbos have failed to produce solid results. Providing the SR55 is still in the SR catridge I would suspect the top end not being close to the DR55 counterpart.

I must say though that my old 2002 WRX with an SR30/17.5 produced a very healthy 252whp on a DynoDynamics unit on a 91 octane map with only 16psi. Very impressive for a daily driver. Personally I have not been dissapointed at APS' stuff. I really believe a GREAT part of performance extraction is on the tuning.

Guys, on paper does this new APS SR55 turbo look like it will out flow/produce more horsepower than an AVO500 turbo ??

I know nothing about those compressor maps :confused: .

Paul

Scoobs2002

08-07-2004, 09:01 AM

No It's not, but many people from Montreal Canada...such as Ben were lead/key people in the development of the EcuTek Software!

...Just thought I'd point that out.

Scoobs

Silly Rabbit, ECUTek is NOT a Canadian company.

totoherbs

08-07-2004, 09:37 AM

Guys, on paper does this new APS SR55 turbo look like it will out flow/produce more horsepower than an AVO500 turbo ??

I know nothing about those compressor maps :confused: .

Paul
Ya, it does on paper... and on paper the SR50 should out flow a green at something like $600 less. But in real life it doesnt happen.

AZScoobie

08-07-2004, 06:59 PM

In theory it should... but in practice however as other ppl have mentioned before their Turbos have failed to produce solid results. Providing the SR55 is still in the SR catridge I would suspect the top end not being close to the DR55 counterpart.

I must say though that my old 2002 WRX with an SR30/17.5 produced a very healthy 252whp on a DynoDynamics unit on a 91 octane map with only 16psi. Very impressive for a daily driver. Personally I have not been dissapointed at APS' stuff. I really believe a GREAT part of performance extraction is on the tuning.

I just made 275whp on a dynodynamics at dyno4mance.com minutes ago... VF30 on pump fuel with stock motor and a tmic.

C

bboy

08-07-2004, 09:44 PM

As you know, I'm interested in the SR55 spool up. For fun, lets try to calculate what will happen on the 2.5L STI engine. If you calculate the air flow at 7.5 psi, 3500 RPM assuming a VE of 80%, the 2.5 L engine will be eating and then exhausting about 14 lbs/min of exhaust at around 1500F when it hits the turbo. Assuming a 1:1 ratio of turbo compression to exhaust flow you are pretty low in the compression map, but already at 70% compressor efficiency. With heat, the exhaust turbine should be compressing more cool air than the exhaust flow (faster, hot air). Let's be optimistic at say its 1.5:1, cold to hot, now at 3500 RPM you are compressing more like 21 lbs/min, and if better than 7 psi boost, probably more than 21 lbs (24 lbs @ 10 psi, 27 lbs @ 14.7 psi). Now we are in the 73% island of the compressor's efficiency--Zooooooom!

I'll predict you'll reach 1 Bar of boost by 3700 RPM, and start positive boost at 2900 RPM in 4th or 5th gear. That fits pretty well with the preliminary rumors. With at good tune, keeping the AFR up high (like 14.5) until 3500+ RPM to spin that turbine, I hope you do even better.

With the large exhaust side 0.82 A/R you should be able to easily hold 20 psi all the way to redline. That will be serious power. While on paper the compressor could flow up to 30 psi, I think you'll be hard pressed to get it through that little housing. Let's see how I do predicting. It's going to be a seriously fast, not laggy, 400+ whp car. I can smell the clutch now.

Tuning Factory Inc.

08-08-2004, 03:55 PM

I started to tune an SR55 last week. DId pretty well but didn't get to full boost until around 4500 RPM. I wish APS would let us know we have to adjust the wastegate. We coudn't get more than 18.7 PSI out of it. We had a torn inlet hose anyway so he has to come back anyway. Got 344 WHP at 18.7 PSI pretty easily though.

jigga

08-08-2004, 05:42 PM

Silly Rabbit, ECUTek is NOT a Canadian company.

ECUTEK isn't Canadian, but their NA distributor is Lachutte Subaru, located in Quebec, Canada.

Benoit (Ben) would be the tuner that is being referred to. I was getting my car tuned here in Toronto a few days ago, and they had to get a hold of him in California (where he is tuning cars it seems)to ask him a question, since they could not get a hold of ECUtek in England at the time.

Pavlo

08-08-2004, 05:52 PM

bboy

08-08-2004, 06:15 PM

That seems like an awefully low RPM for a GT30 to achieve 20 psi. I'm not sure who make the actuator on the SR turbos, but most of the internal WG Garrett's are running a 15 psi WG. I know that external WG can give you more control, but that seems amazing. I hope you are right, we'll all end up with GT30-based turbos.

I had fun with the calculations.

God should have some opinions on the bene's of an external WG; I believe he took that route for his Spec R kit.

Ricowrx

08-10-2004, 11:22 AM

Well I'm almost done working under the hood, just have a few more things to do like the IC pipes for the fm and some fuel stuff. and then I take her down to esx for the final tune for the new SR55. here is a shot of the engine, it needs a good washing after everything is all said and done. http://www.geocities.com/krazyguydave/DSC00302.JPG

Ricowrx

08-10-2004, 11:24 AM

here is a shot of the inside, showing the ecutek ecu data dash display, eboost and my new kenwood audio stuff, i just got the rear view camera installed i'll show some pic's of that later. http://www.geocities.com/krazyguydave/DSC00304.JPG

zacek

08-10-2004, 10:56 PM

:furious: :furious: dude, you are seriously making me Jaleous, look at all that sh%^&# you have :furious: :furious:

I'm really hoping the SR55 will provide stock boost (14.5psi) at the same rpm point as the stock VF39. The SR50 was supposed to achieve this at a way lower RPM point than the stock turbo. If it is any laggier then might as well get a green.

Does anybody know at what RPM does the FP green reaches 14.5psi at?

totoherbs

08-11-2004, 02:08 AM

Ricowrx

08-11-2004, 02:23 PM

~3100 http://forums.nasioc.com/forums/showthread.php?t=555449&highlight=green+perrin

How much more is the SR then the green?

The green is about 1,400 and the 55 is about 2,200

zacek

08-12-2004, 05:26 AM

don't forget to let us know when your tuning will take place... :)

bboy

08-12-2004, 01:57 PM

Monday the 16th he said.

engineerx

08-13-2004, 02:50 PM

APS makes pretty & pricey turbos !!
mmm... yep it does look like the DR55 .....
I'm waiting for the Hydra Nemesis ... I've had my parts just sitting in the house for more than 3 months now .... aaargh !!!

here's mine
http://forums.nasioc.com/forums/showthread.php?t=531926&highlight=dr55t

busaru25

08-15-2004, 02:39 AM

I've heard the sti engine doesn't like more than 18 pounds and will pop by 20k of usage... mine is still 1500 mi new so i just want to hear the exhaust for now...

1m4dSTI

08-15-2004, 06:18 AM

totoherbs

08-15-2004, 06:18 AM

I've heard the sti engine doesn't like more than 18 pounds and will pop by 20k of usage... mine is still 1500 mi new so i just want to hear the exhaust for now...
Well who ever you heard it from does not know what they are talking about.

