Quote:
Originally Posted by Ecky
I've read that a long stroke relative to rod length increases stress on certain engine components. Does this mean that it increases friction?
Are we talking rod/stroke ratio, or absolute stroke length? Can you have a good rod/stroke ratio and still approach an "ideal" stroke length simply by building a bigger engine?
Also, why does increased stroke length increase efficiency anyway?
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Always a trade off in reciprocating engines. Longer rods and longer stroke generally give you more torque at lower RPM, but also increase reciprocating mass which will reduce efficiency.
I think the 225 Chrysler slant 6 had a 3.5 inch bore and a 4.5 inch stroke.
regards
Mech