Originally posted by PatClarke:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">long stroke so that each power cycle produces a higher amount of torque
Diforesi,
Explain to me please how a long stroke engine produces more torque?

Pat </div></BLOCKQUOTE>
My understanding (possibly lacking and/or wrong) is that for one, the combustion pushes the piston for a longer amount of time. But, what I think is more significant is that by having a longer stroke, the journals are further from the center of the crankshaft, giving the piston/connecting rod more leverage. Because torque is rotational force, by having more leverage on the crankshaft it is easier to rotate, so there is more torque from a longer stroke.
Remember, these are the musings of a high school student, so some or all of it may be dead wrong.