I got a supercharger off the internet and am unsure on how to find the trim... I know it is a vortech v-1. It is giving me 4 lbs of boost at around 3k rpms (i'm breaking in my motor). I'm also getting a lot of belt slipage and would like to got with a cog set up, where can I purchase these and know how big I can go (as in safety of the s.c., my engine was built for boost) Any help would be great, as I've got a race date in 2 weeks with a guy from work w/ a S.C. Civic SI (wooooo!). Don't want to pop a belt off at the track... Sorry if this is a dead beat issue, i'm a s.c. newbie. Mike

Sounds like S-trim to me but after it says VI it should have a letter...like A, S, T whatever... thats the trim you have.. FWIW you CANT run cogs....UNLESS it has a HD stamped on the serial tag....s-trim uses regular bearings...Cogs will trash them.... you can have the blower upgraded to HD bearings BUT its usually cheaper to sell your compressor and start over with an HD unit...BELT slip @ 4psi sounds like an alignment problem... I ran 15PSI pullies on my vortech s-trim when I had it... I used 6 rib pullies and had NO SLIPPAGE.... Key is ALIGNMENT>>> dont assume that just bolting everything on will give you perfect alignment...Sometimes people will have a balancer thats not 100% on the crank...that throws it off...Or flash on the crank pully pushes the blower pully out...etc etc... different heads or machining imperfections... I used the stock brackets with NO BRACES and never had a problem...However I spend a little time specing clearances out in reguards to bracket/pully alignment...