Quote:
Originally Posted by pete c
there is another reason a long rod helps. (insert obligatory tasteless joke here) it decreases the side load on the piston when the crank is at 3 and 9 o'clock. These side loads play hell on the piston meaning it has to be bigger with short stroke engines.
so, when power to weight ratio is concern number 1 as with a MC, sports car or aircraft, light compact short strokers are the way to go, but, they will be less efficient.
stationary engines should have very over square engines as weight is of no concern.
high efficiency vehicles will likely be something somewhere in the middle, probably a little oversquare, ideally.
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you confusing rod length and stroke. different things.