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Old 06-24-2007, 06:26 PM   #1
2007scooby
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Default 400whp on pump?

looking for a new turbo setup with all the suuporting mods.

i was looking for something with quick spool for track/auto x purposes.
i read up on forced performance,APS, and garret applications. i was looking into the fp green, but i read that on pump its on the harder side to reach 400 wheel. i'm also looking into the fp red, aps sr55/56, or the gt30r. i was looking more into the gt35r and sr56. i've done quite a bit of reading but can't seem to decide. i was hoping to get some insight to further help my decision. suggestions or help anyone?
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Old 06-24-2007, 07:39 PM   #2
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with water/mathanol injection, i bet you can hit 400whp on the Green.

You likely won't be winning anything with a GT35R on an autocross setting.

You need to figure out what exactly you want out of your car.
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Old 06-24-2007, 08:01 PM   #3
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If you want a great auto-x car with 400 whp I'd suggest an LS2 vette.
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Old 06-24-2007, 08:58 PM   #4
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my old setup of a gt30 .82 ar put down 402 on 93oct and coul have been about 420 with a bit more tuning.
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Old 06-24-2007, 08:59 PM   #5
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on a mustang dyno (heartbreaker), you might get near 400whp with a fpGreen, all supporting mods including a FMIC, and definitely needing a meth injection kit, otherwise, no you won't come close to that without meth. Search my posts, I hit ~370whp on a fpgreen 3"/8cm with bigger TMIC and Perrin/Aquamist injection running 50:50 mix. This set up is supposed to give a 'quicker' response with less lag, but honestly, there is still some lag there.
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Old 06-24-2007, 09:33 PM   #6
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Go search - You won't find 10 cars making 400 on a standard reading dyno. On a very high reading dyno, yes.
My car made 379whp/412 wtq on ICS's dyno, which reads 225-230 for a stock sti. That was with Sz49, EWG, alchy, FMIC, blah blah blah. That last 20 hp is hard to get.

What doctorSubie reports above sounds exactly like my results. His are a touch lower due to the dyno, but I'd imagine the cars are about dead even.

Want 400 consistently? GT30R .82.
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Old 06-24-2007, 11:27 PM   #7
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thats why I stated go with a gt30 for 400+ like I said all i used was 93oct no meth or anything. and it was on a dynamite dyno so its not the higher reading 1's either
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Old 06-25-2007, 12:05 AM   #8
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IMO 30R would be your best bet, you'll hit damn near 400whp on pump.. And if you ever decide you want more power down the road you're a race gas tune away from another ~80whp... I run the bigger .82 hotside and i hit full boost a bit before 4K in 4th gear, it's a very responsive turbo for the size IMO..
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Old 06-25-2007, 03:13 AM   #9
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if your looking for a stock mounted turbo. a sr56 could possibly get you there on a mustang. i hit 380 on 94 at 19 psi with an sr55. 22-23 psi it's possible on pump. but if you want to make it there for sure on a stock mounted turbo, it will have to be a red.
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Old 06-25-2007, 10:14 AM   #10
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Old 06-25-2007, 11:01 AM   #11
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well of ran autocross or track car with smooth power delivery if you're deadset on 400whp i'd start looking twinscroll, either gt3076 or VF42

staying single scroll i'd look into a s52 through element
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Old 06-25-2007, 03:45 PM   #12
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Quote:
Originally Posted by Zornorph View Post
Go search - You won't find 10 cars making 400 on a standard reading dyno. On a very high reading dyno, yes.
My car made 379whp/412 wtq on ICS's dyno, which reads 225-230 for a stock sti. That was with Sz49, EWG, alchy, FMIC, blah blah blah. That last 20 hp is hard to get.

What doctorSubie reports above sounds exactly like my results. His are a touch lower due to the dyno, but I'd imagine the cars are about dead even.

Want 400 consistently? GT30R .82.


i'm drifting more towards the gt30r, seems like its the right turbo for the power i'm looking for and what i'm using it for. i'll definately do some reading. i guess i was trying to say i wanted to reach 400 wheel and at the same time keeping reliability. i know its a stretch, but thats what i'm looking for. so for now i'll do some research on vendors for a nice gt30, anyone with information on a similar turbo for my car that could also suit my needs stated above is welcome to say so.

thanks everone for the help.
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Old 06-25-2007, 07:00 PM   #13
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Quote:
Originally Posted by 2007scooby View Post
i'm drifting more towards the gt30r, seems like its the right turbo for the power i'm looking for and what i'm using it for. i'll definately do some reading. i guess i was trying to say i wanted to reach 400 wheel and at the same time keeping reliability. i know its a stretch, but thats what i'm looking for. so for now i'll do some research on vendors for a nice gt30, anyone with information on a similar turbo for my car that could also suit my needs stated above is welcome to say so.

thanks everone for the help.
Unless you reverse your manifold, I think a GT30R is too laggy for auto-x

