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Old 08-05-2009, 01:36 PM   #1
Cool_Whhhip
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Default 2002 Hybrid WRX - 18G- Dyno

**Please see page 2 for new dyno sheets**

I cant really brag but I was hoping yall could chimme in and tell me what going on. I was expecting more power.

Event: dyno pull
Location: Enginelogics Houston
Ambient Temp: between 80-90f
Elevation:
Weather: sunny
Car: 2002 WRX 2.0 heads with 2.5l sti short block
Tuner: Brad
Dyno Info:
Peak HP at RPM: note whether or not it is SAE corrected
Peak Torque at RPM: note whether or not it is SAE corrected
Baseline hp/tq for a stock on same dyno: list numbers and note whether its WRX or STi and 2.0L or 2.5L
Target Boost: preferably in psi
Target AFR:
Fuel: 93 octane
Engine/Power Modifications: stock rebuilt heads, brand new 2.5l sti block
Driveline Modifications: stock 2004 wrx transmission, stage 3 clutch


Mods:
2.5l sti block
fresh rebuilt heads
750cc injectors
blouch 18g turbo
4" down pipe
3" exhaust with stock muffler
up pipe
hks BOV
walbro fuel pump
and thats all i can think of now....

Its only got about 2k miles on the block and re-built heads. Almost everything pertaining to the engine was replaced with new parts. (hoses, belts, pumps etc.)






**Please see page 2 for new dyno sheets**
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Last edited by Cool_Whhhip; 03-05-2010 at 03:45 PM. Reason: Update
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Old 08-05-2009, 02:03 PM   #2
smokeone954
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Not really sure whats goin on with your set up, but something is wrong. My stage 2 wrx had more power.
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Old 08-05-2009, 02:16 PM   #3
BlackJavaPearl04
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hey man your shy +/-100 hp/torque there. How much boost? Either that or you have the wrong graph?
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Old 08-05-2009, 02:21 PM   #4
csmithwrx'05
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Yep, that looks pretty low. I think people will want a little more info...

How much boost are you running? What headgasket did you use? How did you do the breakin (mileage, psi, rpms)? What pistons (stock EJ257 or aftermarket? What compression?
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Old 08-05-2009, 02:23 PM   #5
SpankySuby
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hmmm i would try it with out that stock muffler that thing has to be a nice restriction and also what boost are you running looks like your only at around and avg. of 16.5 PSI you should easily beable to run much more psi with 750cc injectors ive only got sti pinks (565cc) and im running almost 19 psi with a APS SR55 turbo sure ive got alot more supporting mods but that seems really low.
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Old 08-05-2009, 02:23 PM   #6
Cool_Whhhip
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Yeah its the right graph and the tuner said it didn't want to handle more than 18psi. I dont know what that means. It runs strong though.
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Old 08-05-2009, 02:26 PM   #7
Chuck H
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Something is definitely wrong with either your turbo, motor, or tune. You're only seeing 17 psi max boost, and it's not peaking until after 4000 RPM. With a 2.5L motor feeding it, you should be spooling that sucker up a lot quicker than that. If you could get a plot that shows A/F ratio along with boost, instead of torque and boost, that would help people diagnose the tune a little better. Do you know if your BOV has a major boost leak, or anything simple like that? Other than that, I'd be looking for other air leaks in the intake path, wastegate problems, or something along those lines.

My 2.0L 2003 WRX makes more power than that on a Dyno Dynamics dyno with a VF34 turbo and 550cc injectors. With a 2.5L block and 18G turbo, you should easily be hitting 300 hp with a good tune.

*** EDIT: the AFR plot showed up while I was writing my response. Your tune is pretty lean after the turbo starts to spool up. Any idea on injector duty cycle? I wouldn't think you'd be maxing out 750cc injectors with that setup, so I'm surprised the tuner didn't add more fuel and then try more timing to get a bit more out of it. You should be able to peak to more than 17 psi before you start tapering off the boost.
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Old 08-05-2009, 02:29 PM   #8
SpankySuby
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hmm according to your first graph its peaks just shy of 18 psi then drops drastically to just shy of 16 then climbs maybe another .5 psi.



^^^what he said its gotta be a tune or a restriction some where with fuel ive got 565cc and also a walbro 255 pump and 19 psi and im not maxing mine close but still not

Last edited by SpankySuby; 08-05-2009 at 02:34 PM.
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Old 08-05-2009, 02:48 PM   #9
Cool_Whhhip
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2 days after the tune my wastegate had a knocking sound, like clicking. Then I had to drive to LA which was 5 hrs round trip and once i got back the clicking had gone away. It used to make a clicking sound after i turned the car off but now thats gone too. I checked all around for boost leaks but couldn't find any. I have no idea what caused the sound, all i know is that it was from the wastegate and now its gone.
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Old 08-05-2009, 03:22 PM   #10
Cool_Whhhip
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Quote:
Originally Posted by csmithwrx'05 View Post
Yep, that looks pretty low. I think people will want a little more info...

How much boost are you running? What headgasket did you use? How did you do the breakin (mileage, psi, rpms)? What pistons (stock EJ257 or aftermarket? What compression?
I used sti gasket.
I had it tuned for the break in... 5psi and 5200 rev limiter.
I changed the oil every 500 miles then used Mobil 1 at 1600 miles. Had it tuned right around 1600-1700 miles.
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Old 08-05-2009, 06:06 PM   #11
crashtke
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You using a factory boost control solenoid? Checked for boost leaks?
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Old 08-05-2009, 07:13 PM   #12
Cool_Whhhip
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Quote:
Originally Posted by crashtke View Post
You using a factory boost control solenoid? Checked for boost leaks?
Good call, youre a genius.
Its the stock solenoid but theres no hose connected.
Does anyone know which hose i look for?
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Old 08-05-2009, 07:16 PM   #13
Cool_Whhhip
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Is it the hose on my intake? Because that one is tapped with a screw.

