obd1 elimination - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-11-2010, 07:57 AM
Registered User
 
Join Date: Nov 2010
Location: land o lakes fl.
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
obd1 elimination

I have a 1994 chevy k1500 z71 5.7 auto tran. I im putting in a 350 mod with 650 carb,mild cam,headers,after market ing. How do i deal with the obd1 com. trans shifting,fuel & ing & anything Else THANKS FOR ANY HELP

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-12-2010, 12:24 AM
richard stewart 3rd's Avatar
Registered User
 

Last journal entry: 351W rebuild
Last photo:
Join Date: Jan 2006
Location: tremont, pa.
Age: 69
Posts: 2,217
Wiki Edits: 0

Thanks: 13
Thanked 15 Times in 14 Posts
Hi,
The 94 truck 5.7/350 is a swirl port headed TBI engine, the head takes an intake with a 75* angle on the center bolts, the Edlebrock E3706 for EGR applications or the E2104 for non EGR would work for a 4 bbl carb application. The tranny for 1994. it could be a 700R4/4L60 (I'm not sure about the 4L60E) neither are designed for a mechanical speedo and require a tail shaft modification to drive a mechanical speedo. No computer, you'll need a conventional HEI that will go right in.
Rich
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-12-2010, 07:12 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,217
Wiki Edits: 0

Thanks: 203
Thanked 258 Times in 240 Posts
Quote:
Originally Posted by gtfout
I have a 1994 chevy k1500 z71 5.7 auto tran. I im putting in a 350 mod with 650 carb,mild cam,headers,after market ing. How do i deal with the obd1 com. trans shifting,fuel & ing & anything Else THANKS FOR ANY HELP
There was a post in the trans section a few weeks ago by fastorange, where as he described using the 4l60e with a carburated engine. You still need the pcm to run the trans, incidently you can use the electronic speed sensor to run the speedo also.
Your trans is probably a 4l60 E wich is electronically controled. Do your homework before digging in , you may go backwards.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-12-2010, 08:35 PM
Race The Truck
 

Last journal entry: Son's Truck
Last photo:
Join Date: Mar 2006
Location: Arizona
Age: 58
Posts: 645
Wiki Edits: 0

Thanks: 4
Thanked 1 Time in 1 Post
You don't need to dump the TBI to get power. A few mods and your good to go! Moded tbi 450-700 cfm on ebay 230.00 a performance chip 140.00 and a edlebrock 3704 manifold comp cam 252ah-12. stock heads moded My sons mild street build 300 maybe 320HP Go here www.fullsizechevy.com and www.thirdgen.org www.fivestarengine.com on ebay tbi chips ebay! It all smog legal.

Craig
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-13-2010, 09:29 AM
richard stewart 3rd's Avatar
Registered User
 

Last journal entry: 351W rebuild
Last photo:
Join Date: Jan 2006
Location: tremont, pa.
Age: 69
Posts: 2,217
Wiki Edits: 0

Thanks: 13
Thanked 15 Times in 14 Posts
Hi,
If your truck has the 4L60E. The "E" version needs a computer and a bunch of sensors to operate. That's what I meant when I said I wasn't sure if it's the "E" version or just 4L60
Rich
PS here's a link to fastorange's post that was referenced
How To: Using TBI PCM for 4L60E Control.

Last edited by richard stewart 3rd; 11-13-2010 at 09:38 AM.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-25-2010, 02:15 AM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Burton, MI
Posts: 791
Wiki Edits: 0

Thanks: 36
Thanked 15 Times in 14 Posts
if you are hellbent on running the carb, the _easiest_ thing to do would be to pull the 4l60e out, and replace it with an older non-electronic 700r4 if you want o.d if you dont' care about having overdrive.. a TH350 is a great choice.

there are aftermarket shift controllers available, but they ain't cheap.

it wouldn't be that hard to build your own manual shift controller for it either since the forward gears are controlled by a series of on/off solenoids.

I know that both solenoids OFF gives you 2nd gear (Failsafe mode, incase something craps out, 2nd gear leaves you with something useful to limp home with)
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gen VI 454- oil cooler elimination powderbill Engine 1 03-25-2007 07:29 AM
OBD1 code 63 & 64, replaced right sensor, "learn disabled"? mike 96 ws6 Electrical 0 11-30-2005 06:40 PM
proper egr elimination layinitdown Engine 1 03-16-2004 04:28 PM
vacum and time obd1 rally4x4racer Engine 8 02-12-2004 07:26 PM
Dashpad elimination in a 66 Mustang Dejavu Interior 1 12-19-2003 07:11 AM


All times are GMT -6. The time now is 10:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.