slowwssix

iTrader: (4)

I recently got done having a 6.0 lq9 built for my car after a tuning issue blew my 25k mile ls1 up last summer...I haven't had the car on a dyno but I used my ms4 cam prc heads and ported fast 102 intake from my ls1 and had my Nitrous installed....my tuner noticed we were maxing my 42 lb fast injectors out on motor they were at 117 percent duty cycle so I bought 80 lb injectors from injector dynamics and that obviously fixed that issue...I have a walbaro 255 pump and the hot wire kit so we made the first nitrous hit on the car and my fuel psi went from 60 to 30 psi at wot I'm spraying a 150 shot off the rail...would like to spray a 200 shot but I want to know what you guys are doing for fuel delivery I don't want to do a stand alone system....is there a dual pump return style system that can be bought?

JoeNova

Why not just replace the pump with a bigger one and call it done.

slowwssix

iTrader: (4)

How big of a pump can I fit in my stock fuel hat?

brandon6.0

iTrader: (32)

aem 340lph would fit perfect. just saw u have a 255 already. U may need something bigger than 340 like a 380. As for spraying and pulling from the rail u should be fine at 150 with more pump but anything more and u need to watch things. Standalone would be the best.

91 Z28

iTrader: (3)

Throw dual 340 pumps in the tank with the second pump wired to fire up when the nitrous hits. That should cure your fuel issue

brandon6.0

iTrader: (32)

^^ Yea that would work great!!