Blue tooth Series 1 Pulley
I purchased an aluminum underdrive supercharger pulley from Bluetooth racing as an alternative to Pulley Boys because of availability issues for my Series 1 L-67.
I have used this pulley through 1 oil change ( 2500 miles ) and have noticed a few things.
1. It slighty shreds the backside of the belt.
2. The rib grooves are too sharp and cut into the belt a little.
3. The pulley is not as small as it should be. Folks with smaller pulley boys pulley'* are getting about 1 to 2 more PSI of boost than I am.
Overall it'* a decent piece but could be better. I recommended it on this board in the past.
I still recommend it, as this part is hard to find ! Just be aware it'* not perfect.
1992 SSEI Bonneville with all the options except heated windshield and ride control.
Mods Include 1998 SC'd Delco Ignition with Belden wires.
Autolite 104 plugs ,180 degree tstat
K&N Filter with ricepipe, 2.3 inch pulley with ZZP idler
Ported exhaust headers, Poly end links.
High flow cat. TPS tweak, Boost bypass mod
High low fan override.
" Always try it yourself. I bet the guy you pay to repair it broke a few before he fixed your'*. "