NNBS Flex Fuel pumps hit or miss???

Reply Subscribe

Thread Tools

Search this Thread

Sep 4, 2014 | 12:20 AM

#11

0235SS93

TECH Enthusiast

iTrader: (1)

Joined: Nov 2007

Posts: 674

Likes: 3

I'm running 10 psi on the stock flex fuel pump in my 2011 sierra. Zr1 injectors aND 11.5afr. No problems here and only 80% injector duty cycle.

Sep 4, 2014 | 08:57 AM

#12

George C....

Formerly ScreamingL

Joined: Oct 2003

Posts: 3,456

Likes: 5

From: From the 412

540rwhp/554rwtq from a P1sc
stock flex fuel pump

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

450lph in non flex fuel bucket

RS/SS 4.8

FUEL SYSTEMS

Aug 2, 2015 11:03 PM

Add Flex Fuel Capability to '15 L83

Closer_2001

GMT K2xx Trucks General Discussion

Jul 21, 2015 03:25 PM

Returnless system, Walbro 450, ID1000, E85... anything wrong here?

lxcoupe

FORCED INDUCTION

Jul 21, 2015 02:12 AM

Need help - Stumble at first cold start, dealer can't find anything wrong

Mossyoakglock

GMT 900 Trucks General Discussion

Jul 17, 2015 08:30 AM

Nnbs intake help.

blackdc3

GM Engine & Exhaust Performance

Jul 7, 2015 07:52 PM

Reply Share

First
Prev
2 / 2
Next
Last