M113K crankshaft pulley
Crankshaft pulley for M113K
The crankshaft pulley permits to increase the amount of boost that the supercharger delivers to the engine. The larger is this pulley, the higher is the boost increase.
Available in different sizes, 165mm, 170mm, 175mm, 180mm, 185mm.
They pulley is made of steel, it has almost none belt slipping, what results in a stable boost increase, even on high RPMs.