bopiela

Hey guys, hope someone can give me some help and clarification on this. I bought a v-1 s trim head unit and am going to be buying the rest of the peices this summer. My question, though, is what the difference between then 6 and 8 rip pulleys are. It has an 8 rib pulley on it - not sure of size, and I know GT's use 6 rib belts. Is my only option to buy a new pulley, a 6 rib one? Does the size of that pulley effect the belt size I need?

Any help is appreciated.

JD1969

The SC belt will only drive the SC. All you need is for the upper and lower pulleys to be the same type. An 8 rib is wider, with mire surface area= more grip and less chance of belt slip.

grogan

the eight rib on the s/c will work will the 6 ribs of the rest of the car but u have to run a 6 rib belt and u have to make sure its on there tight or else u run the chance of shredding the belt and breaking something.

OR u can opt for the 8 rib kit from vortech for 800 bucks and go all out. i think when u get up to 16lbs of boost 8 rib is needed. i dunno if u ever plan on that route.

MU71L4710N

dont even try using that pulley unless you have a forged motor. i don't know what size it is but the previous owner was at 14lbs of boost or something like that with it. that's bad news on a stock bottom he had an MMR block.

bopiela

^thanks man. good to know. guess ill look into a different 6 ribbed pulley.

thanks everyone else too

vanquish

What diameter is the pulley?

lizzyfan

You can DIY for half of that

bopiela

Not sure on the diameter. My goal isn't to push that much power from this whole kit. I'd be happy in the 375-380 or just under 400 range when all modding is done. So the 8 rib, and apparently high boost pulley I have isn't needed. I'll measure and let you know. Where can I find the best prices on pulleys? ANyone know?

MU71L4710N

ebay. i had bought (then sold) the pulley i was gonna use for around 50 bucks. superchargersonline sells them brand new for like 60-80 bucks or something.

bopiela

what size did you buy? reasoning?