1m4dSTI

08-15-2004, 06:25 AM

ive ran mine at a little 20-22 lbs for 6,000 miles and its still running like a champ..when it not broke might i add..=0)

Ricowrx

08-16-2004, 08:46 AM

ricowrx.. i saw your car on the dyno today he was getting ready to tune it ..but i left just minutes before..i was pickin up my sti..but already broke it..=0(..yours looks great!..ben said something about the diff being messed up?..your oil didnt look to healthy..haha ..looks like water out of swamp..car looks awesome though..thats all that counts..

I go and pick up my car today and take it to the dealership to see if they can fix it under warranty but I doubt it, Ben said it is drivable, but don't put it on full boost until the final tune. They can't do the final dyno tune until the problem is fixed what ever that may be. I don't under stand what's wrong with the car, it has been making that loud click noise from the rear since it was brand new, every time I did a turn or what not. I always thought it was just the aggressive nature of the sti. But I guess not. Has any one else had this problem? also fyi I always keep the dccd in auto, I've maybe locked it a couple of time for short periods. -Dave

happasaiyan

08-16-2004, 09:24 AM

Ricowrx

08-16-2004, 09:35 AM

i get grinding noises when im making slow turns...especially in reverse.

the car has been like that since day one. not sure if this is the same thing youre getting.

i also get a drivetrain humming noise at 35mph and 65mph.

Mine isn't grinding, it's a loud clicking. I guy's at easy street acting like they never heard this before, so I guess it's not the norm with the sti's. I'm interested to find out what the heck it is.

happasaiyan

08-16-2004, 10:33 AM

could be one of your CV joints going...

zacek

08-16-2004, 07:59 PM

what???? :mad:

another delay..... :furious:

grrrr! what's going on with your car? What clicking are they talking about???
Are they just trying to avoid seen your car kick too much butt? :lol:

1m4dSTI

08-16-2004, 08:15 PM

haha..doesnt it seem when you want to do something or have been waiting forever for ..something always goes wrong!..delays delays delays..

bboy

08-17-2004, 02:50 PM

Rate of clicking increases with speed of rear wheels? Is the candence that of the wheels or slower? Any variation when DCCD dial is changed? Louder on one side versus other? Changed out the rear diff fluid to something other than stock?

The suspense is killing me. I want to get the click fixed.

Ricowrx

08-18-2004, 02:40 PM

Here is a update, I went and picked up my car from easy street this Monday, Jamie showed me my rear diff fluid which looked like shrek vomit. I made an appointment right after the bad news with my local subaru dealership to get my rear diff checked. It's there right now getting checked.. I dropped it off this morning. I doubt it will be covered under warranty, if it is it will be an act of God himself. Well see what they found out, haven't heard from them yet. Due to my rear diff problem It could not go on the dyno due to safety reasons at ESX which i can't really blame them for doing this. Ben, the ecutek tuner from down from Canada just reflashed a basic map that will make my car run with bigger injectors and other mod's to make my car drive, so I won't have to trailer it every where to get it fixed. See the thing with the rear diff is that I can't understand is what went wrong, The car only has about 6k miles on it, I never drop the clutch, I rarely race it or do wot runs. It made that loud clicking binding noise the day I brought it home from the dealership and turned into my driveway. When I bought it new from the dealership it only had 11 miles on it. I wasn't too worried, because I read that the us sti drive train made all types of noises. Well I will be happy when everything is all said and done and the final tune is over. I'm hoping for some good power results, even on CA91. -Dave

yeager

08-18-2004, 03:31 PM

dave,

interesting find. My car had 1500 miles when I changed to synthetic fluids and the rear diff fluid looked like a double-shot espresso with a handful of crushed coffee beans thrown in for good measure. I was very surprised as the car had been broken in correctly and never launched. Design flaw? No room for cooling of the fluid?

This makes me curious as to what the fluid looks like now after 10K miles with Amsoil. I'm hoping a bit better than the first change.

Let us know how this all turns out.

btw: very interested in the final numbers with that sr55. ive got an unopened box with the same turbo inside. it haunts me.

1m4dSTI

08-18-2004, 03:40 PM

RICO ya i saw your diff oil..ben showed it to me..pretty nasty.thanks god i have never had problems with my diff..they thought that it was going to be the first thing to go.after i broke two rear axles..previously when i just had TBE,INTAKE,BOV i must have launched it about 20 or so hard times..maybe that explains all the parts breaking now with my new power...haha

Subaruski420

08-18-2004, 04:18 PM

wow!

bboy

08-18-2004, 05:42 PM

Ricowrx

08-18-2004, 05:58 PM

Goopy, cloudy, rear diff fluid has been the norm for the STI. Even Subie Gal, one of this forum's moderators, told me it's typical. I too change to synthetic at 1000 mi, rear fluid was a litttle dark and a little cloudy, but nothing like has been described here and elsewhere. I would not worry about it. Change it out, and I'll bet it runs better than new, mine did.

Could be just an oil change can fix it, it did sound a little better. But with my luck, the whole back axel and diff with spontaneously combust and fall off the car. :lol: I would pay out of pocket for it to get it fix, if I knew for sure it was my fault, but I babied that car.

yeager

08-18-2004, 06:53 PM

Could be just an oil change can fix it, it did sound a little better. But with my luck, the whole back axel and diff with spontaneously combust and fall off the car. :lol: I would pay out of pocket for it to get it fix, if I knew for sure it was my fault, but I babied that car.

just make sure it has some LSD additive

bboy

08-18-2004, 07:16 PM

I don't think Rico's going to need any LSD when his car finally gets tuned.
:p :p

He'll be trippin' though!

yeager

08-19-2004, 10:51 AM

:lol:

zacek

08-19-2004, 09:15 PM

from what you have described, if it turns out to be the differential, then it should be covered under warranty. With such as low mileage it must have come defective from the factory. You stated the clicking was coming from day 1 correct?

Ricowrx

08-21-2004, 05:09 AM

update.. I got the call from the dealership today. It kinda felt like I was waiting to get a call from a doctor about possibly some bad news or test results.. The service rep said that the techs took off the rear diff cover and inspected all the gears and everything looks fine, they also inspected the drive shaft, cv joints and axels. Everything looked up to snuff. It did sound a lot better after Ben at ESX changed my rear diff oil. I guess maybe that worked something out of it. Well see.. -Dave

subiedoo504

08-22-2004, 12:51 PM

damn i was really hoping to see if the sr55 turbo was worth buying or should i go green?

bboy

08-24-2004, 12:52 AM

Are you going to put it up on the dyno or are still worried about the tranny noise? Did you change the rear diff fluid to the stock stuff or something else?

Ricowrx

08-24-2004, 04:49 AM

Well it turns out it was the rear diff oil I put in it. I put the SuperLight ShockProof Red Line gear oil in it after the brake in period and I guess my rear diff didn't like that at all. After ESX changed the rear diff oil and the drive home working the new oil in all the gears, I have since not heard that noise. And the dealership changed the oil once more after they took off the rear diff cover and inspected the whole rear end, they even took me and showed my the gears while the diff was spinning and it all looked new. I went and tested it did some figure eights and did some slow tight 360's and nothing couldn't hear a thing like I did. We'll I'm pretty happy right now to know that my rear diff didn't blow out on me or anything else. I'm going to call ESX and make the next appointment with the Ecutek tuner Ben. Wish me luck on the final dyno tune. I'll post some pics later on for the dyno sheets and how everything turned out. -Dave

happasaiyan

08-24-2004, 07:52 AM

what fluid did esx use?

Ricowrx

08-24-2004, 08:55 AM

what fluid did esx use?

