Running OE 96+ vortec induction with 7427

Reply Subscribe

Thread Tools

Search this Thread

Jun 14, 2009 | 12:21 PM

Drumer919

Thread Starter

Member

Joined: Mar 2009

Posts: 188

Likes: 0

From: Columbus, OH

Car: 1995 K2500

Engine: 5.7

Transmission: 4L80E

Axle/Gears: 4.11's

Running OE 96+ vortec induction with 7427

I am doing research for the MPFI conversion using my 7427 PCM. If I use the 96 vortec CPI injector what mods are needed to the PCM to drive that injector?

Last edited by Drumer919; Jun 14, 2009 at 04:57 PM.

Jun 14, 2009 | 01:27 PM

RBob

Moderator

iTrader: (1)

Joined: Mar 2002

Posts: 18,432

Likes: 233

From: Chasing Electrons

Car: check

Engine: check

Transmission: check

Re: driving PFI injectors with 7427

Depends upon the resistance of the injectors as to whether anything or what needs to be done. If using saturated injectors just run jumpers across the sense resistors.

RBob.

Jun 14, 2009 | 04:24 PM

Drumer919

Thread Starter

Member

Joined: Mar 2009

Posts: 188

Likes: 0

From: Columbus, OH

Car: 1995 K2500

Engine: 5.7

Transmission: 4L80E

Axle/Gears: 4.11's

Re: driving PFI injectors with 7427

Thanks RBob I found that on FSC though.

Is the jumper mod needed to run the CPI injector from the vortec intake or not? How would I do that? I'm not dead set on using it but I picked it up complete for $15 so I couldnt pass it up, plus I didnt even have to pull it!

Is there a true PFI OEM intake setup for vortec heads or only CPI?

Last edited by Drumer919; Jun 14, 2009 at 04:54 PM.

Jun 14, 2009 | 06:35 PM

DeanJ

Member

Joined: Aug 2006

Posts: 429

Likes: 0

From: Mt.Holly, NC USA

Car: 1988 Camaro, 1986 S10, 2000 Harley

Engine: LS6

Transmission: T56

Axle/Gears: 3.75 9" ford trac loc

Re: driving PFI injectors with 7427

Quote:

Originally Posted by Drumer919

Hi Drummer, GM Performance Parts Ramjet intake. Fits vortec style small block heads. Picked up the intake on ebay, tuning it with the EBL, and I LOVE it. Dean.