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Balancing food for thought... Overbalance

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Pablo

Active Member
Joined
Sep 12, 2004
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"The use of nitrous oxide, superchargers, or turbo chargers typically also requires a certain amount of overbalance. Using nitro methane in conjunction with a blower is likely the worse case scenario as cylinder pressures are extremely high under detonation which artificially increases the piston weight by a more than a normal amount. Any form of blown engine will benefit from a given amount of overbalance simply due to the weight of the piston averaging artificially heavier not only from the increase in cylinder pressure at ignition, but the increase in cylinder pressure taking place while the cylinder is also filling during the intake stroke. In this instance, the piston is averaging an overall heavier weight when running at speed"

Eaton Balancing | www.eatonbalancing.com article series about balancing at right


Considering that our engines are extremely underbalanced from the factory, I wonder if its coincidental that cranks and maincaps are departing from our blocks with some regularity.

It probably doesn't help that we don't have a damper either.
 
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