Originally Posted by redondoaveb

Evidently, I must have been getting belt slip from the Sur Grip pulley starting right after install (evidenced by the amount of belt dust). It made 14.8 psi when Seb tuned it right after the pulley install. I changed out that pulley to the Vortech smooth pulley and the Gates rpm belt and did a couple of logs for Seb. The good news is, I've got zero belt slip (no belt dust at all). It's now making over 16 psi. The bad news is, my injectors are now running at 115% duty cycle. Look's like I'll be upgrading to 1300cc injectors and CJM's twin pump set up.