Convertion from Wheels Power to Engine

ThomasMartin · 01-13-2008, 10:18 AM

Hey

Does anyone know the round about conversion from power on the wheels to engine output for the 335?

Thanks

Serjames · 01-13-2008, 10:20 AM

12.8 % for manual

15 % for auto

Seems to give the right figures - SJ

ThomasMartin · 01-13-2008, 10:25 AM

Quote:

Originally Posted by Serjames

12.8 % for manual

15 % for auto

Seems to give the right figures - SJ

Thanks

ThomasMartin · 01-13-2008, 10:28 AM

one more question

How would i convert WHP to KW.

Serjames · 01-13-2008, 10:33 AM

http://www.wentec.com/unipower/calculators/kw_hp.asp

not sure if that is imperial, metric, new HP or old, but it'll do for pub talk

SJ

p.s. keep you eye's peeled for dad's new db9, he's been poncing it around santon apparently, lol

M&M · 01-13-2008, 11:21 AM

Don't forget to add another 10% or so for altitude losses.

CokerRat · 01-13-2008, 11:24 AM

Quote:

Originally Posted by Serjames

http://www.wentec.com/unipower/calculators/kw_hp.asp

not sure if that is imperial, metric, new HP or old, but it'll do for pub talk

Heh. Just to clarify, as a measure of work over time, horsepower is horsepower. There is no new and old for the units themselves (unlike things like USgallons vs imperial gallons), but rather the testing and reporting methods. Read more about it here: http://en.wikipedia.org/wiki/Horsepo...ower_.28bhp.29

But once you have a value of horsepower, you can convert to kW by multiplying by 0.746.

hotrod182 · 01-13-2008, 11:33 AM

1 kilowatt=1.341022 HP
1HP=.7456999 kilowatt

01-13-2008, 10:18 AM	#1
ThomasMartin First Lieutenant 29 Rep 321 Posts Drives: BMW 335i Coupe Join Date: Jun 2007 Location: South Africa iTrader: (0)	Convertion from Wheels Power to Engine Hey Does anyone know the round about conversion from power on the wheels to engine output for the 335? Thanks
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01-13-2008, 10:20 AM	#2
Serjames Colonel 129 Rep 2,426 Posts Drives: E93 335i M-sport Join Date: May 2007 Location: Surrey - UK iTrader: (0) Garage List 2007 E93 335i M Spo ... [0.00] 2003 Nissan Primera S [0.00]	12.8 % for manual 15 % for auto Seems to give the right figures - SJ __________________
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01-13-2008, 10:28 AM	#4
ThomasMartin First Lieutenant 29 Rep 321 Posts Drives: BMW 335i Coupe Join Date: Jun 2007 Location: South Africa iTrader: (0)	one more question How would i convert WHP to KW.
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01-13-2008, 10:33 AM	#5
Serjames Colonel 129 Rep 2,426 Posts Drives: E93 335i M-sport Join Date: May 2007 Location: Surrey - UK iTrader: (0) Garage List 2007 E93 335i M Spo ... [0.00] 2003 Nissan Primera S [0.00]	http://www.wentec.com/unipower/calculators/kw_hp.asp not sure if that is imperial, metric, new HP or old, but it'll do for pub talk SJ p.s. keep you eye's peeled for dad's new db9, he's been poncing it around santon apparently, lol __________________
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01-13-2008, 11:21 AM	#6
M&M Captain 114 Rep 750 Posts Drives: Boosted Beemers! Join Date: Mar 2007 Location: Johannesburg, South Africa iTrader: (0)	Don't forget to add another 10% or so for altitude losses.
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01-13-2008, 11:33 AM	#8
hotrod182 . 875 Rep 3,993 Posts Drives: 2023 i4 M50 Join Date: Dec 2006 Location: California iTrader: (0)	1 kilowatt=1.341022 HP 1HP=.7456999 kilowatt
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