im runnin 10 psi on a 3.7inch pulley.... does any one kno of a company that makes a smaller pulley for that set up besides pulley boys cause i have the smallest one they offer for the si. If not what other way can i get more boost? Or will a rsx type s pulley fit on the 02 si because for some reason they come as small as 3.1inch?


02 si with J/r kit. 3.7 pulley, 440cc injectors, c/a/i, dc race header, apexi ws2 exhaust tuned with k pro at 210whp at 10psi

 

The pulleys for the RSX's are the same as the EP3 JRSC pulleys.

- Derek

 

your sure thats a fact?

 

i wouldnt go to low on puley size as belt slipage may become an issue.

 

okay i have a 3.7 good for 10.5 psi... what would be the smallest pulley i could run and not get belt slipage

 

What are your IAT's like? Id look into water injection along with the smaller pulley. Or maybe look for a larger crank pulley. Maybe the K24 or RDX have larger units.

 

you can always grind down the blower pulley