I need some info. What is the "old metco 4lb pulley" rated as far as boost is concerned. I hear that it was like 2.5 lbs as compared to the new metco 4lb pulley. Any answers would be appreciated.......

 

I had an "old" one; it was good for about 3 pounds over stock. If you have a metco hub; contact REM. They make there own rings that will fit the Metco hub, and are true to size.

 

Well I never realized that my pulley was sub par to what is currently available from metco. After a few pulls at Superior with Shawn at socaldiablo I came across a new kit that he had and decided to compare the difference of the "new" and the "old" 4lb pulley. I could not belive the substantial differences in diameter. Do you think that the new 4lb pulley will get me to the 400/500 club based on this dyno sheet? If so please let me know what a 6lb will do...

I plan on returning with some new results with the new pulley to see what the difference is. I also plan on trying the 6lb to see what that gets me........