Just posting this for Mark. He will respond with all the details shortly. Remember that they are still not finished and expect even more power.

w00t for MarkG!!!!

http://the.ghet.to/cars/derek/MarkG/Marksboostloosedyno.JPG

Car was tuned @ 26 PSI.
Timing was set @ 25 degrees IIRC.

The flat HP curve and the torque drop off is due to a faulty wastegate.

Plans call for the car to max out the gt35r turbo with another 3-4#'s of boost...and to replace the current wastegate spring which is holding the car back to 26#'s of boost.
Timing will also be bumped up a bit...and then we hit the race track ;)

After all this time it looks like its coming together...Thanks to the boys @ Gruppe-S :)


It isn't a 600whp setup :p..but it should get the job done nicely.

What are you using for an EWG and boost control?

What are you using for a wastegate and boost control?
Tail 44mm
AVC-R with a Hydra

Huh, I would've thought an AVC-R would hold the boost no matter what bar spring you had in the EWG. I guess not?

Nope, AVC-R's Duty was set at 90% (which is max) for the entire tune. He needs a new spring.

Possibly a 500whp sti on the Gruppe-s dyno.;) I can't wait for the final numbers.

Possibly a 500whp sti on the Gruppe-s dyno.;) I can't wait for the final numbers.
That magic 500whp would be nice...but i don't think the turbo will flow it :(

Darn GT35r :lol:

Come to think guys are putting down 480whp with 30r...whats up with that?

My guess is 475-480. But we all know I am cheating.

Nope, AVC-R's Duty was set at 90% (which is max) for the entire tune. He needs a new spring.
90% duty cycle...wow. I'm set for 1.6 bar (or whatever it is) and I get a max duty cycle of only 54% with a .6bar TIAL spring.

But, if you're maxed out, you're maxed out. :)

Wow those are some sick numbers Mark. What spring are you running right now? I just put in a new spring along with the small .5 bar spring I had before, now my gate stays shut up until 1.2 bar. I hope this will be good enough to run 26-28psi w/ an avcr ;)

Good luck with the rest of the tune!

-Dan

this is on a 2.3l w/o avcs correct?

Yea wondering what spring you're using too... that already on the gruppe-s dyno, as we've all seen, proves to be a solid low 11 second car.

this is on a 2.3l w/o avcs correct?
2.55l with DPR AVCS stage 4 cams
I don't quite know if the AVCS has been dialed in yet..as these are the first race gas runs.
Theres still some fine tuning to be done.

great numbers. I cant wait to see what it does at the track.

What weight spring are you using right now?

What weight spring are you using right now?
I don't know.

We have never opened up the wastegate to my knowledge.

Im sure with the larger cams it makes the 35r spool late so dialing in the avcs should help that a bit. Great #'s! Im looking to put a 35r on my 207...;)

get a injection kit. it will do some wonders on that car

hey mark!

i'm anxious to see you get everything dialed in. keep the posts coming!

mike :)

Update: the new spring is in.

Mike did a few dyno pulls afterwards....the cars over 460 WHP/ 400+ TRQ now..still not fully dailed in, still down on boost alittle.

I think the injectors are close to maxed...the clutch is also nearing its max as well...Good problems i guess...it just means the cars making a arse load of power.

2.55 and low torque? whats up with that.

I thought most of the STi's around here were putting down pretty much equal hp and tq numbers ( ie 400 whp and 400 ft*lbs) and even remember seeing some where the torque was higher than the hp.

Something seems way off here. Yeah and Perrins gt30 did 480 whp and 475 ft*lbs.
Shouldnt the 35r be able to beat that easily?

And element just tuned this one "678 whp and 634 ft/lbs of torque all turbo using VP C16 fuel. " also with a 35r
http://forums.nasioc.com/forums/showthread.php?t=924114&highlight=gt35r+sti

What are the differences between these other setups and yours?

Something seems way off here. Yeah and Perrins gt30 did 480 whp and 475 ft*lbs.
Shouldnt the 35r be able to beat that easily?

So guess that means if i got into a race with this gt30r'd car I would lose :confused: :lol:

Stop acting like a newbie.

