Just got truck back from Troyer Performance, and belt slip was once again the major issue. It pulls great to about 5200 rpms then the belt starts to slip so boost won't keep rising at that point. Truck is a 97 4x4 4.6l 5 speed with a D1sc 6 rib pulley setup. Does anyone know of a company who sells pulleys that grip better? It's annoying as Hell knowing that if not for belt slip, the final dyno numbers would be much better. Any help will be appreciated. THANKS!!!

 

Maybe you could find a cog belt setup???

 

Ac delco. Back when my Stang had a vortech that was the only belt I would run

 

Tried different belts but none helped. I don't think they make 8 rib setup for my truck also. Wasn't there a company that used to coat the ribs with something to help with grip? Cog setup would probably cost a fortune if it would even work.

 

Just found the Riechard Racing ultra grip pulleys are available for the procharger. Anyone know anything about them, or using them?

 

idler pulley is 32 bucks from autozone, its off of a focus. then just get some fender washers and a nut and bolt. drill mount use the washers for shims to shim the pulley out then just get a longer belt. i was able to get 10psi out of stock pulley and no more belt slip!

 

What were your final numbers? Is your truck black? I saw a late 90's truck with a Procharger on it when I was up there. If it was yours thats a nice looking rig

 

Yep that was mine. It's a 97. Mike had it to 440 before the belt started slipping.

 

damn 440hp how much boost are you pushing??
10-12?

 

440 is impressive. I wonder how much hp is saved going through a manual trans?

More pics/nice job here: https://www.f150online.com/forums/su...-slip-fix.html

 

hey theres my old thread lol

 

I think it hit 13 lbs once.

 

440 was ok I guess, but I was really hoping to see 500, and it looked like we were going to get there before the belt started slipping.

 

Crash. Let me know if you find a solution to the belt slip. What about the Riechard Ultra Grip Pulley? It sure looks like it would help.

 

Well I don't have to worry about belt slip for a while because NOW the newly rebuilt head unit is spitting out oil. I have about had it with Procharger, cause its either belt slip or some other problem with the damn thing. I would not recommend their junk to my worst enemy. One day I hope to have the money to afford a real supercharger and someone else can own this piece of junk.