Not sure.

yeager

08-24-2004, 11:03 AM

looking forward to your results!

bboy

08-26-2004, 03:47 PM

While we patiently wait.....Yeager, did you ever put that Full Throttle turbo in your car?

BGPKR

08-26-2004, 04:53 PM

looking forward to your results!

Ditto

serendipity

08-26-2004, 05:15 PM

Sheesh, at this rate, I'll have my SR50 on and tuned before we get an update. :)

bboy

08-30-2004, 04:35 PM

[strugglingly] ........must have....more...info........need......fix...
..
.
.
:D

wannaberacing

08-31-2004, 12:40 AM

update?

yeager

08-31-2004, 09:54 AM

fiending for updates

zacek

08-31-2004, 09:13 PM

UPDAAAAAAAAAAATE!

(he, he).... :rolleyes:

serendipity

08-31-2004, 10:24 PM

If nothing else, I'll have my SR50 results posted by the end of the week. Finally finished the swap, and my tune appointment at TXS is thursday evening. I'll be interested to see how the SR50 compares to the 55 if we can ever see some 55 results. From what I've read, the SR50 does about the same as an FP green, and may suffer from a small exhaust housing. The SR55, to my knowledge, uses the same turbine housing, so I'm curious if there are any real gains.

whoop whoop

09-01-2004, 01:10 AM

:huh:

bboy

09-01-2004, 04:47 AM

SR55 bigger compressor impeller, 55lbs air/min vs. 50lbs/min. That will slow the shaft down at a given RPM, same spool approximately since same hot side. Slower spinning up top, means more potential for high end boost. Compression map would get wider, but not much taller. We'll see.

All these turbos were designed with the 2.0 L in mind (except maybe the SR55) so the hotside just doesn't like the excess flow from the 2.5 L displacement. Like to see more turbos with hot sides that were match to the extra 25% displacement.

Ricowrx

09-02-2004, 06:12 AM

Sorry guy's no good update to give you. I'm still waiting for the head ecutek tuner to get back. Other than that the car is ready to go on the rollers.
-Dave

bboy

09-02-2004, 12:31 PM

You poor guy, so many prying eyes. We're excited for ya.

zacek

09-02-2004, 10:02 PM

Is this guy still on vacation?!? :confused:

Sorry guy's no good update to give you. I'm still waiting for the head ecutek tuner to get back. Other than that the car is ready to go on the rollers.
-Dave

Ricowrx

09-08-2004, 05:57 AM

Well I go in tomorrow for the final dyno tune at ESX. Wish me luck. I'll let you guy's know the results on the turbo when It's finished. :)

yeager

09-08-2004, 11:44 AM

what time? hahha

good luck, ricowrx! we are all very interested to see how this plays out. especially those of us with an sr55 in hand.

bboy

09-08-2004, 01:48 PM

Yes, data.

zacek

09-08-2004, 08:46 PM

is that today friday (8th) or tomorrow saturday (9th)?

bboy

09-09-2004, 12:42 AM

zacek, you are two day's off, buddy the weekend is over :D

I think it's tomorrow, Thursday the 9th, but with Rico and his late night hours you are right to wonder.

zacek

09-09-2004, 03:37 PM

wow! I was actually 2 days off ... :lol:

man, I wonder what kind of beer that was... :rolleyes:

deafgoose

09-09-2004, 06:21 PM

so whats the scoop? detials!!!!

yeager

09-09-2004, 10:02 PM

wow! I was actually 2 days off ... :lol:

man, I wonder what kind of beer that was... :rolleyes:

i'll take 2 cases.

prepare for updates at....ummm.... 3:27am.

wannaberacing

09-10-2004, 12:42 AM

I heard Ben wasn't coming back to west coast for another two weeks.

bluturbowrx

09-10-2004, 06:36 PM

My SR55 is on my car and is being tuned tomorrow,Saturday 9/11.It is on a built 2.0 so I don't know if you guys realy care,Just thought I would let a few people know.TERRY...

yeager

09-10-2004, 06:49 PM

My SR55 is on my car and is being tuned tomorrow,Saturday 9/11.It is on a built 2.0 so I don't know if you guys realy care,Just thought I would let a few people know.TERRY...

nah.

jokes, of course. I'm very interested. Make sure you post a thread on Saturday to let us know. Good luck getting sleep tonight.

BTW just talked to a local shop that tuned an sr55: 420whp on 100 octane. 360+ on pump 93. Not bad. On a Dynapack.

bluturbowrx

09-13-2004, 11:45 AM

Ok,The car is still not back together yet.They are finishing up this evening and the dyno session will be some time this week,sory for the hype!

happasaiyan

09-13-2004, 12:10 PM

nah.

jokes, of course. I'm very interested. Make sure you post a thread on Saturday to let us know. Good luck getting sleep tonight.

BTW just talked to a local shop that tuned an sr55: 420whp on 100 octane. 360+ on pump 93. Not bad. On a Dynapack.
sounds like theyve fixed the turbine side of the SR50 and labeled it as an SR55.

thx, aps! :furious:

serendipity

09-13-2004, 12:57 PM

sounds like theyve fixed the turbine side of the SR50 and labeled it as an SR55.

thx, aps! :furious:

My thoughts exactly. I've heard that it's both the same and larger. I don't know which is true.

I strongly suspect that an external wastegate would help on at least the SR50, to lower backpressure if nothing else.

happasaiyan

09-13-2004, 01:23 PM

RiftsWRX

09-13-2004, 03:09 PM

Jason: you're assuming the SR50 is a -11 cartridge.. I'm not sure what it is.

Jorge (RiftsWRX)
www.ProjectWRX.com

happasaiyan

09-13-2004, 03:11 PM

yeah...but from what ive heard...

so it could be done if they are, right?

Slowboy

09-13-2004, 04:11 PM

what im wondering...is if i could order a turbine cover from slowboy racing and put it on the SR50. wouldnt that solve our problem?

...since the turbine blades on the GT30R-11 CHRA would be the same on the SR50 as the SBR GT30R-11...right?

If I know for certain which CHRA it is, yes we could sell you our turbine housing by itself... I would like a measurement to be sure however since the -10, -11, and -12 CHRA all have different turbine wheels.

Regards

MGH

happasaiyan

09-13-2004, 05:23 PM

If I know for certain which CHRA it is, yes we could sell you our turbine housing by itself... I would like a measurement to be sure however since the -10, -11, and -12 CHRA all have different turbine wheels.

Regards

MGH
thats awesome. thats customer service, right there.

i will try to dig around and find some hard proof of what CHRA it uses, exactly. one more question, though- would i have to get the slowboy wastegate? or would the APS arm hook up to the flapper you guys use? i am seriously considering doing this...

i wouldnt even need to take the whole turbo off...just unclamp the turbine housing. AWESOME. :)

serendipity

09-13-2004, 08:40 PM

thats awesome. thats customer service, right there.

i will try to dig around and find some hard proof of what CHRA it uses, exactly. one more question, though- would i have to get the slowboy wastegate? or would the APS arm hook up to the flapper you guys use? i am seriously considering doing this...

i wouldnt even need to take the whole turbo off...just unclamp the turbine housing. AWESOME. :)

FWIW, sign me up for this, too, if you figure it out. (Any rough idea on price? I imagine the cartridge is the pricy part, so the housing should be relatively cheap compared to a whole turbo) If there's anything I can measure, let me know.

wgknestrick

09-13-2004, 09:24 PM

The SR55 has the EXACT same sized housings (both turb/comp sides) as the GT30-12 from Slowboy racing. I would be very confident that it is using that -12 wheel.

