i recently got my new 181 crank pulley put on a day after i opened the hood and i noticed my belt is getting shredded to pieces what could cause this problem

 

There has been problems reported of some hubs being too long and the pulley goes on too far forward subsequently the ribs in the belt do not align properly to the other pulleys.
I assume that the pulley and belt were installed correctly.
Try a search on this.

 

oo ok ive been doin some reading on this problem are the guys gettting the 185 pulley cut down to solve this problem

 

Place a square flush against the edge of pulley and see if it's aligned. By the way, the fan takes less than 5 minutes to remove.

 

I am assuming you mean aligned to the other pulleys. In which case it will not really prove anything if the grooves are a different distance to the front face.
Whoever made these pulleys had best look at their design and dimensioning and if that is OK look at the machinist who is making them.
From what I have seen they consist of two parts bolted together. Each part should have a datum face and all the machining dimensions should come from the datums.
My guess is that the design is correct and the machinist is in error.
These things cost a lot of money for what is a simple item, with no damper they should only cost about $350 to $400 to make and the rest is gravy.
Let's face it this is not rocket science, just a simple turning, milling and broaching exercise any competent technical student could do.

 

My understanding is that the pulley has a mechanical dampening system built in....not just a simple AL wheel on a steel hub....

I do agree that is sounds like the machinist may be making some kind of error... there have been a few of these reported. My original 181 had an undersized hole(~.002"-.003")on the steel hub and would not go on the crankshaft... the replacement slipped right on.

 

Mine was too long and you had to heat the hub in an oven to get it on. There is no way it's flying off.

 

I had one of the first failures and it was a 181 that was too long, cut it back and then installed it. You have to sight along the belts to see that they are all in alignnment. You can do agood job by eye if you take the time to really THINK and observe. Woody

 

I did not say they had no damping system, I said without the damping system they should cost the amount stated. Not having seen the system employed I am unable to access its cost. Frankly it cannot cost too much and I fail to see why an OEM hub and damper could not be used and a pulley attached by welding or bolts and balanced. I tend to think that some of these pulleys have no damper anyway.
I vaguely remember some system which employed springs, whether these had been engineered or guessed at is another matter. Loading the springs to get the correct result would not be easy and assembly a biitch. Having a damping system does not guarantee it does anything positive. OEM dampers have the benefit of a large engineering backup and elastomer's possess known qualities.
If the quality of the bores are as stated I would think that they are being made on the cheap by the lowest bidder. The aluminum for the pulley would not be my first choice, and was selected for ease of machining.
Too much faith is put in some add ons, which may or may not have been designed by someone with the correct skills and knowledge. The failure of some after market Crossfire parts shows this to be sadly too true.

 

reading threads like these make me love my c3 supercharger pulley more and more!! not a single issue and 19 psi boost on a cold day. WINNING!!!

 

19 psi at the Y (them are inflated numbers), not at the manifold.

 

even so im not running lean!

 

From what I've read, the SLK32 has a better fueling system, so you could probably run a 181 with your C3 without any problems. You lucky dog.