100hp / Liter

Pelican170

Ive read in the past that the difference from WHP to Crank HP is about 15%. So i would think that if you dyno at 315 whp, that would be around the 370 crank HP.. of course as mentioned all dynos are different and a Dynojet will read higher than Mustang dynos as well, so who knows if it is ever accurate. But then again, how do they agree upon the 370z have 331 hp in the first place??

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Jordo!

Not necessisarily... all depends how they calibrate it. They can "break hearts" or "lift spirits" depending on the settings.

Presumably, on an engine dyno.

Then we might wonder whether they're claiming ps units (probably) or hp units, which is a bit different (ps units are a few % lower).

Then again, there's usually additional fudge factors either to round up (selling point) or under rate (happier customers when they go to chassis dynos) that are applied behind the scenes.

Only way to really know is to break-in the motor, make sure all is good, remove it and put it on an engine dyno.

Oh, and it's allegedly 332 bhp

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Pelican170

whoops lol. Anyway, from what ive heard there is a 15% loss from whp to crank. so 370 crank hp i dont see too hard to get to... I mean, if the nismo has 350 stock, and you add the standard bolt ons, i would think it would be over this mark. (This is not a nismo vs .... thread. I just used the nismo cuz it is closer to the 370 hp mark...)

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Cmike2780

True, although your gains with the same bolt-on's on a Nismo will be less. Switching over to a Stillen CBE on a Nismo for example, won't gain you another 18rwhp over a stock Nismo. For the most part, the Nismo just has a better flowing exhaust and engine tuning.

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Pelican170

Yes, i agree. But i have also been told that the nismo exhaust only accounts for 5 hp of the 18, the rest being the tune, so back out 5 HP from the equation...

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Cmike2780

Yes, but is that 5hp rwhp or @ the crank? not that it really matters.

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VQStryker

It does, whp is what your actually using (wheel horse power)

Pelican170

Thought it was Whp but was a little while since that convo, either way, if it was 15% of 5 isnt much, +/- 0.75 hp.. and yes your right, doesnt really matter lol

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