built from scratch fuel sys
05-05-2014, 03:56 PM
#1
Staging Lane
Thread Starter
Join Date: Aug 2011
Posts: 93
Likes: 0
Received 0 Likes
on
0 Posts
built from scratch fuel sys
I have a 2008 LY2 4.8 In a Jeep Wrangler It had a return-less sys on the engine
I used the stock Jeep in-tank fuel pump and eliminated the stock fuel regulator on top of the Jeep assembly . I then installed a Corvette fuel filter regulator and ran a return to the tank. The engine runs fine, and starts fine, But under extreme acceleration its starving for fuel . (Checked with pressure tester on rail and at WOT its dropping to 30 PSI )
Ideas ?
Thanks
Lowell
I used the stock Jeep in-tank fuel pump and eliminated the stock fuel regulator on top of the Jeep assembly . I then installed a Corvette fuel filter regulator and ran a return to the tank. The engine runs fine, and starts fine, But under extreme acceleration its starving for fuel . (Checked with pressure tester on rail and at WOT its dropping to 30 PSI )
Ideas ?
Thanks
Lowell
05-05-2014, 05:05 PM
#2
My best guess would be that the stock jeep fuel pump just isn't keeping up. Any idea what the flow rating of it is? I wouldn't think that a 4.8 would over power a stock pump but I guess it all depends on the size of the pump. Also if you have any mods vs just a stock 4.8, that could be why.
Thread
Thread Starter
Forum
Replies
Last Post
noproblems209
Tuning, Diagnostics, Electronics, and Wiring
12
08-10-2015 06:57 PM
GMCtrk
FORCED INDUCTION
67
07-17-2015 06:39 PM