So yeah i think i figured it out.. This hose is the one.
What effect will it have after i re-plug it.
Will it throw off the tune?

Last edited by Cool_Whhhip; 08-05-2009 at 07:38 PM.
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Old 08-05-2009, 08:04 PM   #14
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you might consider calling your tuner and asking him what the deal is and what you should do. if hes knowledgeable and reputable he will sort you out.
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Old 08-05-2009, 08:08 PM   #15
Cool_Whhhip
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Quote:
Originally Posted by pseudoyou View Post
you might consider calling your tuner and asking him what the deal is and what you should do. if hes knowledgeable and reputable he will sort you out.
Yeah i already tried a little after 6 but they had already closed for the day. So ill have to wait til tomorrow.
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Old 08-05-2009, 08:22 PM   #16
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Quote:
Originally Posted by Cool_Whhhip View Post
Yeah i already tried a little after 6 but they had already closed for the day. So ill have to wait til tomorrow.
thats probably a good idea, but im pretty sure that the hose in question is supposed to be hooked up to the intake arm. the whole screw plugging the hose thing sounds pretty strange imo. i dont see how you were tuned without that being an issue if youre using the stock bcs.
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Old 08-05-2009, 08:57 PM   #17
Cool_Whhhip
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Quote:
Originally Posted by pseudoyou View Post
thats probably a good idea, but im pretty sure that the hose in question is supposed to be hooked up to the intake arm. the whole screw plugging the hose thing sounds pretty strange imo. i dont see how you were tuned without that being an issue if youre using the stock bcs.
From the arm its already connected and it was tucked under so i never caught it til recently. I know the shop which did my rebuild most have forgotten where it went or something and just plugged it with a screw.

Im just wondering if this hose not being connected could have this big of an effect on the missing hp and boost.
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Old 08-05-2009, 09:21 PM   #18
Cards2323
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Im pretty sure the hose that connects to the intake from the bcs is to release extra pressure back into the intake. The hose should go from the bottom of the bcs to the inlet, Whats connected the the bottom of the bcs?
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Old 08-05-2009, 09:25 PM   #19
Cool_Whhhip
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Quote:
Originally Posted by Cards2323 View Post
Im pretty sure the hose that connects to the intake from the bcs is to release extra pressure back into the intake. The hose should go from the bottom of the bcs to the inlet, Whats connected the the bottom of the bcs?
At the bottom of the bcs.. nothing, just like an open port or nipple.
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Old 08-05-2009, 09:37 PM   #20
Twiztidunreal
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i hope it wasnt engine logics that did the build and left that off....unless you have a MBC..just saying, i see where you had it dyno at
also, engine logics dyno is know as the heart breaker dyno of out area, stock sti's put down like 210-220whp stock

Last edited by Twiztidunreal; 08-05-2009 at 09:44 PM.
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Old 08-05-2009, 09:41 PM   #21
Cool_Whhhip
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Quote:
Originally Posted by Twiztidunreal View Post
i hope it wasnt engine logics that did the build and left that off...unless you have a MBC
also, engine logics dyno is know as the heart breaker dyno of out area, stock sti's put down like 210-220whp stock
No no, engline logics didnt do the rebuild. All theyve done is the tuning.
What do you mean by their dyno being a heart breaker?
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Old 08-05-2009, 09:50 PM   #22
crashtke
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Still, no reason that they should be that limited on boost. If with the boost control hooked up correctly does not enable you to hit over 16-17 psi, think about getting a perrin, gm, ixizconcepts, etc boost control solenoid. That turbo should be hitting at least 20 psi easy. I don't care if it IS a heart breaker dyno (just another name for low reading) you should be putting down more than you are with a 18g and should definitely be able to hit a little higher boost.

The only thing I can think of is they are pushing a lot of timing and keeping the boost down, but that obviously is not working, lol.
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Old 08-05-2009, 11:46 PM   #23
Cool_Whhhip
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Quote:
Originally Posted by crashtke View Post
Still, no reason that they should be that limited on boost. If with the boost control hooked up correctly does not enable you to hit over 16-17 psi, think about getting a perrin, gm, ixizconcepts, etc boost control solenoid. That turbo should be hitting at least 20 psi easy. I don't care if it IS a heart breaker dyno (just another name for low reading) you should be putting down more than you are with a 18g and should definitely be able to hit a little higher boost.

The only thing I can think of is they are pushing a lot of timing and keeping the boost down, but that obviously is not working, lol.

Yeah afterwards we were both kind of dissapointed with the results but he made it sound like he did his best and if he pushed for anymore it might have been harmful. Im going to try and pick up a new bcs.
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Old 08-06-2009, 09:00 AM   #24
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wow im totally speechless.
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Old 08-06-2009, 11:36 AM   #25
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Quote:
Originally Posted by Cool_Whhhip View Post
Yeah afterwards we were both kind of dissapointed with the results but he made it sound like he did his best and if he pushed for anymore it might have been harmful. Im going to try and pick up a new bcs.
Pick up a new tuner while ur at it.
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