Originally Posted by parawxman
I'm looking at purchasing one of your 185mm pulley kits, but had a few questions regarding the balancer/pulley of these assemblies:
Is the pulley neutral balanced prior to being attached to the harmonic balancer, or is the assembly neutral balanced after being mated with the harmonic balancer? The pictures I've seen of just the pulley weren’t clear enough to show if the pulley was balanced.
The factory balancer/pulley is one piece and is thus a balanced assembly; but previously I’ve discovered unbalanced supercharger pulleys on my engines that were bolted to the front of the harmonic balancers ultimately contributing to the failure of the front main bearings. Similarly in the past I’ve installed crankshaft under drive accessory pulleys and ended up with an engine shake and a balancer hub oil leak.
I’ve heard that the red line of the supercharger is just less than 21,000 rpm. How much faster do your pulleys respectively spin the blower?
Thanks for your help
Henry
Henry, sorry for the delayed reply, been a very busy week...thanks for your question...
the pulley is both internally dampened and neutral balanced prior to attaching to the crank shaft...
the 185mm pulley (the biggest we offer) spins the blower at 19,250rpms, very safe buffer zone from the max rpm of the blower...
please let me know if you have any other questions...thanks!