Ovality and other guarded racing piston matters
Below their ring lands, pistons are neither round nor do they have parallel sides, instead they have a larger diameter towards the bottom, usually between the base of the piston and the piston pin hole, and become progressively smaller toward the top of the piston....
Torsional vibes break crankshafts! How could you identify them and, if necessary, eradicate them?
By: Bertie Scott Brown: Harmonic balancers dampen torsional crankshaft vibrations and they perform their function adequately on common engines. But if changes are made to the engine, particularly to a racing engine, harmony might be lost. For example, if engine...
Big plug gaps mean big power?
“The best way to ground for the benefit of the ignition,” explains Brock, “is to run an 18g or 14g wire from one cylinder head to the other and from there to a good chassis ground.
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