Why not a Webra engines thread?
07-31-2022, 10:39 AM
#376
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Ballance
Does anybody know the reciprocating to rotational ratio that was used for the balance of a speed 61? I'm guessing somewhere between 50 to 60%.
I know it's a deep question, but I thought I would give it a shot.
Thank You
I know it's a deep question, but I thought I would give it a shot.
Thank You
07-31-2022, 12:20 PM
#377
Not familiar with that ratio... All I know is that usually the balance weight is calculated to balance out the weight of the piston and 2/3rd the weight of the rod (2/3rd of the rod is considered reciprocating mass, the last third is considered rotational mass.
But that is from long ago in school, and a general rule of thumb.
But that is from long ago in school, and a general rule of thumb.
