tuning a fuel injected motor - 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> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-18-2006, 03:20 PM
all show, all go with a 383
 
Last photo:
Join Date: Aug 2004
Location: illinois
Age: 30
Posts: 95
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
tuning a fuel injected motor

I have a 73 nova with a 383 stroker with fuel injection, computer in car is a Bigstuff 3 ecm. I recently left a post similiar to this but now I have a few more questions. I was working on making the motor fire up instantly after turning key, instead the motor cranks for a second or two.

I talked to one guy and he said to increase the injector pulse width during cranking, I did that and it helped a little but the motor still cranks longer than normal. It doesn't matter if it is cold or warm, or if the motor has been running for a while. It cranks longer than I think it should. I remember with the carburetor on the motor, it would fire up really quick. All the parameters of the motor can be adjusted through the ecm.

Does anyone know what else might cause the motor to crank longer than neccesary?
timing is not far advanced, maybe about 12 degrees at idle.
fuel pressure is about 55 psi, have 55 lb injectors.
If you need to know anything else about the setup, please let me know, so I can help you help me.

need to get this fixed before the carshows start

thanks

Dan

    Advertisement
Reply With Quote Quick reply to this message

Recent Engine 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:
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
1960 corvette rochester fuel injection ratlover Engine 9 06-19-2013 08:31 AM
Aftermarket EFI ? x007 Engine 61 02-08-2012 10:38 AM
93 Suburban fuel pump sabino56 Engine 8 09-10-2005 02:54 PM
Fuel Tank Installation Plumbing Questions Doc68 Engine 9 01-05-2004 06:20 PM
Can Fuel Injected Cars Shoot Exhaust Flames? wendog Engine 6 11-25-2003 12:41 AM


All times are GMT -6. The time now is 11:06 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.