Muscle Car Fuel Injection

[Michael Skolones]

--IMA.Boundary.879563478
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Content-Description: cc:Mail note part

     Check out Accel's web site.  There is a fuel injection catalog you can 
     download in Adobe Acrobat (.pdf) format, and if you need a reader you 
     can get one there as well.
     
     If you are short on patience but have a some cash to play with you 
     might try using Accel's parts; I haven't tried them myself, but they 
     have interesting stuff.  All of their fuel injection components are 
     geared towards muscle cars. I'm thinking of using them (someday) on a 
     331 Hemi. 
     
     They sell a bushing kit that you can use to have a stock 360-4bbl 
     manifold altered to multi-port fuel injection configuration.  
     Essentially this involves drilling holes down near the intake valves, 
     welding or epoxying in the bushings, then grinding off the excess 
     bushing from the inside of the runners.  The bushings accept standard 
     Bosch-type fuel injectors, I believe.
     
     
     Now for the throttle body, Accel makes a big body that is a 
     replacement for the GM/Ford bodies used on their newer FI V-8's; it 
     will attach to a 4-bbl manifold via a Holley bolt pattern (may require 
     an adapter, I can't remember, but there is a way).  Otherwise you can 
     get a GM or Ford throttle body out of a junkyard and adapt it somehow.
     
     For the control system, Accel has several configurations of an ECM, 
     depending on whether you want it to work independently of the ignition 
     or not.  Computer-controlled ignition is another big ball of wax, so 
     you might want to go with Chrysler electronic ignition and an 
     independent fuel injection computer.  I've heard that the Accel ECM 
     will run you around $1000.   The Accel computer can be programmed 
     using a PC via serial cable, so I've been told. These systems are 
     based on manifold absolute pressure (MAP) sensors, rather than the 
     mass air flow (MAF) sensors found on typical Bosch and similar 
     systems. Supposedly MAP systems have poorer low-speed driveability 
     than the MAF systems, but do better at higher-end performance. (Just 
     hearsay on my part, ask around).
     
     For closed-loop control you will also need to fit an oxygen sensor 
     onto the exhaust manifold or header.  The choice of what type of O2 
     sensor (heated or non-heated, etc) may be dictated by the Accel 
     computer design and wiring harness.  From what I've read you'll need a 
     "heated" type O2 sensor if you are using headers, for they do not 
     retain enough heat to keep the sensor warm enough to operate properly.
     
     All in all expect to spend a few thousand to get a working FI motor.
     
     On the other hand, if you have some money to play with check out the 
     fuel injection systems used on the Magnum V-8 motors used on the 
     neat-o new Dodge trucks.
     
     Mike Skolones
     
     
     
     


______________________________ Reply Separator _________________________________
Subject: Muscle Car Fuel Injection
Author:  diy_efi at coulomb.eng.ohio-state.edu at Internet
Date:    9/15/97 3:55 PM


I have subscribed to the efi listserv and have found little mention of 
muscle car fuel injection.  I am trying to design fuel injection for a 1971 
Duster.  The engine is a 360.  I am working on designing a cross ram 
injection using a custom made sheet metal intake manifold.  
        I am in the beginning stages of this design.  The Corvette cross
fire injection was my inspiration for this.  The small block chevy and mopar 
both have the same firing order so I was contemplating using a cross fire 
computer.  I have found that most of these cross fire cars ran poorly.  Does 
anyone know why?  Should I gear my design away from a throttle body?  I 
would like to.
        I am intimidated by most of the postings.  If anyone is
compassionate enough to lend some guidance I would love to return the favor.
I am capable of creating any custom sheet metal style aluminum intake manifolds.
     
--IMA.Boundary.879563478
Content-Type: text/plain; charset=US-ASCII; name="RFC822 message headers"
Content-Transfer-Encoding: 7bit
Content-Description: cc:Mail note part
Content-Disposition: inline; filename="RFC822 message headers"

Received: from coulomb.eng.ohio-state.edu (128.146.90.150) by
mailserver.mail1.com with SMTP
  (IMA Internet Exchange 2.1 Enterprise) id 0009AA67; Mon, 15 Sep 97 14:31:07
-0700
Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI)
	for diy_efi-outgoing id TAA21371; Mon, 15 Sep 1997 19:55:24 GMT
Received: from r02n02.cac.psu.edu by coulomb.eng.ohio-state.edu via ESMTP
(940816.SGI.8.6.9/940406.SGI)
	for <diy_efi at coulomb.eng.ohio-state.edu> id PAA21366; Mon, 15 Sep 1997 15:55:21
-0400
Received: from pft101.rh.psu.edu (PFT101.rh.psu.edu [128.118.125.178]) by
r02n02.cac.psu.edu (8.7.6/8.6.12) with SMTP id PAA30650 for
<diy_efi at coulomb.eng.ohio-state.edu>; Mon, 15 Sep 1997 15:55:10 -0400
Date: Mon, 15 Sep 1997 15:55:10 -0400
Message-Id: <199709151955.PAA30650 at r02n02.cac.psu.edu>
X-Sender: pft101 at email.psu.edu
X-Mailer: Windows Eudora Light Version 1.5.2
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
To: diy_efi at coulomb.eng.ohio-state.edu
From: Paul Tholey <pft101 at psu.edu>
Subject: Muscle Car Fuel Injection
Sender: owner-diy_efi at coulomb.eng.ohio-state.edu
Precedence: bulk
Reply-To: diy_efi at coulomb.eng.ohio-state.edu

--IMA.Boundary.879563478--