Join Date: Aug 2006
Thanked 9 Times in 8 Posts
My back pressure numbers are the same as the OP. Im right about 70 psi at about 32 pounds of boost which is about half throttle. This is with the 310. I havent even put it to the floor in a long time because of this. I puke coolant all the time if I get half throttle or more. Pretty sure gaskets are in my near future. haha.
08 F350 4x4 CCSB 6.4, 6" on 37s and 22s, Spartan DD w/ 310/KEM 345, Elite HPFP, Ported rails, EGR delete w/ wastegate, studs, CFM +, Rudys IC pipe, BD BOV, FASS 150 w/ custom fuel system, S&B intake, Rudys downpipe and DOC/DPF delete, CCV mod, Zex nitrous, Suncoast Trans, 1 piece drive shaft, Recon and tint everywhere. Under Construction