[Land-speed] Crank balancing

John Burk joyseydevil at comcast.net
Sun Nov 28 17:24:38 MST 2010


Did I mention that in my opinion race engine crank balancing is a waste of
money for these reasons :

Production cranks like the 427 Chev I'm using are balanced only to keep it
from rattling the car . Look at the oversize end counterweights and they work
fine .

While the piston and rods are changing speed the crank is underbalanced . When
the piston speed is constant they're over balanced .

Crank balancers can't tell which part is off , only the average .

John Burk


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