Just a shame that you can buy this exact same turbo from Slowboy / Full Throttle for $1300 AND they are in USA. Check the vender FS forum.

Sized in mm.
Compressor housing first/ turb second set. (inducer/exducer)
SR50---- SR55---- GT30-12
53------ 57------ 57
76.2-----76.2-----76.2

54-------60------ 60
47-------55------ 55

bboy

09-14-2004, 12:06 AM

-12 is the SR55 wheel. -11 is the SR50 wheel. -10 is pretty close to the SR40 wheel.

odin1

09-14-2004, 12:21 PM

If I know for certain which CHRA it is, yes we could sell you our turbine housing by itself... I would like a measurement to be sure however since the -10, -11, and -12 CHRA all have different turbine wheels.

Regards

MGH
I would get one as well if they work. Price please?
Can anyone find out for sure if the sr50 is indeed a gt30-11 chra? I'm truly excited :-).

odin1

09-14-2004, 12:24 PM

If I know for certain which CHRA it is, yes we could sell you our turbine housing by itself... I would like a measurement to be sure however since the -10, -11, and -12 CHRA all have different turbine wheels.

Regards

MGH
I would get one as well. Can anyone find out if the sr50 is a gt30-11 CHRA for sure? Is the slowboy exhaust housing a true Garret housing? If not what size housing is it comparable to? What would this housing cost? Thnx all-this is exciting for us sr50 owners.

serendipity

09-14-2004, 12:28 PM

I would get one as well. Can anyone find out if the sr50 is a gt30-11 CHRA for sure? Is the slowboy exhaust housing a true Garret housing? If not what size housing is it comparable to? What would this housing cost? Thnx all-this is exciting for us sr50 owners.

By the way, Odin - what numbers did you put down with your ecutek'd SR50?

odin1

09-15-2004, 03:51 AM

By the way, Odin - what numbers did you put down with your ecutek'd SR50?
Dunno, no 4 wheel dynos here in the frozen tundra. I live in Canada :-). The reflash was put together for me from an fpgreen program by Tim Bailey at pdxtuning. Great guy who went to great lengths to help me out. What about u? What were your hp and torque figures at what rpm and what octane? What I like about this turbo is it's linear power delivery and very quick spool for a big turbo. 22psi at 3500rpm in 4th. Take care.

deafgoose

09-15-2004, 04:02 AM

serendipity

09-15-2004, 08:55 AM

Dunno, no 4 wheel dynos here in the frozen tundra. I live in Canada :-). The reflash was put together for me from an fpgreen program by Tim Bailey at pdxtuning. Great guy who went to great lengths to help me out. What about u? What were your hp and torque figures at what rpm and what octane? What I like about this turbo is it's linear power delivery and very quick spool for a big turbo. 22psi at 3500rpm in 4th. Take care.

Had mine tuned at TurboXS (UTEC). 325/320 on pump (93) gas, 375/370 on race gas. (hp/tq). Very disappointing, considering stock turbo STis are putting down 310whp on pump. That's why I'm on this little crusade to make the SR50 do something productive. :)

Don't get me wrong, the car is quick and very drivable. And it's definitely faster than it was before, but I was expecting more from a turbo that's so highly touted by its manufacturer.

Slowboy

09-15-2004, 03:57 PM

thats awesome. thats customer service, right there.

i will try to dig around and find some hard proof of what CHRA it uses, exactly. one more question, though- would i have to get the slowboy wastegate? or would the APS arm hook up to the flapper you guys use? i am seriously considering doing this...

i wouldnt even need to take the whole turbo off...just unclamp the turbine housing. AWESOME. :)

I am 90% sure you can use your APS WG actuator.

MGH

Slowboy

09-15-2004, 03:58 PM

FWIW, sign me up for this, too, if you figure it out. (Any rough idea on price? I imagine the cartridge is the pricy part, so the housing should be relatively cheap compared to a whole turbo) If there's anything I can measure, let me know.

We cast 200 of our own turbine housings, so yes it will be somewhat cost effective :)

Please email me off list for pricing of JUST the turbine housing.

mikehuml@adelphia.net or mh@slowboyracing.com

MGH

odin1

09-16-2004, 02:28 AM

Had mine tuned at TurboXS (UTEC). 325/320 on pump (93) gas, 375/370 on race gas. (hp/tq). Very disappointing, considering stock turbo STis are putting down 310whp on pump. That's why I'm on this little crusade to make the SR50 do something productive. :)

Don't get me wrong, the car is quick and very drivable. And it's definitely faster than it was before, but I was expecting more from a turbo that's so highly touted by its manufacturer.

I think that's pretty good considering that txs' pump gas run on a green was 350hp/340ft/lbs. It's not that far off and spools much faster than a gree 500-600rpm difference. What psi were u running on pump and 100 oct? thnx.

zacek

09-16-2004, 03:13 AM

this is unbelievable, the SR55 is proving to be elusive at getting tested!!!!

I think is just too expensive.....

Maybe you should ditch ESX and drive all the way to Shiv.

serendipity

09-16-2004, 09:14 AM

I think that's pretty good considering that txs' pump gas run on a green was 350hp/340ft/lbs. It's not that far off and spools much faster than a gree 500-600rpm difference. What psi were u running on pump and 100 oct? thnx.

22psi on 93 octane, 25psi on C16 (116 octane leaded).

It's not _too_ far from their green, but it's only ~10whp or so higher than many stock turbo STis are putting out. It doesn't seem right. And others with greens are putting out considerably more now, particularly with external wastegates.

serendipity

09-16-2004, 02:18 PM

To those of us with anemic SR50s, I conversed with Mike (VERY helpful, by the way - if I ever upgrade again, Mike and Slowboy will be at the top of my list) and ordered a housing from his GT30 -11 turbo, to replace my "17.5" SR50 housing. I'll post up fit/don't fit and improvement results when I finish the swap.

happasaiyan

09-16-2004, 03:52 PM

keep us posted. :)

bboy

09-16-2004, 07:20 PM

I thought this thread had died or RicoWRX was attacked by RiftsWRX or something. Don't let Jorge near your oil or water lines, or you'll never get that SR55 running. :D

wannaberacing

09-17-2004, 12:42 AM

results
:o

bluturbowrx

09-17-2004, 09:24 AM

OK, my car dynos today!TERRY...

odin1

09-17-2004, 11:57 AM

odin1

09-17-2004, 11:59 AM

OK, my car dynos today!TERRY...

Good luck> Is your green still for sale? e-mail me at tom969@webtv.net

chrisfranklin

09-17-2004, 02:37 PM

would like to see an aps sr55 comparison to a green.
pump gas preferably

zacek

09-17-2004, 08:32 PM

yeah, Green VS. SR50, VS. SR55 all on PUMP gas.

wannaberacing

09-17-2004, 08:40 PM

sr55 has the advantage, oil and water cooled, and should out flow the sr50 quite a bit, say 50 to 70 hp. Seeing how the 50 listed at 1895.00 and the 55 can be had for 1950.00 at leased until Oct. 1st. I'd go with the 55 for sure.

Scoobs2002

09-17-2004, 11:56 PM

There is a 4 wheel dyno at Ultimate Racing in Toronto if you leave nearby.
There is no dyno at Ultimate Racing, but there is at 4 star motorsports in Georgetown Ontario, and Neetronics in Toronto Ontario.

