View Poll Results: HP -> Acceleration... not Torque!
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HP -> Acceleration... not Torque!
Registered User
Joined: Jul 2002
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From: mount airy
Destiny2002, I think I understand the dyno a little better (thanks). The thing is we are talking about is acceleration, and it seems that the ENGINE is only one factor, the gear ratio, transmission, and wheel size and weight (rotating mass) all have a role in acceleration.
BTW why do you think Honda doesn't put a 4.44 ratio in the S2000, except for gas mileage I can't think of a thing it does worse than the stock.
BTW why do you think Honda doesn't put a 4.44 ratio in the S2000, except for gas mileage I can't think of a thing it does worse than the stock.
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Joined: Jan 2002
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From: Redford, MI
[QUOTE]Originally posted by Destiny2002
[B]No, an engine can produce 20 ft*lb at the engine and 100ft*lb at the wheel.
Another engine can produce 200 ft*lb at the engine and 50 ft*lb at the wheel.
The engine producing more torque does not produce more acceleration in this case.
[B]No, an engine can produce 20 ft*lb at the engine and 100ft*lb at the wheel.
Another engine can produce 200 ft*lb at the engine and 50 ft*lb at the wheel.
The engine producing more torque does not produce more acceleration in this case.
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Joined: Jan 2002
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From: Redford, MI
Originally posted by Destiny2002
No, in this case engine torque was not changed, gearing was.
(When somebody says "torque" without qualifying where the torque is measured, it's assumed to be at the crankshaft)
No, in this case engine torque was not changed, gearing was.
(When somebody says "torque" without qualifying where the torque is measured, it's assumed to be at the crankshaft)
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Joined: Jan 2002
Posts: 250
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From: Redford, MI
Originally posted by Destiny2002
You change gear ratio from 4.1 to 4.4.
Acceleration increased.
Engine power did not change.
Engine torque did not change.
Wheel power did not change.
Wheel torque increased.
Hence, Torque -> Acceleration... not HP!