Quote:
Originally Posted by FatBoy Changing your crank pulley for a smaller one will slow down your water pump and alternator, not speed them up. 
You either need a larger crank pulley, or smaller water pump and alternator pulleys.
Paul |
It also will lessing the horsepower it takes to rotate the water pump an alt.
Normally with an FE the water pump pulley is a little larger.
To speed up the water pump they reduce the size of the water pump to a 1:1 ratio.
But with a smaller crank pulley and water pump pulley it also speeds everything up a little.
If you look at the pulleys in my picture the crank pulley and the water pump pulley are the same size but both are smaller than the stock pulleys.