Peace,

Scoobs

wannaberacing

09-21-2004, 10:26 AM

dyno?

bluturbowrx

09-21-2004, 05:05 PM

Hopefuly I will have results Wednesday or Thursday.TERRY...

chrisfranklin

09-21-2004, 06:10 PM

i do not have an sr55, nor have i seen a car equipped with one in person, but...
i talked to xxtuning thru email and they gave me some numbers from a car they tuned with utec & sr55
here is the pm:
"On a customers car with a APS 725 FMIC we made 376whp @ 23 psi.. I cant remember what RPM the turbo came on at, but I think it was about 3500.. It was a very nice smooth power curve.

I personally am not a fan of the fpgreen turbo and having the ability to have driven and dynoed both types of turbos I hands down would choose the APS line over the FPgreen.."

AL Stanek
al@xxtuning.com
XX Tuning

bboy

09-21-2004, 06:59 PM

While you are waiting look at this SR55 plot on an STI:

http://www.dynocomp.com/subaru.php?view=subaru

SR55 on STI with fair number of other mods, 409 whp, 395 wtq

Kegger

09-22-2004, 01:18 AM

While you are waiting look at this SR55 plot on an STI:

http://www.dynocomp.com/subaru.php?view=subaru

SR55 on STI with fair number of other mods, 409 whp, 395 wtq

That is really impressive, to say the least.....but Terry is going to blow those numbers away! :banana:

zacek

09-22-2004, 02:41 AM

Race gas I pressume. I would expect SR55 to provide boost way before 3500 rpms.

We'll see...

bboy

09-22-2004, 03:12 AM

I don't think so. Looks like pump fuel based on the other other plot's shown.

34 whp gain with EcuTek + filter
68 whp gain with " " + exhaust + walbro
120 whp gain with " " " " PE1820 + injectors + FMIC + more

Those numbers look about right. So why not the, SR55? It's blowing enough air above the stock turbo ~400 CFM compared to ~700+ CFM to make those numbers, plus it's got a huge intercooler and TGV delete. In fact, I'd say it's a conservative gain of:

200 whp gain with SR55 plus all that other stuff.

I think you are kidding yourself that spool is going to be earlier than 3500. This is a big turbo, bigger than a Green about equivalent to an AVO600. What that car needs is new cams, look how the torque drops like a rock--you just can't get the stuff in and out of those cylinders at the flow level.

odin1

09-22-2004, 03:29 AM

Serendipiy-get that slowboy housing yet?

bluturbowrx

09-22-2004, 10:54 AM

So far Tuan @ GRD made 410,420@23 psi,can't remember exactly, last night before the intercooler pipe blew off.They made some corrections to my intercooler and will be back on the Dyno this afternoon.Also,I am running race gas everyday,so these numbers will be on 100.Stay tuned cause I can't wait.I think I get the car back today.TERRY...

zacek

09-22-2004, 03:34 PM

I guess my question would be at what RPM will the SR55 put out 14.5PSI (stock boost) for comparison purposes?

I don't think so. Looks like pump fuel based on the other other plot's shown.

34 whp gain with EcuTek + filter
68 whp gain with " " + exhaust + walbro
120 whp gain with " " " " PE1820 + injectors + FMIC + more

Those numbers look about right. So why not the, SR55? It's blowing enough air above the stock turbo ~400 CFM compared to ~700+ CFM to make those numbers, plus it's got a huge intercooler and TGV delete. In fact, I'd say it's a conservative gain of:

200 whp gain with SR55 plus all that other stuff.

I think you are kidding yourself that spool is going to be earlier than 3500. This is a big turbo, bigger than a Green about equivalent to an AVO600. What that car needs is new cams, look how the torque drops like a rock--you just can't get the stuff in and out of those cylinders at the flow level.

wannaberacing

09-22-2004, 04:06 PM

fourth gear starting at 1600rpm the sr55 will reach 1 bar before 3500rpm easily on a 2.5l.
400whp on a dailey driver is heaven sent. Should be 350whp at 4000 climbing to 400 and holding it there until 6000. sr55 turbo's rock..

happasaiyan

09-22-2004, 05:14 PM

starting from ~3000rpms, the SR50 will reach 1 bar by 3500rpms also.

2955 -5.9 2.9 44 10 00 +44.3 14.8 ECU. -1.0 200.00 2.6 14.08
2976 -3.8 3.0 100 10 00 +40.3 18.2 ECU. -1.0 200.00 2.6 14.74
3008 -2.0 3.0 101 10 00 +34.0 19.4 ECU. -1.1 200.00 2.7 14.08
3044 -0.2 3.2 101 10 00 +32.9 20.9 ECU. -1.1 200.00 2.7 13.56
3049 +1.7 3.3 101 20 00 +31.6 21.5 +28.0 -2.5 200.00 2.9 12.68
3132 +2.9 3.2 101 20 00 +30.8 21.4 +28.0 -2.5 200.00 2.8 12.53
3162 +4.1 3.3 101 30 00 +33.3 22.5 +24.0 -2.1 200.00 2.9 12.33
3192 +5.3 3.4 101 30 00 +31.6 24.7 +24.0 -2.1 200.00 2.9 12.23
3229 +6.6 3.5 100 30 00 +31.0 25.6 +24.0 -2.3 200.00 3.1 12.33
3271 +7.8 3.5 101 40 00 +28.1 28.0 +20.1 -0.4 200.00 3.2 12.14
3310 +9.2 3.6 101 50 00 +25.9 33.6 +16.0 +2.6 200.00 3.4 12.02
3387 +10.4 3.7 100 50 00 +21.0 35.8 +16.0 +2.7 200.00 3.5 11.80
3415 +12.3 3.8 101 50 00 +18.8 37.7 +16.0 +2.8 200.00 3.6 11.39
3486 +13.7 3.8 100 60 00 +16.5 42.3 +15.0 +3.6 200.00 3.7 11.05
3595 +14.7 4.0 101 60 00 +14.9 43.3 +15.0 +3.6 200.00 3.6 11.05

do we know which CHRA the SR55 is? supposedly the SR50 is a -11...

AZScoobie

09-22-2004, 05:20 PM

I talked to Joe at Dynocomp about the 409whp pull. Its for real. Its on 100 octane unleaded race fuel. He was not sure of the exact boost but said this was under 20 psi. The motor is stock. We talked about the SR40 and SR50 as being duds and He confirmed but did point out that APS did redesign the exhaust housing on the SR50 and the newer SR50 is actually a pretty good turbo.. Much better then the older one. He said he was seeing 350whp on the SR50. The SR55 however looks like a winner! I held one in my hand a few months back. The Turbine looked small and I got worried that this would hold the turbo back. But talking to Joe and seeing that plot makes me think otherwise. That dyno is a real heartbreaker... Trust me. I know I have tuned on it many times.

Joe is going to logon and update the list of parts and info on that car later when he gets time.

C

zacek

09-22-2004, 05:43 PM

that info on the SR50 spool up is not right. APS assured that the SR50 will reach 1 bar even before the stock turbo. This test was performed on an older SR50. If they indeed modified the SR50 then that could have added more lag in exchange for more top end.

