Horse Power and its Effectiveness

[Clive Apps Techno-Logicals 416 510 0020]

> 
> 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


Clive