TPI wire harness advice needed.
Thread Starter
Burning Brakes
Joined: Nov 2005
Posts: 1,143
Likes: 0
From: Leander Texas
TPI wire harness advice needed.
After pulling this mess out this evening,
I am wondering if I should keep the factory harness, and ecm?
Should I go with a Mega Squirt system?
I am not planing on using any, or as few of the factory emissions controls as nesessary(sp)._
If I keep the factory ecm, I know I will have to have a custom prom with the emissions parameters removed.
Will I be able to use the factory harness with the Mega Squirt system?
Now that the cooler weather is coming, working on this conversion will not be a sweat fest.
Any help or advice on either option will be greatly appreciated. I need both positive and negatives.
Funds are a factor in this, as the present carb set up works fine. I don't want to spend a fortune on the conversion.
DR.Jay
I am wondering if I should keep the factory harness, and ecm?
Should I go with a Mega Squirt system?
I am not planing on using any, or as few of the factory emissions controls as nesessary(sp)._
If I keep the factory ecm, I know I will have to have a custom prom with the emissions parameters removed.
Will I be able to use the factory harness with the Mega Squirt system?
Now that the cooler weather is coming, working on this conversion will not be a sweat fest.
Any help or advice on either option will be greatly appreciated. I need both positive and negatives.
Funds are a factor in this, as the present carb set up works fine. I don't want to spend a fortune on the conversion.
DR.Jay
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
www.diy-efi.org/gmecm
http://gmecm.mine.nu/
The Third Gen forums have a bunch of good FI stuff, too.
http://gmecm.mine.nu/
The Third Gen forums have a bunch of good FI stuff, too.
Links book marked.
Burning Brakes
Joined: Sep 2006
Posts: 1,071
Likes: 86
From: Rotonda FL
Checkout the following site for a down to earth look at TPI conversions and factory wire harnesses.
http://www.jagsthatrun.com
I used a Ron Francis kit when I put a TPI into my 85 Jaguar because it allowed me to wire each sensor individually and put everything in the original ecm location in the trunk.
I'm using a 91 Corvette weatherproof ecm on my 77 vette with a Street & Performance harness compatible with the wearherproof ecm. I've mounted the ecm in the left fender where it is just visible through the fender scoop. There's not a lot of room inside a C3 to mount the ecm and accomodate the 1 inch + bundle of wires from it through your firewall.
http://www.jagsthatrun.com
I used a Ron Francis kit when I put a TPI into my 85 Jaguar because it allowed me to wire each sensor individually and put everything in the original ecm location in the trunk.
I'm using a 91 Corvette weatherproof ecm on my 77 vette with a Street & Performance harness compatible with the wearherproof ecm. I've mounted the ecm in the left fender where it is just visible through the fender scoop. There's not a lot of room inside a C3 to mount the ecm and accomodate the 1 inch + bundle of wires from it through your firewall.
