LT1/LS1 Engine Management

[Rick.Coleman]

I have an LT1 and 4L60E transmission from a 96 Trans-am WS6 for installation in my 52 Chevy truck. The truck will have all power options/AC/cruise control/etc. The engine/trans will remain stock but I want to clean it up by removing any/all the smog stuff I can. I have the original computer and harness from the TA, but the harness does have some damage from an accident. I would like to get some ideas/advise on how others have dealt with installing the LT1/LS1 into non pollution required vehicles. What pollution control items can I remove and how did you handle the computer/harness as far as re-programmed or replacing the entire engine management system

[Hart_Rod]

I've got the same set up in my 48 (http://67-72chevytrucks.com/vboard/s...d.php?t=179199)
An aftermarket harness is the way to go, it will save you time, money and headaches. Most are very simple to hook up. There are many companies out there:

Street and Performance
Painless
Howell Engineering (this is the one I used, but all are good companies)
Ron Francis.

Rob

[Seon]

I have a 5.3 Vortec and 4l60e tranny in my '56 Burb. I just mailed my harness and PCM to http://www.wait4meperformance.com/ for him to modify the harness as a stand alone and reflash the PCM for $340 includes return shipping. I learned about Jess Bubb owner from another forum that had nothing but high praises about his work. Good luck.

[midwestcar]

do a painless kit...had no problem installing it. it works great.

[Rick.Coleman]

Thanks. This is all good information. I hope it keeps going as I like being informed before I make my decision.

I would still like to know what I can get rid of in the smog department. I want to put headers on the truck and based on what I've read I should keep the o2 sensors on the exhaust but can get rid of the rear o2 sensors since I will not run catalytic converts. I am also thinking I can get rid of the air pump, and egr. Like to have your opinions.

[Captkaos]

Might also look into megasquirt. Built it yourself and install.
http://www.megasquirt.info/

ElGracho is using one on his:
http://www.gmcspecialeditions.com/

And I am sure you have seen this 10 second pickup he is also using megasquirt:
http://www.neufamily.org/truck.html

[3100 special]

Welcome to the board!

[FirstGen]

Originally Posted by Captkaos

Might also look into megasquirt. Built it yourself and install.
http://www.megasquirt.info/

ElGracho is using one on his:
http://www.gmcspecialeditions.com/

And I am sure you have seen this 10 second pickup he is also using megasquirt:
http://www.neufamily.org/truck.html

Just so you know, MegaSquirt will not allow you to control timing on a LS1 motor with coil on cyclinder design. Nor will it allow sequencial fuel injection only batch or bank fire systems.
It is great for controlling fuel in a boosted LS1 design when you have gone past the air volume max on the Mass Air Flow meter but it won't allow you to do a lot of the simple stuff that LS1Edit or HPTuners will...
Just FYI,
Taylor