So i started noticing my car would screetch at high rpms, im having trouble finding it, its kindof like a screetch grind noise, it is definately in the pulley and supercharger area, could be an idler pulley bearing or the belt slipping im not sure

I just had my tensioner damper replaced with an alta adjustable tensioner, and i have a new belt with the proper size for a 17% pulley and a 2% crank pulley

Has anybody ever had this problem, or does anybody know or have an idea of what it could be?

Thanks

 

what size belt?
Look at the tensioner...how many holes do you see?
a -17% and a +2% is kinda unusual...give you about a 19% reduction

 

I have about one hole on the tensioner showing, both are alta pulleys, although the supercharger pulley is the v1. I have a napa 060539 belt on it, and i just installed it less than a week ago

I took out the tensioner itself to inspect the bearing but it is perfectly fine

 

The higher rpm screatch is USUALLY a sign of belt slipping....
in the past, alta's charts have been on the longish side for belts. I am honestly not sure which one for your combo...but with ONE hole showing, it should be ok...could be a bit tighter with a new belt..they do stretch...
V1 imo is a better pullet than their V2..so no issues there....edges of the belt look ok?

 

The edges sound okay, and i did hear some slip every now and then, i might have to go tighter on the belt