I would get the smallest turbo that would hit 400whp on meth injection. Maybe a TD05-20g with an EWG and meth.
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Old 06-25-2007, 07:54 PM   #14
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Quote:
Originally Posted by keaniegenie View Post
Unless you reverse your manifold, I think a GT30R is too laggy for auto-x

I would get the smallest turbo that would hit 400whp on meth injection. Maybe a TD05-20g with an EWG and meth.

yea thats what i do worry about, the search still doesn continue. i might do the fpgreen and settle with the best i can closest to 400 wheel.

thats one of the problems with the gt30. the power band isn't that bad, the problem with the fp is for some reason i see so many people barely breakin 320 wheel on the fp when i can get over 300 wheel with my stock vf43. i guess the search continues. i'm in no hurry, 400wheel on pump is still what i'm looking for. anything besides gt30, fp green or red?
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Old 06-25-2007, 07:58 PM   #15
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Full-race GT30R Twin Scroll kit with a Spearco TMIC would work for AutoX, IMO. I just need to figure out a way to ... uhhh ... un-rotate it. That's what I plan on getting when I get the money to finish my SM car.
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Old 06-25-2007, 08:05 PM   #16
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^that's my plan! Why unrotate? to use the TMIC? I bet it can be done - worst case - custom infeed pipes.
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Old 06-25-2007, 08:06 PM   #17
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Quote:
Originally Posted by keaniegenie View Post
I would get the smallest turbo that would hit 400whp on meth injection...
Water injection, yeah, but is meth injection even legal in Auto-X?
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Old 06-25-2007, 08:10 PM   #18
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Quote:
Originally Posted by Zornorph View Post
^that's my plan! Why unrotate? to use the TMIC? I bet it can be done - worst case - custom infeed pipes.
yes and yes.
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Old 06-25-2007, 08:52 PM   #19
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Quote:
Originally Posted by flycaster View Post
Water injection, yeah, but is meth injection even legal in Auto-X?
You're correct, Meth injection is illegal. Water is legal. And while we're at it, so are FMICs that remove, replace, or require significant cutting of the bumper.
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Old 06-25-2007, 08:59 PM   #20
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I have never, not once seen a 400whp STI run decent times at an autocross.
99% of the time those guys would have been MUCH better off with 320whp and the rest of the money invested in suspension, tires and driver school (evolution school does more for your lap times than adding 50hp in 90% of cases)
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Old 06-25-2007, 09:36 PM   #21
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Quote:
Originally Posted by Davenow View Post
I have never, not once seen a 400whp STI run decent times at an autocross.
99% of the time those guys would have been MUCH better off with 320whp and the rest of the money invested in suspension, tires and driver school (evolution school does more for your lap times than adding 50hp in 90% of cases)
but the combination of both =

But I agree, suspension first. That's why my next mods will be coilovers and sway bars. If his priority is power first, then he's still wise to plan for his goals.
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Old 06-26-2007, 12:10 AM   #22
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power isn't exactly my goal, i havn't done much mods on my car besides suspension. i figured i'd read up and get some insight on a new turbo set up thats all. i tink i've decided to go with the green. a bit larger than the stock vf43 and has substantially better gains than stock and at the same time has very respectable spool up. i'm not trying to make A LOT of hp, 400 just seemed like a good number to shoot for since i'm already at 300 wheel on my vf43 . maybe i should invest some of that money in a camera and scanner so i can actually post pics on here. i havn't posted one dam pic since i joined. i know i know, the pictures will bei n shortly
in the mean time i'll catch up on some reading on the green and gt30r.
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Old 06-28-2007, 02:19 PM   #23
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FYI

reading this thread answered many of my questions

i too am looking for 400WHP.....

Thanks for the info !!! :-)
seems like GT30r or 35r is the way to go, im not doing auto x just Daily driver and occasional 1/4 mile run.

Last edited by 30 psi; 06-28-2007 at 05:54 PM.
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Old 06-30-2007, 01:38 AM   #24
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Don't mean to thread jack, but I found this thread REALLY informing and interesting. NOW TO THE POINT. I am looking at purchasing a STI, thing is, that it has GT30r upgrade with 400whp capabilities but is on a conservative tune at 330whp. I am hoping to purchase this car or purchase a stock car and make it like this. (WHP wise) I drive like a grandma daily about 20-30 miles a day,(job is 10miles away). I am anal about keeping my car up with maintanence, etc. So that won't be a problem. I just wanted to know your guys/gals honest opinions if it would be a good idea to mod an STI to that point of 330whp. Since it would be my ONLY means of transportation and I am looking for durability and dependability. I am hoping for around 4 years or around 100,000 miles on the engine.. Do you think this is possible? I know that the previous owner will have a lot to do with it but I will be doing things such as compression check, etc to ensure that the car isnt going to die in a yr, or two. Any responses would be GREATLY appreciated since I want some opinions but the community that mods this particular car the most.

CHEERS
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Old 06-30-2007, 04:32 AM   #25
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Ttt!!!
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