Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

300whp or more possible from a vf39?

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Old Feb 24, 2005 | 11:49 PM
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xicema17x's Avatar
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Car Info: 71 rb26 240z
300whp or more possible from a vf39?

I have a catless TBE right now and hoping to get headers and EM. Is there a chance that i can get 300whp or more out of my stock turbo with good tuning?

-jason
Old Feb 24, 2005 | 11:59 PM
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Car Info: 2007 suzuki GSX-R600
Originally Posted by xicema17x
I have a catless TBE right now and hoping to get headers and EM. Is there a chance that i can get 300whp or more out of my stock turbo with good tuning?

-jason
yah many people have done this already.
Old Feb 25, 2005 | 12:08 AM
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On a high reading dyno it has been done.
Old Feb 26, 2005 | 08:30 PM
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Originally Posted by BAN SUVS
On a high reading dyno it has been done.

Or on a dyno who is read by someone who is high!

Just kidding.......I agree with above. On the mustang at Subaru Specialists Nate got over 300 tq with my car's stock turbo, injectors, GT spec headers and Invidia Turbo back. WHP was around 270.
Old Mar 9, 2005 | 01:05 AM
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Originally Posted by BAN SUVS
On a high reading dyno it has been done.
I beg to differ!!!

it is possible...but that's about all she's got!!
Old Mar 9, 2005 | 01:11 AM
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Yeah that's definitely maxed, but I guarantee a well-tuned STi with a turboback will make 300 whp at ATP for instance.
Old Mar 9, 2005 | 08:38 AM
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The bad part, is that the car will make that 300whp on a vf39 PEAK, but by the time redline swings by, the turbo has long since ran out of breath.....its normal to see a car drop 30-50 hp from peak to redline on a STI .
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