Did APS discontinue the SR50?

ok, so if Dynocomp got 409 wHP on 100 octane, what are your estimates for a 91 (California) octane pull?

zacek

09-22-2004, 06:14 PM

serendipity

09-22-2004, 06:45 PM

Yes, I did get the housing from slowboy (it's on my couch right now - looks very nice). Unfortunately, due to my off at Summit Point raceway, the car is in the body shop getting the radiator supports straightened, so I haven't had a chance to compare. As soon as I get the car back, I'll pull the SR50 off, compare, and swap. It will take me a while to tune (basically, 20 minutes here and there on my way to work and back), and even longer for a dyno, so I hope nobody's holding their breath to see how much of a difference the new housing makes. I will post back ASAP with "man, it's incredible!" or "Hmm, not sure if I can tell any difference" observations, though :) And I'm sure I'll be back at the track before I see a dyno, so I'll post up any 1/4 improvements. FWIW, my best with the SR50, fuel, intake and exhaust (stock TMIC) is 12.49@111.

AZScoobie

09-22-2004, 07:20 PM

I just noticed that MZMperformance.com also got the exact 409wHP figure on a Mustang Dyno with the DR55. Dynocomp got 409wHP on a DynoDynamics with the SR55 both on Race Fuel.

This actually means that Dynocomp was able to extract more power with the SR55 than MZM with the rotated DR55. The DynoDynamics as we all know reads lower than Mustang Dynos. This is odd.... How could a retrofitted DR55 (the SR55) make more power than the real DR55?

Very interesting....

Z.. Please dont compare these two dynos.. Its not worth it and you will always have a shady comparison. I have personally tuned on both of these dynos. MZM changed the correction factors as Mustang revised them. This really changed the numbers. The DR55 will certainly outdo the SR. There is no question of that. I am pretty sure Joe and Rich at Dyno comp have some plots of a DR car they built.

I am also pretty sure that Dynocomp ran that car on 91 and then dumped the fuel in so when they get time you might see that comparison.. In my experience with tuning on that dyno from 91 to the 100 they stock I get 30-40whp.

Cya

Clark

joebud

09-22-2004, 07:57 PM

I talked to Joe at Dynocomp about the 409whp pull. Its for real. Its on 100 octane unleaded race fuel. He was not sure of the exact boost but said this was under 20 psi. The motor is stock. We talked about the SR40 and SR50 as being duds and He confirmed but did point out that APS did redesign the exhaust housing on the SR50 and the newer SR50 is actually a pretty good turbo.. Much better then the older one. He said he was seeing 350whp on the SR50. The SR55 however looks like a winner! I held one in my hand a few months back. The Turbine looked small and I got worried that this would hold the turbo back. But talking to Joe and seeing that plot makes me think otherwise. That dyno is a real heartbreaker... Trust me. I know I have tuned on it many times.

Clark, this setup was on strait 103 octane unleaded. we ran 740cc injectors with TGV deletes and a DR650 FMIC and the SR55. The boost and timing were pretty aggresive. on that pull the boost was 25 psi and tappers to 23 at redline with no det. tuning was done with ECUTeK. we will see how long the stock bottom end will hold up. this is his daily driver and has been runnig strong for about 10,000 miles now. he's ready to drop a 2.35 crate when this one lets go.

bboy

09-22-2004, 08:09 PM

I guess Clark is saying Dyno-Comp would have seen 439-449 whp if they had used 100 oct gas.

I was hoping for more than a Green from the SR55. Sponaugle's runs would seem to out spool and nearly match this turbo's top end performance with a Green, but if the SR55 were on Jeff's car maybe it would be different--he might get more out of the 55 than dyno comp with all his stuff.

Green for less green?

ChessMaster

09-22-2004, 08:12 PM

THose are some real nice numbers for the SR55. I wanna get on that dyno before I do anymore upgrading in my car.

I'd want to recommend this turbo to a friend of mine, but he's already gone w/ a custom t3/t04e setup.

I want to see what that 409.xwhp does in the 1/4..! 11's for sure.

C

AZScoobie

09-22-2004, 08:17 PM

311 had you trapping 115+ 330 had me trapping 117. I would say that this would be a 120+ trap car.. Thats alot of power for sure!

Thanks Joe!

Clark

zacek

09-22-2004, 09:26 PM

That's not right, Clark stated before that they used Race Fuel "...I talked to Joe at Dynocomp about the 409whp pull. Its for real. Its on 100 octane unleaded race fuel..." and he said that they also have graphs of the same car in 91 octane and they would post that if they have time. So those numbers should reflect about 409-40=369wHP for pump gas. We do have some other contradictory information such as the BOOST set during the pulls. Once again we cannot rely on this run since there are so many contributors of this data with different values. Once person said under 20psi the other says it was done at 25psi.... go figure. :huh:

I guess we have to wait for the next dyno pull...

I guess Clark is saying Dyno-Comp would have seen 439-449 whp if they had used 100 oct gas.

I was hoping for more than a Green from the SR55. Sponaugle's runs would seem to out spool and nearly match this turbo's top end performance with a Green, but if the SR55 were on Jeff's car maybe it would be different--he might get more out of the 55 than dyno comp with all his stuff.

Green for less green?

serendipity

09-22-2004, 10:04 PM

311 had you trapping 115+ 330 had me trapping 117. I would say that this would be a 120+ trap car.. Thats alot of power for sure!

Thanks Joe!

Clark

Those traps don't seem right for the power numbers indicated (unless it's a low-reading dyno). I don't think my shifting is _that_ poor (111 traps with 325whp)

joebud

09-22-2004, 11:31 PM

That's not right, Clark stated before that they used Race Fuel "...I talked to Joe at Dynocomp about the 409whp pull. Its for real. Its on 100 octane unleaded race fuel..." and he said that they also have graphs of the same car in 91 octane and they would post that if they have time. So those numbers should reflect about 409-40=369wHP for pump gas. We do have some other contradictory information such as the BOOST set during the pulls. Once again we cannot rely on this run since there are so many contributors of this data with different values. Once person said under 20psi the other says it was done at 25psi.... go figure. :huh:

I guess we have to wait for the next dyno pull...
I did initially tell Clark 'less than 20psi' I was mistaken we do so many.it's hard to keep track. we do have some pulls with less boost but same fuel. I can post is you would like to see them.

ChessMaster

09-23-2004, 02:02 AM

Those traps don't seem right for the power numbers indicated (unless it's a low-reading dyno). I don't think my shifting is _that_ poor (111 traps with 325whp)

Yup, it's a low reading dyno- dyno dynamics. So 409.x whp is killer horsepower! That will get some crazy times for sure!

C

odin1

09-23-2004, 03:51 AM

odin1

09-23-2004, 03:57 AM

serendipity

09-23-2004, 08:02 AM

I for one am holding my breath :-). Does it look bgger than the sr50 housing? Was your 12.49 111 on pump gas? What octane and at what boost? thnx much. I got 12.15 @ 114.5 on 94 oct pump at 20psi on my sr50 w/ a green based reflash and no dyno tune with a 2.0 sec 60ft time and some detonation shifting into 5th. What was your 60ft? Keep us posted.

Strange. Yes, the 12.49 was mostly pump gas (I added a few gallons of 100, octane was about 97). I used my street map and added a degree of timing throughout, but ran the same boost.

60's were about 1.7-1.8. My launches have gotten worse since the turbo swap. Using launch control, I now either spin or bog. I'll need to work on my technique to get those back down to the 1.6s I was hitting on stock turbo.