All we need to run 10's is about 445ish whp on THAT dyno..the cars making that running 24-25 PSI on race gas.

My ego isn't big enough to require me to ship the car to another shop for dyno #'s/bragging rights...

I have to agree with Mark on this one. Gruppe-s has a very low reading dyno and with 440whp paired up with a good driver, it's definitely capable of hitting 10sec. In fact, I think we will be seeing another usdm sti in the 10's pretty soon.;)

werd to your mutha!! my forester should be next in line.

Ahh ****!! Mark's car is starting to work !! Must drive back down to hayward and tinker with it!! Must tell Mike to hurry my build up so I can beat Mark!! lol

2.55 and low torque? whats up with that..

Longer duration cams hurt torque.

So guess that means if i got into a race with this gt30r'd car I would lose :confused: :lol:

Stop acting like a newbie.

All we need to run 10's is about 445ish whp on THAT dyno..the cars making that running 24-25 PSI on race gas.

My ego isn't big enough to require me to ship the car to another shop for dyno #'s/bragging rights...

I wasnt trying to be a dick or anything. The gt30 i could chalk up to a low reading vs a high reading dyno, but the Element tuning one is just weird.
A 200 whp and 200 ft*lbs difference! But there trap of 135.5 makes me think their dyno reads a little high at least compared to gruppes.

i guess we shall see soon enough.

hey Mark.

are you going to increase your redline rpm. i would think that your set up will handle it no problem.

can't wait to see what you car's #'s whp will be when its all said and done.

good luck

Mike.

He doesn't need a new spring, he can plumb the AVC-R differently.

are you going to increase your redline rpm. i would think that your set up will handle it no problem.


With the spool...the car should not have problem with boost between shifts...even with the redline set @ 7500-7600 rpm as it is right now.

The motors asking for a bigger turbo..but i don't want to go that route.

With the spool...the car should not have problem with boost between shifts...even with the redline set @ 7500-7600 rpm as it is right now.

The motors asking for a bigger turbo..but i don't want to go that route.


What's a little more down time??? Might as well give that bad boy what it's asking for :) GT40R

GT40R
And a clutch...and injectors, and we may run out of intercooler as its rated at about 700-800 hp (Perrin)....Can i please loan out 6-7k? :lol:

I wasnt trying to be a dick or anything. The gt30 i could chalk up to a low reading vs a high reading dyno, but the Element tuning one is just weird.
A 200 whp and 200 ft*lbs difference! But there trap of 135.5 makes me think their dyno reads a little high at least compared to gruppes.

i guess we shall see soon enough.

when the car your talking about ran 135.5 it was only making 592whp it has had some things changed and is now at 678whp. it would trap higher now i'm sure.

when the car your talking about ran 135.5 it was only making 592whp it has had some things changed and is now at 678whp. it would trap higher now i'm sure.
I hope they fix that 1st and 2nd gear boostin problem...maybe NOS?

With that resloved that should be a monster of a car. :disco:

Thats one reason we stayed with the .82 housing...as we haven't had any problems with spool/boost onset even when this turbo was being run on a smaller 2.35 motor...its seems to be a real good 1/4mile/road race setup.

What some people don't understand is that its not all about PEAK power...but also about spool/torque...and being able to build boost out of the hole...as that greatly affects the rest of the 1/4mile ET and the trap speeds somewhat.

2.55 l and torque peak at 6k rpm. can that be right??? 2nd gear pull?

If you weren't planning on going to a bigger turbo why did you go with those aggressive cams? I would think DPR's milder cams would've sufficed for the powerband you were looking for? Just curious

Alot of ppl close to the project agree. I think Mark is still on the fence so to say about what the plans are for this car but I would watch this guy closely because you never know what he could pull out of his sleeve in the coming months.

The good thing is the motor is just laughing at the power its putting down. It's a very well setup gruppe-s package with awesome DPR heads and conservative, reliable, repeatable tuned power. Once Mark decides where he really wants to go with this setup then we can start asking why but till then lets see how 450-460 WHP does at the strip.

