powermad
trevor
- Joined
- Feb 10, 2008
- Messages
- 1,070
so i had a 62/65/12 being fueled by a set of westons 5x.012 191dv ofv no plate slight star wheel cranked and all the other diy mods... i was hitting 38psi peak boost with the gate plugged. after installing a 66/74/.91 11 blad divided im getting 60pounds of boost and the truck rips like a bat out of helll! i have the fuel coming in around 25psi now so the truck runs really clean while daily driving but from half throttle on its like a flick of a switch instant insanity! now what confuses me is my old truck a 01 cummins with 250hp injectors edge drag and and h2o/meth i didnt get more then 5 psi difference in boost when going from a 62 to a 66. is this normal to gain soo much power on the 12 valves? not complaining just really surprised at the extreme power gain...