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All 240 ponies?

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Old Jun 26, 2007 | 10:21 AM
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Default All 240 ponies?
I am not too smart with cars.. but how come that I see dyno reports of base s2000's and they come up to about 180-200 horsepower? Why don't they all come up 240?

This website dyno'ed a 2001 Stock s2000 and came up with 198.1 horsepower. Do we lose horsepower overtime ?

Thanks!
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Old Jun 26, 2007 | 10:25 AM
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Originally Posted by Kenn,Jun 26 2007, 02:21 PM
I am not too smart with cars.. but how come that I see dyno reports of base s2000's and they come up to about 180-200 horsepower? Why don't they all come up 240?

This website dyno'ed a 2001 Stock s2000 and came up with 198.1 horsepower. Do we lose horsepower overtime ?

Thanks!
You are talking about two different things. The dyno is wheel horse power and the 240 hp rating is crank horse power.
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Old Jun 26, 2007 | 10:26 AM
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ooOooo no wonder. Do any machine's ever read crank horse power? And where is the power lost at? the tranny?
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Old Jun 26, 2007 | 10:26 AM
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You are comparing wheel horsepower (200) to engine horsepower (240).

And then to confuse you MORE, technically the AP2 (2004+) comes with 237, not 240 due to a change in the ratings system.
*AP2 Owners*
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Old Jun 26, 2007 | 10:27 AM
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Man i just graduated, no more numbers =D
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Old Jun 26, 2007 | 10:28 AM
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Originally Posted by Kenn,Jun 26 2007, 02:26 PM
ooOooo no wonder. Do any machine's ever read crank horse power? And where is the power lost at? the tranny?
The transfer of power through the drive shaft, differential, and into the wheels.
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Old Jun 26, 2007 | 10:29 AM
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What is more commonly refered to? The Wheel horse power or the crank horse power?
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Old Jun 26, 2007 | 10:32 AM
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Originally Posted by Kenn,Jun 26 2007, 02:29 PM
What is more commonly refered to? The Wheel horse power or the crank horse power?
whp = wheel horsepower is more commonly referenced.
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Old Jun 26, 2007 | 10:32 AM
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Originally Posted by Kenn,Jun 26 2007, 11:21 AM
This website dyno'ed a 2001 Stock s2000 and came up with 198.1 horsepower. Do we lose horsepower overtime ?

Thanks!
198X1.20=237.60 crank power
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Old Jun 26, 2007 | 10:33 AM
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woah more numbers! That x .20 a pretty good representation of crank power? or is it a general one?
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