View Single Post
Old 08-25-2011, 05:35 PM   #25

GretchenGotGrowl's Avatar
Drives: LFX/F150/Sonic/C7 Z06 ordered
Join Date: Sep 2010
Location: Little Rock, AR
Posts: 6,234
Originally Posted by dthomp2366 View Post
Throwing this out there but has anyone looking into the fuel system for the Cobalt? I know alot of guys that have run 30psi over the stock system so my logic is leading me to believe that the direct injection system from a cobalt should flow enough for a LLT.

I know Cobalt's fuel pump is in tank and the rails can run up to 2800psi. So if it can push 4 cylinders to 30psi then it should be able to push 6 at 5-10psi.

Hopefully this can help solve the puzzle
Actually the Cobalts have a similar setup to ours. The in-tank low-pressure pump and a high-pressure pump connected to the cam shaft. They have exactly the same pump and had to rely on aftermarket manufacturers to build new high-pressure pumps. That's what we are working on now.
EFR Twin Turbo LFX-GPI Tune-ZL1 fuel pump-10:1 CR forged pistons-3.45 gear-Meth Injection-BMR Trailing Arms, Bushings & Sway Bars-CircleD 4000 Stall-GPI Fuel Enrichment System
647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
Build Thread
GretchenGotGrowl is offline   Reply With Quote