8MM BELTS vs PULLEYS

Putting together a new combo, have 8mm 37 top and 74 bottom with 1600 belt, belt is about 2in to short. Should I be changing pulleys or longer belt, how small pulley can be run on top with PSI D Screw. Thanks Bruce.

 

belt

longer belt so you can run a larger bottom wheel .The psi likes od from what I have been told

 

Pulley

That gives you 100 over. You need to measure the distance between the center of the snout and the center of the crank. The 1600-200T belt is 62.99 inches. The 1792 224 T belt is 70.55 in. long. Call JR @ RBS. or Maybe Littlefield. They make all those pulleys. Do you have a angled pulley Bracket? That will give you more adjustment. I am assuming this is a Hemi. Good luck Don

 

Bruce, I ran a 33 and 74 on my D rotor setup with a 1600 belt. I run a 33 and 69 with the C.

 

we have been able to fit a 33/67 and a 33/69 with a mag cast manifold...with aj aluminum manifold bigger bottom will work