Harmonic Damper (bhj dynamics)

Jimmee1990

Member
Apr 15, 2012
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Mount Dandenong
It actually does something to dampen the harmonic vibration present in Toyota's A series engines, solid alloy ones like T3 are terrible in my opinion. Bearings will last a lot longer and the car will be a lot happier at high rpm.

You would need a fairly serious engine to bother with it, a normal 4A-GE balancer would be fine for most people.