Horse Power and its Effectiveness

[Greg Hermann]

>>
>> A few comments:
>>
>> For a given displacement, long stroke means small bore means less force.
>> This exactly balances out the longer moment arm.  Long stroke motors have a
>> harder time at high revs (due to both inertia and limited breathing) but
>> they offer no advantage in low speed torque.
>>
>> Diesel engines make less torque than gas engines (naturally aspirated).
>> Their advantage is the BMEP is not limited by detonation so they can take
>> gobs of boost.
>>
>> torque(ft-lb) = hp at 5252 rpm (63024 for in-lb) which is 33000/(2*pi).  A
>> hp is defined as 33000 in-lb per minute.
>
>
>that should be ft-lbs

OR--72000 stone furlongs per fortnight--- :-)

Greg
>
>
>Clive