Thanks for the info Charles. Thos belt sizes you listed are exactly what I found to work the best. I am having some issues with the power steering pump though. I have a few questions for you.

1. Are you using the KA or SR power steering pump?

2. Do you have HICAS?

3. If you used the KA pump did you also use the KA bracket?

Here is why I am asking all of this.

I am building an S13 red top. It came with a HICAS pump which has a 4 ribbed pulley. So does the crank pulley. I got rid of the HICAS pump in favor of a non-HICAS pump that I bought used.

The non-HICAS pump and bracket fit perfectly onto the block. The non-HICAS pump came with a 3 ribbed pulley which is held on by a nut. The HICAS pulley was not held on with a nut. It looked to be pressed on.

I have a set of GReddy pulleys. The GReddy ps pulley has 4 ribs and is held on with a nut. When I install the GReddy PS pulley it sits too far toward the pump and the belt is at a very bad angle.

Thanks