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140rwkw is normal for those mods. Some cases have seen 155 with aftermarket pump and reg and boost at 11 so I would not be concerned.

I noticed someone mentioned tyres slipping on dyno rollers.....bwahahahahahahahahaha!!!!!!!

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I just put my car on the dyno, running stock exhaust, AM pod filter and 10PSI, with faulty coils and pulled out 150rwkw  <_<

Okay so dynos arent the same, cos i made that figure (or at least a bees dick away from it) with only 7psi.

i drive an r33 gtst, i've got a 3" turbo back (1 piece dump and front pipie), fmic, pod running 10psi.

im not sure what to expect.. maybe around 150rwkw... is that realistic?

would a dump pipe with the exhaust and wastegate seperated give me better power?

ive heard about 3.5inch cats with 3" reducers.. would this also give me more power?

im thinking of getting a t3/4.. would i need bigger injectors and aftermarket ecu or could i just use an safc2?

sorry about the hijack. its all relevant! :D

From every source I know, 30% loss through the drivetrain is commonly accepted.. so 200atfw = 132rwkw! Of course, the 33% may be more acceptable in typical passenger cars, not sure about Skylines and such that are more likely to have lower weight drivetrain etc in stock form

I wouldn't worry so much about the figure, dyno's are only a tool for tuning. If it's tuned properly a car will still run the same time where it counts, on the big black strip! Regardless of hp readings.

That said, every dyno is different. I know of a S/C BMW that pulled higher readouts before and after on the owner's "dyno" that he used than it did on the workshops.

Before it was 10kw higher at the wheels.

After it was 40kw higher. I've seen both the dyno sheets. Same car no other modifications. You can bet which one the owner always claims it makes.

That said, your runs are in 3rd gear. It'd be interesting to see what power differences people are getting with 4th gear runs or their 1:1 gear.

Edited by 1q2w3e4r

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