Hello, I thought of a question when reading another post here. I read that with a 15% pulley, if you do a hard run past 4000 RPMs and you suddenly realize a funny smell then that is an indication that your belt is slipping. I do notice this smell and never knew what it was but the belt would make sense. Anyways, I have a 15% pulley on my car and soon adding a 5% Alta-Nator pulley and 2% M7 pulley as well. I will be replacing the belt at the same time since I have 30K on the stock belt. Do I still go with the stock size or should I get a different size since I am getting some slipping and also puttin on the other 2 pullies. Just lookin for some info here, TIA.

BEATNUT

 

Bet I get some greif, but, I use 16% with a Goodyear 4060537. It is smaller. The stocker is a 4060539, I think. This ( 537 ) fit the best with a tension tool. There are others that also use the same on a 15%. The 2% crank will bring it back up, as will the Alta-Nator - looks more like the stock size would be best.

 

Ok yeah I was thinking stock size also but just wanted a little input before I go ahead and order the parts.

Thanks,
BEATNUT

 

do a search. there's a thread on this with a chart of all the combos and associated belts . sorry i can't remember which or when .

 

Stock should do you fine . The bigger 2 % crank pully will take up a good bit of the slack from the smaller 15% .