Originally Posted by BOLIO 671

I know this is an old thread being revived but I’m in the market for some pulley upgrades. I also am confused on the pulley sides. Maybe someone can point me in the right direction. Currently running the V-3 SCi with TopGunz A2A Kit.

I plan on doing the 928 SuperVortech upgrade. Right now only have the Stillen 9lb pulley that only gives me 8.76psi at 7300rpm. I replaced it as advised by Stillen back when I was on Stillen Kit before TopGunz made his kit available. (Refer to attached pic). Apparently the pulley that was there before was color Blue and I was told by Stillen at the time that the Blue pulley was their 8pb pulley that came with the kit (which only gave me 6/7psi). Reading this thread got me
confused as to whether this was the right pulley i replaced as recommended by Stillen back in 2015

What pulleys would any of u gents recommend with the 928 SuperVortech upgrade and what kind of boost increase would each or any of the pulleys u all recommend actually deliver. 928 is advertising their upgrade to be capable of 72k RPMs and running at 60k + RPMs all day.