What other mods do you have? I still have stock turbo inlet, stock headers and uppipe, stock TMIC, etc. Only mods are turbo, fuel, TBE (turboXS catless), intake, and UTEC. Your times and traps are very nice for a relatively untuned map.

And yes, the housing (judging by memory) looks a good bit bigger than the SR50's. Hopefully I'll have the car back this afternoon and be able to take a look-see.

bluturbowrx

09-23-2004, 09:37 AM

I got to drive my car last night with the sr55.The lag is not bad at all I saw 1 bar by 4k.When it hit 5k the car just lit up.I am very impressed with the sr55 on my 2.0.I didn't beat on the car yet and I only floored the car in third.So far we are at 429@ 25.9 LBS.I'm sold!TERRY...

odin1

09-23-2004, 01:32 PM

Strange. Yes, the 12.49 was mostly pump gas (I added a few gallons of 100, octane was about 97). I used my street map and added a degree of timing throughout, but ran the same boost.

60's were about 1.7-1.8. My launches have gotten worse since the turbo swap. Using launch control, I now either spin or bog. I'll need to work on my technique to get those back down to the 1.6s I was hitting on stock turbo.

What other mods do you have? I still have stock turbo inlet, stock headers and uppipe, stock TMIC, etc. Only mods are turbo, fuel, TBE (turboXS catless), intake, and UTEC. Your times and traps are very nice for a relatively untuned map.

And yes, the housing (judging by memory) looks a good bit bigger than the SR50's. Hopefully I'll have the car back this afternoon and be able to take a look-see.

Thnx. I was told that the key to making power from sr50s is increasing the ve of motor. To that end, I've ported gasket matched and header wrappedthe stock header.Wrapped the uppipe downpipe and turbine housing. Perrin big maf perrin modded inj.,walmart pump,godspeed downpipe catless, greddy evo exhaust, mrt tmic, mbc.All thisstuff helped spool enourmously. I get 17psi at 3100 rpm and 22psi at 3450-3500 rpm n 4th. Very responsive turbo. Now if I could only improve my launch. How are u launching to get 1.7-1.8 60 fts.

AZScoobie

09-23-2004, 01:34 PM

zacek

09-23-2004, 01:45 PM

wow! that's nice, what's ve? exhaust velocity?
What's your top end power?

Thnx. I was told that the key to making power from sr50s is increasing the ve of motor. To that end, I've ported gasket matched and header wrappedthe stock header.Wrapped the uppipe downpipe and turbine housing. Perrin big maf perrin modded inj.,walmart pump,godspeed downpipe catless, greddy evo exhaust, mrt tmic, mbc.All thisstuff helped spool enourmously. I get 17psi at 3100 rpm and 22psi at 3450-3500 rpm n 4th. Very responsive turbo. Now if I could only improve my launch. How are u launching to get 1.7-1.8 60 fts.

odin1

09-23-2004, 01:52 PM

wow! that's nice, what's ve? exhaust velocity?
What's your top end power?
ve =volumetric efficiency. ie helping the motor breathe. Don't know my power, no dynos here. I know if I could get my 60fts down, up psi to 22psi when I get the new relash so I'm not detoating, 11's should be possible.

SlvrRS

09-23-2004, 01:52 PM

wow! that's nice, what's ve? exhaust velocity?
What's your top end power?

IIRC
ve = volumetric efficiency

edit: beaten to it

serendipity

09-23-2004, 02:18 PM

Thnx. I was told that the key to making power from sr50s is increasing the ve of motor. To that end, I've ported gasket matched and header wrappedthe stock header.Wrapped the uppipe downpipe and turbine housing. Perrin big maf perrin modded inj.,walmart pump,godspeed downpipe catless, greddy evo exhaust, mrt tmic, mbc.All thisstuff helped spool enourmously. I get 17psi at 3100 rpm and 22psi at 3450-3500 rpm n 4th. Very responsive turbo. Now if I could only improve my launch. How are u launching to get 1.7-1.8 60 fts.

Interesting. So you've got a bigger TMIC than I do, but otherwise, it's just porting and wrap (similarly, happasaiyan has a lot of breathing mods, and feels that he's definitely making good power.)

Did you feel that header wrap made a big difference on stock headers? I would think the cast iron headers and uppipe wouldn't really benefit from wrap. I get similar spool numbers in 4th gear with stock headers and no wrap anywhere, though. I'll have to look into porting and gasket matching the uppipe and headers while I have the turbo out.

My launches were with launch control (UTEC) set to about 6k RPM, and basically dumping the clutch. This worked well (at lower RPM) on stock turbo, but now it's a "bog or spin" exercise in futility. Based on Nathan's advice in another thread, next time I go out I'll try slipping the clutch a little more, to see if I can thread the line better. I should definitely be able to at least match my 1.6 60's that were done with the VF39.

bluturbowrx

09-23-2004, 04:01 PM

sr55,aps fuel rails,pe 800cc injectors,fmic,perrin big maf,aps tumbumbler delete valves,ecutek,avcr,fuel pump.Crank,alternator pulleys,Weisco pistons,Oliver rods,crank balanced to 10k,some head work bigger valvetrain,Gimme gears tranny,MRT Radiator,100 shot of nitrous not being used at this time,Clutch masters stage 3,Lighten flywheel,Aps downpipe,HKS cat back,Aps uppipe.Sunburst orange color swap,Volk te37s,AP racing big brakes,and on and on and on hehe.The car was tuned on dyno packs at GRD in Naperville ILL.TERRY...

zacek

09-24-2004, 03:26 AM

damm, is there space on your budget for my car??? :lol:

zacek

09-24-2004, 04:09 PM

I just got some numbers in from APS and I'll post their chart if they allow. This is what they got as far as spool up on what I assume is regular pump gas on their SR55 and their 2.5L STi motor.

14.5psi by 2750rpm's
16.0psi by 2900rpm's
18.0psi by 3020rpm's

363wHP @ less than 22 psi on DynoDynamics.

If we could replicate those spoolup charateristics with our setup that would be awesome. In writing is seems to be same or even outperform the green in the spool department.

They will officially stop production of their SR50 turbo if they haven't yet. I wonder who still has SR50-20 in stock.

bboy

09-24-2004, 05:11 PM

Those numbers are "insanely great", as Steve Jobs would say.

Did APS indicate the other modifications to achieve those numbers, other than tuning?

I am truely impressed with that spool up, actually floored. It's about 350 RPM earilier than Sponaugle's green run.

zacek

09-24-2004, 06:58 PM

APS did not specify more details but I would assume that pull included their APS Race Fuel Lines with tumbler deletes, 65mm intake, their 3.5" Turbo back and one of their DR Series FMIC. Using their Unichip setup just like their pull on the SR50.

One thing to point out is that APS normally does not test pulls on aftermarket headers nor up-pipe. This could potentially explain why their spool up is quicker. But then again we could obtain a better top-end with headers.

btw, this info came from Peter Luxor @ APS.

STIV6

09-26-2004, 02:05 AM

6 million dollar question.....will the APS SR55 out perform an AVO500 in regards to spool up and top end power all things being equal ??

