blk496ss

iTrader: (1)

my uncles gots a 99 z28 witha d1 n is having problems with the belt slippn off everytime he takes it out everything is aligned.. does anynone upgrade to a 8rib set up???

conan

iTrader: (5)

Is the belt coming off the pullies? Or is it slipping and causing low or incontinence boost and lots of belt dust?

dschmittie1

iTrader: (64)

yes most of us upgrade to either the procharger 8 rib or the SDCE 8 rib set up

2000SS1979

iTrader: (16)

If the belt is coming off then it most likely is not aligned properly. I ran a 6 rib set up for about 6 months with no problems, but I upgraded to the 8 rib setup for the hell of it and still had no problems.

01boydws6

iTrader: (19)

I'm still on a 6-rib but I machined down one of the stand off post's and added an extra idler pulley to get more belt wrap on the head unit pulley, seemed to work so far I was making almost 11lbs on the dyno and no belt slip issues yet. I had a belt alignment issue to fix but as far as belt slip there was none.

AFASTYZFR1

iTrader: (55)

If belt is getting thrown off the pulleys there is definitely an alignment issue

Bob@BruteSpeed

iTrader: (16)

I agree, the belt should never come off. With proper belt alignment and a new belt, the six rib kit should not give any problems at 6 to 8 psi of boost. Bob

NoGo

iTrader: (2)

Belt alignment. I used a lazer alignment tool and some ingenuity to get mine aligned.

If you spend the time to align it properly you won't throw the belt anymore. The 6 rib may slip a bit, but you won't throw it.

AFASTYZFR1

iTrader: (55)

I aligned mine and my buddy's F1-C SS by eye and haven't had a single problem....but whatever gets the job done

stevieturbo

A good straight edge is as good as any for checking alignment

Aster

iTrader: (9)

The 6 rib really is a waste of time with these systems, even at mild boost levels (~8 psi) the 6 rib will slip. The 8 rib is definitely worth upgrading to.

As for throwing the belt everyone above has it right. The alignment is off. Usually caused by missing the appropriate shim on the supercharger between head unit and the pulley. The 6 rib is a different shim width than the 8 rib I believe I was told. Check to see if the shim is in place, if not get with Procharger and they will know the exact one for that setup.

Personally even when I was mild with the P1 I knew the Procharger bracket wasn't going to be ideal for me so I made my own. Link is in my sig if you want to check it out. It wasn't the cheapest option, but it has maxed out D1's without skipping a beat.

blue00ZZleeper

iTrader: (5)

Running another procharger james? lol

SDCE

Sounds like something might be misaligned slightly. Alignment is very crucial. Also check to make sure the bracket is perfectly flat too......

LSXFORMULA99

iTrader: (12)

i guess all my parts are good because i didnt have to align anything. just bolted it all together. i have a 8 rib setup

NXPRSS

iTrader: (23)

8 rib setup is the only way to go!!

98legendws6

iTrader: (5)

He should upgrade to the 8 rib and get the SDCE Bracket while hes at it.

LS1RedZ

iTrader: (19)

Yeah, you should definitely check out Aster's bracket setup.