Quote:
Originally Posted by CHANMADD
The ratio between the crank stroke and the rod length is ,my friend, very important.
If the angle of the rod is to acute the rod will go through the cylinder wall at great speed and leave you on the side of the road!!!...
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Oh horse poop, my friend.
If you carry any argument to the ridiculous extreme you can prove anything.
This, I think, is a reality based board. No one in the industry has a piston forging long enough to allow that scenario.....so I won't sweat it.
Rod ratio is not a consideration when designing a combination unless there is a serious mismatch between the engine and cylinder head sizes.
351C and BB Chevy have short rods....big head, little motor. BB Chrysler has a long rod.......big motor, little head.
I doesn't really matter even then but the rest of the time, pick a rod, it's all good.
Rod ratio is the least important piece of folklore to consider when building an engine.