:devil: :devil: :devil:

+1 for a gt40r kit

YOU can do it Mark!

can you just imagine what would happen if your set up was dialed in with a gt40.....

you might as well put the cherry on top of your dessert(gt40 in fully modded sti) since you have nothing missing that can support that kind of power performance and reliability wise.

"if you build it they will come" :)

Just wanted to throw in the bit before inevitably a flame comes how this guy is one of the FEW subaru owners who have run 1/4 times proportional to their whp in the past. Given the increase in power hold the negative comments until track results come in. This man does not disapoint :) No pressure...

Mike will be tuning it agian this week im sure, those were just early numbers, its to bad we dont have a dynojet in the bay area anymore to give the glory run type numbers, the mustang at gruppe-s to me seems to have a magic number being 350whp seems its so hard for cars to hit that number but the ones that do are true monsters, im just glad to hear some numbers and see the car making some progress, hopefully my cars next

This is a vid. from the last car that did 467whp on the Gruppe-S dyno:
The first pass was crap...the second run was alittle better until the intercooler hose let go at around 800-850 ft...Note the 1/8 mile and 1/8 mile trap speeds..on the second pass.

http://www.daporkchop.com/host/mikesbucket.wmv

My car and Mikes' old setup are gonna be real close in the HP department...with my car having slighty more torque..500-600 less RPM but alittle better spool.

This should give some taste of what the car should be able to do...but we will be going to a faster track...and i should be able to drive the car somewhat better, i hope.

Why put stage 4 cams on a GT35r equipped car?...So the motor can max out a GT35r at 29psi and have room to spare in case we went with something bigger, later :)

that mustang got smoked

swweeet....

wow thats pretty fast.

This is a vid. from the last car that did 467whp on the Gruppe-S dyno:
The first pass was crap...the second run was alittle better until the intercooler hose let go at around 800-850 ft...Note the 1/8 mile and 1/8 mile trap speeds..on the second pass.

http://www.daporkchop.com/host/mikesbucket.wmv

My car and Mikes' old setup are gonna be real close in the HP department...with my car having slighty more torque..500-600 less RPM but alittle better spool.

This should give some taste of what the car should be able to do...but we will be going to a faster track...and i should be able to drive the car somewhat better, i hope.

Why put stage 4 cams on a GT35r equipped car?...So the motor can max out a GT35r at 29psi and have room to spare in case we went with something bigger, later :)
THIS is the car that i'm in love with!!! What motor did it have, a 2.35L? And who built the motor?

THIS is the car that i'm in love with!!! What motor did it have, a 2.35L? And who built the motor?
2.35L
That bottom end has been sold and is now running around in a STI.
That car will be something else once the new motor/turbo go on :eek:

THIS is the car that i'm in love with!!! What motor did it have, a 2.35L? And who built the motor?


If I'm not mistaken, I think Mike told me Ron @ Axis built it.

looks like the 2.35s are becoming more and more popular, and the performance is outstanding I cant wait to see your times at the track. should be good for a low 11 or high 10 timeslip

Congratulations, Mike did a great job tuning the Element Hydra on your car. I know on this dyno those numbers are going to produce a very fast track time.

Come on guys we all know by now dyno numbers are like a box of chocolates, you never know what you’re going to get. :lol: In any event I’ve seen some mustang dynos read spot on, some 30 whp less, and others that were….well like this one. If you want to directly compare the “678 whp” car to this one I would say it would be equal when it hits about 508 whp. The car I tuned was put on the Buschar Racing Mustang which is also a heart breaker and it dynoed 508 whp. When I originally tuned the car on my local Dynajet it was around 594 whp and trapped at 135.5.

In regards to this car and the low torque you have to take into account the DPR STG4 cams. They are extremely aggressive and with larger valves on the heads you cannot really utilize the AVCS system much so spoolup and low end torque will suffer while top end torque will be superior.

Thanks,
Phil
http://www.elementtuning.com

2.35L
That bottom end has been sold and is now running around in a STI.
That car will be something else once the new motor/turbo go on :eek:

i hope i can break 460whp. i'll be getting an exedy soon.
10 seconds....here we come! :)

He doesn't need a new spring, he can plumb the AVC-R differently.

that's exactly what i was thinking.

:devil: ;)