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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > 2.5 Liter/Litre Factory Motor


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Old 09-26-2008, 07:16 PM   #1
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Default my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

mods:
Garrett GT30R .82 housing
Perrin rotated kit downpipe custom fabbed to fit 08 by extending a few inches
Perrin rotated kit uppipe for EWG
Tial 44mm EWG plumbed back into downpipe
Perrin Equal Length Headers
Power Enterprise 850cc injectors
Walbro 255 custom fabbed to fit 08 housing
Perrin FMIC
GST Motorsports modified boost tubes to fit GT30
GST Motorsports custom made blow through boost tube (Used my AMR intake for a MAF sensor for housing)
GST Motorsports custom made RCAI (real cold air intake )
K&N filter (same one that comes with AMR's intake)
Hallman Pro RX Manual Boost Controller
Group N motor mounts
NGK one step colder plugs
100 octane from the pump

Thanks to:
GST Motorsports for doing a sick ass job and then spending 5 hours to tune it, including hours on the dyno and datalogging on the street and then not making me go completely broke.
Perrin for answering my endless questions over AIM
My racing team OUT OF ORDER for setting the standard high as NorCal's fastest import team.










Basic stage 2 STis make anywhere from 250-270 on this dyno.


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Old 09-26-2008, 07:17 PM   #2
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

Holly cow, nice build and numbers!
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Old 09-26-2008, 07:31 PM   #3
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

Sick Car man, very nice numbers.

I can't open a magazine without seeing GST on the podium
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Old 09-26-2008, 07:35 PM   #4
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

awesome results, sounds like GST did a great job, congrats
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Old 09-26-2008, 07:36 PM   #5
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

Wow nice numbers glad to see some modded 08s.
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Old 09-26-2008, 07:47 PM   #6
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

OOO! Vroom!
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Old 09-26-2008, 07:50 PM   #7
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

I bet it pulls like a beast!!! I rode in my brothers 05sti with a gt35r which is putting down 450whp/4??wtq and that is almost to much power for me......
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Old 09-26-2008, 08:04 PM   #8
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

finally an 08 with some real power!!
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Old 09-26-2008, 08:20 PM   #9
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

What clutch are you using? At 360whp/381ftlb, I found the ACT Street Clutch to have sufficient holding ability (they advertise 515 ftlbs, at the crank of course), and it was nice to use (streetable). They also now have the XT series which allows higher clamping pressure for up to 566 ftlbs.
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Old 09-26-2008, 10:52 PM   #10
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

is all i gotta say
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Old 09-26-2008, 10:58 PM   #11
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

more stealth exterior pics from front side and rear kind sir
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Old 09-26-2008, 11:47 PM   #12
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

Quote:
Originally Posted by vhalin View Post
Basic stage 2 STis make anywhere from 250-270 on this dyno.
Man, that's pretty insane. My Stage 2 08 (DP only) made 265 HP on that dyno tuned for 91 octane. Mike is clearly one of the best and all the guys at GST are great to deal with.
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Old 09-27-2008, 12:19 AM   #13
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

are you planning to run 100 octane all the time? or did you get a 91 tune also? if so, what numbers did you put down on that?


J.
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Old 09-27-2008, 12:30 AM   #14
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

those are some good numbers for a mustang dyno....the other week I saw a 06 sti with a gt30R .82 been tune at a mustang dyno the car made like 330whp... I was like what the h..., my car put down 360 whp on the same dyno with a stock location turbo
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Old 09-27-2008, 12:37 AM   #15
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Default Re: my GT30R 2008 STI... 404whp/411wtq on a MUSTANG

What did you put down on real gas? AKA what are you driving around with? Surely not 100...


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