What did I do wrong here (HEI Conversion)

[zombezoo]

Fabbed up this mount today out of a big piece of heat sink I had in my scrap aluminum bin, and moved the module off of the distributor to the firewall. It should not be getting hot now. I would like to eventually replace the E-coil with a cannister type but hey if I get more than 250 miles out of this module I will be grinnin for sure!
Whaddya think Bob? I know you get a big kick outa this kinda ****.

View attachment 1832329View attachment 1832330

Love it.

 

[Canadian1968]

@zombezoo those wires really pop ! The wire looms that your using, what are those bolted to ? It doesn't look like valve cover bolts like other ones I have seen.

@RJ Squirrel that is a serious heat sink you got there ! I don't think you should be worried about that moduel holding any excessive heat ! In the one picture it looks like your coil is almost sitting on the valve cover ?

 

[zombezoo]

@zombezoo those wires really pop ! The wire looms that your using, what are those bolted to ? It doesn't look like valve cover bolts like other ones I have seen.

Had to come up with a solution... They are R&M Billet Wire Looms (1104-K), They did not come with hardware to mount to the valve cover, I purchased some Jeep valve cover studs (6035968AA) and trimmed them down to fit the heads hoping I could mount the frames to the stud, Turned out that would not fit against the base of the valve cover on the passenger side and the Tri-Y headers on the drivers side rise up above the base of the valve cover so they would hit there too.

I ended up getting some 1/4 20 threaded couplings and some jam nuts to raise the whole setup up and some 1/4 20 allen bolts to hold them down. Came out pretty good. It just clears the drivers side primary pipe and keeps everything pretty well locked in place so they don't move around and hit the header.

 

[zombezoo]

The plot thickens...

Received the 44011 0.32 ohm coil and installed it today. Within 5 minutes of driving I notice it's breaking up under load. I pull over and check how how the coil is by hand, cool to the touch. I touch the front of the hei module, warm, I touch the heat sink and nearly burn my hand. I head back home and grab my ir thermometer and read almost 150 degrees on the heat sink (car was still idling).

I let it cool down while I swap back to the 1.5 ohm coil. At idle 98 degrees (about 48 degrees today). Went for a drive and heat sink did not get over 100 degrees. I believe the short run with the low ohm coil may have already damaged the hei unit, it does not feel like it runs as strong as it did. I'm going to swap to my spare to confirm.

 

[Canadian1968]

You are grouding the module correct ?