On 30/03/16 16:54, Roger Mills wrote:
On 30/03/2016 00:30, Dave Plowman (News) wrote:



You get the best acceleration with the maximum torque *at the wheels*.
And in any given gear, this will be when the engine develops maximum
torque.


That is true of *that* gear at *that* road speed.

HOWEVER, the engine won't be developing its maximum power when running
at its max torque speed. So - at that roadspeed - you could actually get
*more* thrust and *more* acceleration by choosing a different gear which
allowed the engine to run at at its max power speed. The engine would be
producing less torque than in the first case, but this would be more
than offset by extra torque multiplication from the lower gearing.

Tell me, in your boy racer days, how did you decide when to change gear
in order to achieve the best possible 0-100 time?

Do you seriously think Dave ever did anything that much fun?



--
How fortunate for governments that the people they administer don't think.

Adolf Hitler