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Old 11-10-2004, 09:12 PM   #16
Mystikal
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Quote:
Originally Posted by BS87
I dont have any idea where you people are getting that built M20s are putting down 200-300 rwhp. Chris's 3.0 cabrio only puts down what, like 200-220? And thats about as extreme as you want to go.
We're talking built S14's, read again.
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Old 11-10-2004, 10:26 PM   #17
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Sorry, when someone refered to a built 2.5, i had M20B25 on my mind.
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Old 11-11-2004, 10:45 AM   #18
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Originally Posted by bmnorm
Hey guys, how hard is it to get 200Hp to the wheels from am e30 m3.
How much would it cost? What kind of things do you have to do?
Doesn't the e30 M3 have over 200 hp...I thought it was like 212 hp, and 242 for the SportEvo M3.
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Old 11-11-2004, 12:34 PM   #19
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At the wheels, not fake HP.
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Old 11-12-2004, 02:53 PM   #20
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At the wheels, not fake HP.
ahhhh, that's what I kinda figured. So, does the "b" in bhp mean "boasted" hp or "braking" hp
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Old 11-13-2004, 03:05 PM   #21
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Don't quote me on this, but I heard most cars have 6-10% less at the wheels than posted by the manufacturer. A simple rule of thumb.
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Old 11-13-2004, 03:50 PM   #22
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Quote:
Originally Posted by ara325
ahhhh, that's what I kinda figured. So, does the "b" in bhp mean "boasted" hp or "braking" hp
Quote:
Originally Posted by Mtl_e30M3
Don't quote me on this, but I heard most cars have 6-10% less at the wheels than posted by the manufacturer. A simple rule of thumb.
BHP is horse power measured at the crankshaft. This is actual power produced by the engine.

RWHP is horse power measured at the rear wheels. This is what you get on a car dyno.

Between the crankshaft and the rear wheels HP is used to spin the flywheel, clutch, gearbox, driveshaft, diff, halfshafts etc. Different cars have different amounts of driveline loss. A stock e30 is in the area of 12-15%.
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Old 11-13-2004, 03:55 PM   #23
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ahhhh, that's what I kinda figured. So, does the "b" in bhp mean "boasted" hp or "braking" hp
boasted.. ahahaha..
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Old 11-14-2004, 02:20 AM   #24
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bhp, is "Brake Horse Power" an old english way of measuring horsepower at the flywheel and the format stayed with us to this day.
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Old 11-14-2004, 10:13 AM   #25
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wicked, thanks.

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