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AR
25-08-2009, 10:46 PM
Equation #2:
Calculating BHP
Manuals
BHP = WHP / (0.83 to 0.85)
Automatics
BHP = WHP / (0.75 to 0.80)

amo
25-08-2009, 10:50 PM
mmmmmmmmmmm im lost
thx amo

Sudesh
25-08-2009, 11:05 PM
Ary,

I take it your referring to Wheel Horse Power [WHP]

AR
25-08-2009, 11:10 PM
Mate as Alexander the Meerkat says:

Simples Eeek

http://www.dailyecho.co.uk/resources/images/858743/?type=display

BHP ( at the Fly ) equals WHP ( at the wheels ) divided by the correction factor.

I picked it up from a Supra forum, I think the NSX loses are less than 15%.

Cheers,

Ary

Sudesh
25-08-2009, 11:27 PM
Mate as Alexander the Meerkat says:

Simples Eeek

http://www.dailyecho.co.uk/resources/images/858743/?type=display

BHP ( at the Fly ) equals WHP ( at the wheels ) divided by the correction factor.

I picked it up from a Supra forum, I think the NSX loses are less than 15%.

Cheers,

Ary

lol!! Mr Meerkat lol

I think the standard is 15% that most go by, rolling road Ary!

NoelWatson
26-08-2009, 08:09 AM
I think the NSX loses are less than 15%.



How do you know?

vtecdirect
26-08-2009, 08:20 AM
Guys, flywheel figures quoted at rolling roads are just guesswork and a bad one in most cases. Unless you a have a very experienced rr operator with a lot of time and mathematical and physics knowledge.
The ONLY thing measured by a rolling road is torque, this is a fact. From that torque a whp figure can be calculated using a formula which is,
torque X RPM / 5252= WHP. This whp figure is then used via run down transmission losses, which are inherently flawed, to calculate flywheel figures.
the only way to get flywheel figures is to remove the engine and have it bolted to an engine dyno.