Whp vs. Engine hp?

Red__Zed · 05-11-2011, 09:05 PM

Quote:

Originally Posted by b1adesofcha0s

You can be an honorary asian <3

Cmike2780 · 05-11-2011, 10:56 PM

Quote:

Originally Posted by phelan

i heard there was math in here. need another asian?

Maybe....but we're short on pillows. Could you spare some?

KaienZ34 · 05-12-2011, 01:02 AM

He is greedy when it comes to those damn pillows.

BrianMSmith · 05-15-2011, 08:33 PM

The claimed engine power is not always accurrate, can be much higher, sometimes lower. Most cars will lose 12-18% through the drivetrain, 15% on average.

KaienZ34 · 05-15-2011, 09:23 PM

They don't test every motor, the 332 is an average.

UNKNOWN_370 · 05-15-2011, 11:21 PM

Quote:

Originally Posted by m4a1mustang

Converting from whp to bhp always involves some fuzzy math, but we can assume on a Dynojet the average 370 loses about 17% of its power through the driveline in stock form.

But this number can change from day to day and especially dyno to dyno.

If 17% is the magic number? That means the Z is overrated. Crank to wheels its supposed be 15%. I'm guessing the british 326hp at the crank is the right number???

Very interesting. The genesis coupe 3.8, is underrated by 20hp. It runs 306 but runs about 280hp at the wheels. We run 326 at the crank as well. Crazy how much faster we are considering realistically, we are running the same exact power.

Kingbaby · 05-15-2011, 11:28 PM

Well! Glad we all had this discussion!

/thread

Red__Zed · 05-15-2011, 11:38 PM

Quote:

Originally Posted by UNKNOWN_370

If 17% is the magic number? That means the Z is overrated. Crank to wheels its supposed be 15%. I'm guessing the british 326hp at the crank is the right number???

Very interesting. The genesis coupe 3.8, is underrated by 20hp. It runs 306 but runs about 280hp at the wheels. We run 326 at the crank as well. Crazy how much faster we are considering realistically, we are running the same exact power.

The Z has a very inefficient drivetrain, hence higher loss.

05-12-2011, 01:02 AM	#78 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 178	He is greedy when it comes to those damn pillows. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

05-15-2011, 09:23 PM	#80 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 178	They don't test every motor, the 332 is an average. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

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05-15-2011, 08:33 PM	#79 (permalink)
BrianMSmith Enthusiast Member Join Date: Dec 2009 Location: secret Posts: 267 Drives: 370Z, Ducati 748S Rep Power: 16	The claimed engine power is not always accurrate, can be much higher, sometimes lower. Most cars will lose 12-18% through the drivetrain, 15% on average.