Which injectors are these?

Reply Subscribe

Thread Tools

Search this Thread

Oct 25, 2009 | 09:45 PM

Silvy6.0

Thread Starter

TECH Fanatic

iTrader: (5)

Joined: Nov 2008

Posts: 1,000

Likes: 0

From: Arkansas

Which injectors are these?

I have had different people tell me different things. Anyone help me out?

http://cgi.ebay.com/ebaymotors/Injec...#ht_9280wt_937

Oct 25, 2009 | 09:52 PM

Mangled03gmc

Baltimore Whore

iTrader: (95)

Joined: Apr 2004

Posts: 16,820

Likes: 2

From: In a van DOWN BY THE RIVER

3xlbrs.. Not the 42's or 44's.

Oct 25, 2009 | 09:56 PM

Silvy6.0

Thread Starter

TECH Fanatic

iTrader: (5)

Joined: Nov 2008

Posts: 1,000

Likes: 0

From: Arkansas

Are they 32#'s?

Oct 26, 2009 | 12:49 AM

budhayes3

PT's Slowest Truck

iTrader: (19)

Joined: Apr 2004

Posts: 17,863

Likes: 2

From: Hackensack, NJ

Known as the 8.1 gas engine 31 lb injectors, the actual flow rate according to an 8.1 tune is 29.9#

Oct 28, 2009 | 08:08 PM

NoShow

Launching!

iTrader: (1)

Joined: Feb 2009

Posts: 221

Likes: 0

From: Farmington, Mn

Those are the ones I bought. FYI, I'm showing 50% duty cycle at 3800 rpm, which puts me at 80% at about 6000, which is maxed out IMO.

I'm running a LS6 block 10.5:1 with truck intake, MAF and TB and a XR265HR-15 cam, which is only designed to run up to 5800 or so. Hopefully they will be sufficient when I put some headers on. 440 HP is pushing it for 31# injectors though. But they snap right in, slicker-n-snot

I got my whole rail with FPR and injectors for $100.
http://cgi.ebay.com/ebaymotors/06-08...Q5fAccessories

Last edited by NoShow; Oct 28, 2009 at 08:33 PM.