HEI vs TR - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 11-11-2002, 01:38 PM
Posts: n/a

I'm looking for opinions on this. I've done the TR Upgrade to my 87YJ and it seems to work OK, although I don't notice any big improvement, if any at all. I have gone through 2 Modules since doing the conversion(the NAPA brand that came with the Jeep and a Wells-AutoZone) since last summer and only 1500 miles. I'm not saying it has anything to do with the TR upgrade but I'm thinking I'd like the supposed overall reliability of the HEI over the Motorcraft.
Sponsored Links
post #2 of (permalink) Old 11-11-2002, 02:01 PM
Official Historian
WILL's Avatar
Join Date: Sep 1999
Location: Hot Springs, AR
Posts: 8,339
Thanks: 1
Thanked 5 Times in 5 Posts
Re: HEI vs TR

Have you checked the voltage at the coil after your upgrade?
WILL is offline  
post #3 of (permalink) Old 11-11-2002, 03:51 PM
Join Date: Jan 2001
Posts: 769
Thanks: 0
Thanked 0 Times in 0 Posts
Re: HEI vs TR

Make sure your module is at full battery or alternator voltage. Some guys are making the mistake of supplying the module with the resisted voltage instead of full battery or alternator voltage. I have heard of a couple modules frying and one that overheats because of this.
The coil should be at battery voltage when starting and 7-9.5v when running. It depends on your resistance wire values.
Jeeplvr is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not 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

For the best viewing experience please update your browser to Google Chrome