the pulley is 4", cant remember the size of the belt. Before I had to remove the idler pulley on the procharger bracket to get the belt on. I may get a piece of rope and wrap it around to see what size belt is needed

 

Is there a stock tensioner that I could use that would be better than the one I have?

 

Surprisingly my stock tensioner has done excellent. Try a gates k061120 it is 112 1/2 or the next size smaller.

 

How are you installing the belt? I rap all the pulleys except the waterpump since it has no ribs and a slight taper to help get the belt on. Doing it this way will get allow you to install the shortest belt possible.

 

What the heck does that 3/0 Red wire go to? Flux capacitor?

 

Here's the tensioner looking from the passenger side.

 

My belt is about 115". Can't go any smaller. There's only about 1/8 turn on the tensioner

 

Thats weird, I am running a size smaller then the number I gave you, it was tight but went on. I am running the same belt I had when I had my p1, with a 3.5 or 6 pulley. But i did reconfigure my idlers( old style bracket) Still 3'' diff.

 

I have the redesigned bracket. And a 130a alternator.

 

So I'm still having fueling issues. At 5600 the fuel pressure bounces between 65 and 45 and at 5700 I go into rep.