Ricowrx

09-26-2004, 09:04 AM

Update: well at my last dyno tune I had some big fuel delivery problems. They got my car up to 300whp on costco 91 they said I could do better. My perrin fuel rails were leaking a fine spray of mist from each bank when ever the car got on high boost also the duty cycle was maxing out on my perrin modded sti injectors I'm guessing probably do to the fuel delivery issues, so I just decided to toss the perrin stuff and get the ultimate racing top feed kit, I take my car back there next week for the install and final dyno tune on costco 91... I can't wait until all this is said and done... and for it to be over with. From what I can tell about driving my sti around town with APS' new SR55 on it, the spool is great and feel's like if not better than stock and that's with APS' huge DR650 front mount and hks headers on the car... I'm pretty impressed with the turbo it's nothing like I thought it was going to be like. -Dave

wannaberacing

09-26-2004, 10:30 PM

Oh Ya

zacek

09-27-2004, 02:41 PM

here is the APS dyno-chart, I was just told this was done on PUMP 94 octane gas.

http://206.13.93.15/sr55/us25_sr55.gif

Interpolating data:
14.5psi by 2750rpm's
16.0psi by 2900rpm's
18.0psi by 3020rpm's

Remember this is on pump gas and it is denoting wheel HP on a DynoDynamics unit. That's pretty good balance between lag and top-end power under these conditions.
What do you guys think?

AZScoobie

09-27-2004, 02:49 PM

Also note that chart is in Shootout mode where all controls and settings are locked and a correction is locked. Its was developed so shops all over the world could compare whp runs.. If Shoot out mode the Dynos will be using the exact same settings.. You cant alter load or anything.. These numbers tend to read much lower then normal power pulls.. Thats alot of power but a real ****ed up boost curve and that power curve is not very smooth..

C

ami2fst4u

09-27-2004, 02:53 PM

Clark, you have a PM.

Rick

john banks

09-27-2004, 02:54 PM

Has the look of a boost map used to stop compressor surge?

happasaiyan

09-27-2004, 03:17 PM

looks like it has an 18lb spring...then looks like it wants to be controlled at 19.5 or so but is creeping?

either way, that is one funky looking boost plot.

zacek

09-27-2004, 04:20 PM

I wouldn't worry about the boost, I'm pretty sure that was them playing to see what the car could do under pump gas. Maybe detonation was showing on the top end therefore they pulled boost. Besides this can be controlled by our EM of choice correct?

subiekid

09-27-2004, 05:12 PM

open ps and reduce image sizes.

zacek

09-27-2004, 05:13 PM

? pardon...? It's only 1 GIF file and is 23k in size, how can I make that any smaller? ;)

open ps and reduce image sizes.

zacek

10-13-2004, 01:44 PM

so.... so much hype and no SR55 tuning?

yeager

10-13-2004, 02:20 PM

it's enough to piss off the pope

zacek

10-14-2004, 12:38 PM

where is the pissing smilie? :lol:

MTOWRX

10-15-2004, 04:30 PM

any updates?

zacek

10-15-2004, 08:59 PM

just in case you guys missed it, here is a link to DynoComp's site where they have an SR55 dynochart on a STi along with the most common upgrades. I do would like to see PUMP gas pulls though.

DynoCharts (http://www.dynocomp.com/subaru.php?view=subaru)

chrisfranklin

10-19-2004, 05:50 PM

any updates?
seriously...

yeager

10-19-2004, 06:05 PM

where is the pissing smilie? :lol:

where's the pope smiley?

On a side note, I ordered a dr55 kit from Australia. It will be here tomorrow. I feel it will be installed, tuned and my engine blown before this thread is updated. ;)

chrisfranklin

10-19-2004, 06:10 PM

where's the pope smiley?

On a side note, I ordered a dr55 kit from Australia. It will be here tomorrow. I feel it will be installed, tuned and my engine blown before this thread is updated. ;)
you could probably go to australia via hot air ballon and pick up your kit b4 this thread sees results

Ricowrx

10-26-2004, 07:49 PM

Update: Well after spending thousands of dollars at my last tuner for nothing but a continuous stream of check engine lights, misfires, and engine hesitation, stuttering and I didn't even get dyno print outs. I have wised up and made an appointment with Harman Motive for a completely new dyno tuning session appointment for the end of this week. I spoke to Dan at HM and he took the time out to talk to me over the phone addressing all of my problems he even said that he currently has a car from my tuner that they brought it over to HM after the problems they were having. I will let you guy's know the results when I do. -Dave

Harman Motive, Inc.

10-26-2004, 09:01 PM

Holy crap... I didn't know what I was getting myself into. Just found this thread.

... this should be interesting. :D

Dan

yeager

10-26-2004, 09:48 PM

sorry to hear about all the crap, but sounds like that thing will howl soon.

wasnt your car being worked on by the venerable esx?

bboy

10-27-2004, 03:40 AM

Awesome, when you going to Harman?

Write up that other guy in the Vendor Reviews section.

zacek

10-27-2004, 04:24 AM

oh c'mon do tell us who was that vendor....? :devil:

Ok, past that, dude I'm sorry u wasted all that money, I've been there before and it is fricking frustrating see all that hard earned ca$h not do any good and worse just getting ur car messed up not to mention the long a.ss wait.

I really hope Harman Motive can make you pop a HUGE SMILIE with their skills. Unfortunately I can't follow ur footsteps as of yet, maybe early 2005 as I have no mula at the moment. Good Luck !

When is your tuning taking place this time? I would still like to show up and show support. :D :D :D

racinready300ex

10-27-2004, 07:46 PM

so let's see....

$2,200 for turbo + $22,000 for ESX built-motor = $off scale.... :lol:

By the way.... no none knows for sure the the U.S. STi motor can really hold up 20psi all day long in the long run.... to me 18psi is the max if you want your stock motor to last for a while....

Quote: "Is that what ESX told you? Sounds like they want to sell you a built motor That or were afraid to tune your car over 20psi.. "

People used to say, the wrx motor was only good for like 18 psi. I've been running 22-23 through my stock long block for a year, and I was running 18-20 for a year before bumping up to the 22psi. I will probably be upping it again soon. So does that mean my motor is stronger that yours? I'm sure the sti motor can handle 22 psi long term no problem with a good tune, maybie more.

1m4dSTI

10-27-2004, 08:34 PM

Along with rico im another pissed off customer..countless problems..after spending thousand and thousands it kind of gets old..Im going with crawford performance for a full build..when they get back from Sema the car is going down there..when i take it there ill try to keep updates..

zacek

10-27-2004, 09:38 PM

wow! another upset member.... who was the tuner that messed you guys up? :(

wrex03

10-28-2004, 10:31 AM

Look at the last posters name. ;)

1m4dSTI

10-29-2004, 04:31 AM

lol can u change user names on this forum?...lol ..

zacek

11-08-2004, 06:42 PM

so any updates before christmas?

kool168

11-08-2004, 06:48 PM

very nice piece

Ricowrx

11-09-2004, 12:11 AM

so any updates before christmas?

I can't do update's too often, it makes me sick thinking about how hard it is to find good people to tune and work on a car and that my almost brand new STI just sit's in the garage. Well, anyway I drove down to Harman Motive to get my car tuned and when I got there Dan said a ecutek file was bad and that his computer wasn't operating or something and he wasn't able to tune my car. I haven't been back since. Well I went down to Sema this past week just checking everything out and I even saw Overhaulin' filming a final reveal there haha I also got courtney Hansens autograph.. Also while I was there I talked to Richard Gomez of dyno-comp and he seamed like a really professional and confident individual. His car that was on show case at the APS booth was very similar to mine so I'll give him a try. Scottsdale, AZ here I come.