Calculating HP at the crank

Going by (SAE corrected) dynojet numbers, which have very little variance from shop to shop, and data I've acquired from half a dozen VQ37HR's... ***Dynojet derived whp and drivetrain loss***

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
Calculating HP at the crank

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04-25-2012, 11:59 PM	#8 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 419	Going by (SAE corrected) dynojet numbers, which have very little variance from shop to shop, and data I've acquired from half a dozen VQ37HR's... *Dynojet derived whp and drivetrain loss* Average power for 370Z or G37: 273 +/-5 Average power for Nismo version: 290 +/-5 Drive train losses for both AT and MT appear to be between 16.5% and 17.5% So... if you want to get a good (SAE corrected, dnyojet based) estimate, take what your car puts down (on a dynojet) and divide by either .835 or .825. So, if you make 300 whp on a dynojet with SAE correction, it makes (probably) somewhere around 359 - 363 bhp. Mothra108 likes this. __________________ Enjoy it. Destroy it.

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