new belt... idler pulley from a focus and about 3 hours time to pull everything clean it up drill one hole go back n forth to auto parts store and get the right size belt.

before


and after


no more belt slip at all

belt was about 25 bucks and pulley was 26 from ford i believe

 

http://www.oreillyauto.com/site/c/de...?keyword=ys298

forgot the length of the belt but it was 1 inch longer than stock. i think 75.5" belt

 

Good job, lots of belt wrap!

 

what'd you use behind the pulley to space it off the bracket??

 

Me also wants to know.......

 

Washers and a good fitting bolt would do it with that minimal distance on a smooth pulley.

 

FINALLY got this mod done to my Procharger and man did it need it. I have to get the truck completely retuned cause the D1SC was slipping sooner than was thought. It was supposed to be tuned up to 5 grand, but its not safe over 4 thsnd. Guess its time to find someone who can tune this thing up to 6 grand at least now that D1SC is working properly.

 

I guess you could. We didn't use theirs because price was a lot higher, and didn't have to be exactly perfect being on the flat side of the belt. So far no slippage up to 12 lbs of boost. Tuner wants 15 lbs at least. Just crossing my fingers.

 

BTW we put the idler pulley even closer than Faster150 put his. Didn't want to take any chances as bad as it was slipping before.

 

Don't know how many kits they sold like what I have, but I am surprised that someone hasn't told them about belt slip. Surely there have to be more people than us few that had the belt to slip as bad as it does. I will admit it wasn't nearly as bad with the P1sc, but it was there. That configuration before the added idler pulley with a D1sc was junk. Wouldn't make power at WOT in third gear cause it slipped so bad.

 

I have additional pictures of this mod in my thread here: https://www.f150online.com/forums/su...arger-mod.html

 

Adding extra idler pulley definately helped D1SC on my truck I just found out.