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Dave Plowman (News) Dave Plowman (News) is offline
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Default The physics of cars - a question sequence.

In article ,
Clive George wrote:
You jest, I assume? Read the vast number of posts which state this
happens at maximum BHP.


That's because when people are saying "max acceleration" they're not
saying "max acceleration in any one gear", they're saying "how to get
from one speed to a higher one the quickest".


Then they need to read the original thread that started this.

Do you agree that when the task is to get from one speed to a higher one
the quickest, max power is what you need to aim for, not max torque?


Aim for?

If you now want to talk about getting the best acceleration through the
gears, and where the best change up point is, it would depend on the
individual car and gear ratios. Some with a wide ratio box and not many
gears might get the best results by revving beyond peak power to get the
engine on a decent part of the torque curve on the higher gear. Some may
be better changing up at near enough max BHP.

But it's all about torque anyway. The amount of torque the engine is
producing at near peak revs to the amount it will be producing when you
change up. BHP is once again irrelevant.

--
*The closest I ever got to a 4.0 in school was my blood alcohol content*

Dave Plowman London SW
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