Fuel injectors

SICKWIDIT · May 26, 2004

Who knows how many lbs/hr. are the stock fuel injectors?

farmtruc · May 26, 2004

what year are you refering to?

the 03/04's seem to have slightly larger injectors than the 99-02

SICKWIDIT · May 26, 2004

ms38w · Oct 28, 2008

just noticed that no one answered this question...Bueller...Bueller...Bueller...

Am I correct at saying 14#'s

Motion427 · Nov 6, 2008

24 lbs

Aries · Nov 6, 2008

Motion427 said:
24 lbs

Yep, i think that is right. If you need more you can install the 44lbs ones for an 8.1L Marine motor, thats what I run.

Motion427 · Nov 8, 2008

Same here I run the Marines 8.1L. But I understood that they were 42 lbs.
Stock 8.1L are 31 lbs
This is what I'm told anyway. >:D

intensem1rider · Nov 9, 2008

Whats the benefit of installing the bigger injectors?

JJsnowking · Nov 9, 2008

intensem1rider said:
Whats the benefit of installing the bigger injectors?

For your setup, absolutely nothing.
When more power is added, more fuel is needed, this is where the injectors come in.

intensem1rider · Nov 9, 2008

Ahh okay, makes sense.

Aries · Nov 9, 2008

Motion427 said:
Same here I run the Marines 8.1L. But I understood that they were 42 lbs.
Stock 8.1L are 31 lbs
This is what I'm told anyway.

They may be rated at 42lbs, I was typing off memory...

JJsnowking · Nov 9, 2008

Lord Aries said:
They may be rated at 42lbs, I was typing off memory...

Here are the specs on the injectors:
Delphi Multec injectors Part # 17113739

Static flow @ 37.95lb/hr @ 43.5PSI / 300KPa (4.31 g/s = 398cc/min)
Static flow @ 43.82lb/hr @ 58PSI / 400KPa (4.97 g/s = 460cc/min) *
Dynamic flow (2.0ms/10.0 ms(pulse width / rep rate)) 6.0 lb/hr @ 43.5PSI (0.748 g/s @ 300KPa)
Coil Resistance: High Impedance / High-Z (No ECM driver modifications required)
Ball/Seat Design with 3-Hole Diffuser Disc - Pencil stream

Aries · Nov 10, 2008

Sweet, good info to have!

Motion427 · Nov 11, 2008

JJsnowking said:
Here are the specs on the injectors:
Delphi Multec injectors Part # 17113739

Static flow @ 37.95lb/hr @ 43.5PSI / 300KPa (4.31 g/s = 398cc/min)
Static flow @ 43.82lb/hr @ 58PSI / 400KPa (4.97 g/s = 460cc/min) *
Dynamic flow (2.0ms/10.0 ms(pulse width / rep rate)) 6.0 lb/hr @ 43.5PSI (0.748 g/s @ 300KPa)
Coil Resistance: High Impedance / High-Z (No ECM driver modifications required)
Ball/Seat Design with 3-Hole Diffuser Disc - Pencil stream

Yep,those are the ones that I have on mine.

JJsnowking · Nov 11, 2008

Motion427 said:
Yep,those are the ones that I have on mine.

I have a set I took off of mine when I put in the 60's if anybody needs them. They have 8,000 miles on them.

Josh

Motion427 · Nov 11, 2008

A customer is supose to bring me a Denali with the 6.0L
Ported heads,cam headers & exhaust. From what I understand it still has the stock injectors.I'm pretty sure when I check it out,the injectors will be maxed out. When I see it.I'll contact you if they are still available.
Thanks for the info.