Never read about anyone using this. I ordered the 3.12 from my supplier, and he offered me the 3.25 6 rib as well.(he has it in stock vs waiting for the 3.12) I cant see this making more than .5-1 psi more over the stock 3.33.

 

unless its a custom made pulley . Vortech doesnt stock a 3.25 pulley .Go with the 3.12

 

Boog, i saw it today, it was a vortech pulley said 3.25 right on it.

 

Hmmm....I wouldnt bother with it . Go with the 3.12......3.25 wouldnt get you much

 

Yeah i didnt think it would be worth the bother. Funny thing though, when i was at my vortech rep, he phoned vortech about the 3.12 and they said they didnt think the internals would hold up to it. I havent heard of anyone toasting a motor with the 3.12 because of too much boost.

 

Hmm, How about betwen 3.12" and 2.87" like a 2.94" over spin is cut down on the head unit @ 7k