I am purchasing a vortech v-3 sci supercharger kit for my ride and it has underdrive pulleys on the engine will i have to change the crank pulley back to the stock pulley? or will this have no effect on boost,i am new to the supercharger stuff.
it does but it bolts to the other crank pulley on the engine because the supercharger runs on its own belt.and i do believe the crank pulley is smaller on the underdrive pulley kits that u buy.
I went back to the stock pulley sizes when I installed my blower,think you'll have to,wouldn't want to slow down the water pump with the increased heat of the blower.The crank pulley is a 1 piece unit.Not sure how it would work with underdrive water pump and alt pulleys.Just installed an alum radiator and 3" cowl hood and it runs alot cooler already.