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alex_s3
June 13th, 2006, 22:06
Hi, how many horsepowers do the RS4 have?

420 or 414hp?

I have read diffrent, so I'm not sure..:vhmmm:

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Alex

Leadfoot
June 13th, 2006, 22:15
Originally posted by alex_s3
Hi, how many horsepowers do the RS4 have?

420 or 414hp?

I have read diffrent, so I'm not sure..:vhmmm:

-
Alex

420ps (German measurement) = 414bhp (Imperial measurement)

Someone better than me, will explain the difference between what each one means.:vhmmm:

Basically I think the first one is now used because it makes the amount of power look bigger.

BigRick
June 14th, 2006, 00:09
<I>HP is the "general" term. INDICATED horse power is the theoretical horse power that an engine can produce. BRAKE horse power equals the Theoretical HP minus the internal friction (power loss).

So.... BHP is really the HP available at the crank. For all intents and purposes, HP and BHP mean the same thing when talking about it or reading it in mags.

Rear Wheel Horse Power (RWHP) is, as the name suggests, how much HP actually gets to the tarmac after power is lost through the gears, tranny oil, chain, etc. RWHP is really the best realistic measure of HP in real world terms.</I>

Got that from another site.

And here's a nice page about the subject: http://www.offroaders.com/info/tech-corner/reading/horsepower-torque.htm
Even have some info about torque, which is another number to take into account!

India Whiskey Charlie
June 14th, 2006, 00:43
Originally posted by alex_s3
Hi, how many horsepowers do the RS4 have?

420 or 414hp?
420 HP DIN x 0.986 = 414 HP SAE

DIN: Deutsches Institut für Normung
SAE: Society of Automotive Engineers

alex_s3
June 14th, 2006, 10:14
Thanks for answers :)