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Discussion Starter · #1 ·
mk4 supra tt (auto) i really wana know now when i have downpipe, exhaust, airfilter, manual greddy boost controller, intercooler and cam gear too .... how much boost power i can raise to and how much hp i gain when the boost is up level max without harming the engine sorry about this beacause we dont have dyno in our country so can i know the details plz
 

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FUCK JDM
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3,932 Posts
15 is safey, 18-19psi is fine as well but will shorten the life of your turbos.. some use race gas 21psi at the track, but its already at its max efficientcy
 

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Premium Member
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5,382 Posts
First question: Is your car Jap-spec or Euro- or US-spec?

You will not make as much power with the Jap-spec car than the Euro or US-spec cars because of smaller turbos and milder camshafts.

Do you have access to racegas or Toluene?

Without racegas your car will probably make about 370rwhp at 17psi (dont boost more without racegas, you can destroy your engine in long highway pulls because the engine will start to detonte.)

With racegas you can be making around 420rwhp at 19psi if your car is strong, that should be enough to hang, or even beat a Z06.

Krister
 
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