[Gmecm] '747 and multi=port

[David Haggard]

This is great to know, as I was thinking about using bank fire multiport injectors on my next build, a 350. I can't use Edelbrock's PROM, just modify the one I already have. But if I could get their wiring harness for the injectors it would save a bunch of work.
 
David


   _____  

From: Dave [mailto:hernt at mindspring.com] 
Sent: Sunday, April 10, 2005 12:32 AM
To: David Haggard
Cc: gmecm at diy-efi.org
Subject: Re: [Gmecm] '747 and multi=port


Yes. Check out their online catalog. Edelbrock provides a new PROM. I had to toss it since the PROM did not accommodate the increased stroke (383 vs. 350) or different cam. Easy to install (I had the engine out on a stand). Very good performance. Still tweaking, this is my first modified EFI.

David Haggard wrote: 

Thanks.

Did that setup come from Edelbrock? I mean, connecting the injectors to the '747?



David 



  

-----Original Message-----

From: HYPERLINK "mailto:gmecm-bounces at diy-efi.org"gmecm-bounces at diy-efi.org 

[HYPERLINK "mailto:gmecm-bounces at diy-efi.org"mailto:gmecm-bounces at diy-efi.org] On Behalf Of Dave Harvey

Sent: Friday, April 08, 2005 12:43 AM

To: HYPERLINK "mailto:gmecm at diy-efi.org"gmecm at diy-efi.org

Subject: Re: [Gmecm] '747 and multi=port



David,

My 91 GMC pickup was originally TBI w/ 1227747. I installed 

an Edelbrock multi-port injection sytem on top of an HT383 

engine. The Edelbrock uses the '747 to bank-fire the 

injectors. I'm 99% sure the injectors are wired in parallel 

in 2 groups of 4. Pretty slick setup.



-- Dave



David Haggard wrote:



    

I seem to recall reading in past documents and messages 

      

that a 1227747 

    

can run multi-port injection in bank-fire mode.



 



Is this true? If so, should each bank of injectors be wired 

      

in series, 

    

or parallel? (I once had a dual 2-bbl TBI setup on a crossfire, and 

those injectors had to be wired in series. They would not 

      

fire at all 

    

in parallel.)



 



David Haggard



   '88 Formula Firebird "SR-71 Black 'Bird"



 





      

_______________________________________________

Gmecm mailing list

HYPERLINK "mailto:Gmecm at diy-efi.org"Gmecm at diy-efi.org

HYPERLINK "http://lists.diy-efi.org/mailman/listinfo/gmecm"http://lists.diy-efi.org/mailman/listinfo/gmecm





--

No virus found in this incoming message.

Checked by AVG Anti-Virus.

Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005

 



    



  


--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005



-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.diy-efi.org/pipermail/gmecm/attachments/20050410/e5297888/attachment.html