I got a belt slip. 6L making 11 psi with a 3.5-6 rib pulley. I have seen some guys cut gruves cross ways on the compressor pulley, Works?
Any ideas? I don't want to go back to 8 psi.

 

I'm assuming with that psi and a 6L, you have the p1, right?

 

You can do like I did, reconfigure the pulleys to get more belt wrap.. Seems to have fixed my problem..

 

I have the same amount of belt wrap because I have the new style bracket!

 

Prochargers seem to start slipping with 6rib at about a 3.6" pulley and smaller the pulleys with the groves help a little but if you want no slip and smaller then a 3.6" pulley you might want to consider 8rib.

 

who does the 8 ribs for trucks...?? and what pullies change..??

 

ATI and Innovators West offer 8rib kits they come with a Crank pulley 8" instead of 7.5"stock, Alt pulley, tensioner pulley, and power steering pulley. With the larger crank pulley it spins the belt +-10% faster so you can run larger blower pulleys (less likey to slip) or spin your blower +-10% faster.

 

around how much are the kits,,,??

 

1100 or so for ATI, about 1300 for Innovators, of course if you shop around you can find deals.. I picked mine up for CHEAP, but it is used

 

i just bought the blower pulley and the one on the bottom right hand side ... which i think is the crank right...??