Holley ECU

[acefuture]

I went terminator and put it inside of a "sealed" outdoor electrical box that I got for $10 at home depot. Then put it inside of my rear luggage container. Works great. I used the CBM harness. It's okay... Wires are extensively too long, sheathing is mediocre, and I had to make some adjustments. In hindsight I would've gone with the Redline one. The connectors they use on theirs seem to be a bit nicer

 

[wesinls]

I have two of the Holley harnesses - one on the sand car and another on a street truck - both working fine.

Someday I want to buy these two items from Holley and make a new harness...patience, time. various shrink wrap sizes, wire looms. and a handful of specialty tools and make the harness exactly how I want. The "flying lead" harness has the two main plugs for the terminator with a 15ft wire for each lead, and the connector kit is all the plug / connectors needed for an LS engine...there's not a lot of info out there on the connector kit, I'm not positive if it comes with the injector connectors, etc. Would be a fun summer project.

 

[Badbar88]

I just finished installing a Terminator X. I used a simple weatherproof box and cut a window in it and installed a piece of plexiglass. Its mounted under the back seat. I can look back from the driver seat and see the indicator lights. Kinda cool I think

 

[Kraut_n_Rice]

I have two of the Holley harnesses - one on the sand car and another on a street truck - both working fine.

Someday I want to buy these two items from Holley and make a new harness...patience, time. various shrink wrap sizes, wire looms. and a handful of specialty tools and make the harness exactly how I want. The "flying lead" harness has the two main plugs for the terminator with a 15ft wire for each lead, and the connector kit is all the plug / connectors needed for an LS engine...there's not a lot of info out there on the connector kit, I'm not positive if it comes with the injector connectors, etc. Would be a fun summer project.

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That kinda looks like you would still need the coil sub-harness, as well as the one for the injectors.

 

[daveH]

I have two of the Holley harnesses - one on the sand car and another on a street truck - both working fine.

Someday I want to buy these two items from Holley and make a new harness...patience, time. various shrink wrap sizes, wire looms. and a handful of specialty tools and make the harness exactly how I want. The "flying lead" harness has the two main plugs for the terminator with a 15ft wire for each lead, and the connector kit is all the plug / connectors needed for an LS engine...there's not a lot of info out there on the connector kit, I'm not positive if it comes with the injector connectors, etc. Would be a fun summer project.

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$400 for this harness? the cheap TXL wire Holley uses is about 5-7 CENTS a foot. i doubt there is $50 is wire to build this. then you have about $30 for the two ECU connectors.

If you want a quality harness, just build it your self and do yourself a favor and use Tefzel wire.

 

[wesinls]

$400 for this harness? the cheap TXL wire Holley uses is about 5-7 CENTS a foot. i doubt there is $50 is wire to build this. then you have about $30 for the two ECU connectors.

If you want a quality harness, just build it your self and do yourself a favor and use Tefzel wire.

True - but 40 in wire if all the same color, plus connectors - plus more confusing as IF you use this in conjunction with the Holley manuals - your color codes match - making troubleshooting a lot easier. But agreed, making yourself is nice - but also has its pain points.

In other words - get a price to buy all the different color wires, connectors, gauges, etc - it's more than 40, prob more than 400.

 

[Rockwood]

I just finished installing a Terminator X. I used a simple weatherproof box and cut a window in it and installed a piece of plexiglass. Its mounted under the back seat. I can look back from the driver seat and see the indicator lights. Kinda cool I think

I went terminator and put it inside of a "sealed" outdoor electrical box that I got for $10 at home depot. Then put it inside of my rear luggage container. Works great. I used the CBM harness. It's okay... Wires are extensively too long, sheathing is mediocre, and I had to make some adjustments. In hindsight I would've gone with the Redline one. The connectors they use on theirs seem to be a bit nicer

I did similar for my Nissan ECU: perused Home Depot until I found a NEMA enclosure that fit everything, then hole-sawed a hole that matched the firewall grommet size. ECU and relays were bolted directly to the box with felt washers to mostly seal it up. Barely any dust in there after 18 seasons of use.

True - but 40 in wire if all the same color, plus connectors - plus more confusing as IF you use this in conjunction with the Holley manuals - your color codes match - making troubleshooting a lot easier. But agreed, making yourself is nice - but also has its pain points.

In other words - get a price to buy all the different color wires, connectors, gauges, etc - it's more than 40, prob more than 400.

Yep. Minimum order is where you get killed, and small spools are expensive per foot. If you're building it for fun with a 1-2 unit run, it's gonna cost a fortune.

 

[daveH]

True - but 40 in wire if all the same color, plus connectors - plus more confusing as IF you use this in conjunction with the Holley manuals - your color codes match - making troubleshooting a lot easier. But agreed, making yourself is nice - but also has its pain points.

In other words - get a price to buy all the different color wires, connectors, gauges, etc - it's more than 40, prob more than 400.

pro wire sells 1 foot increments of 20ga TXLwire for 15 cents. 22ga striped wire for about 18 cents.

so about $80 for 400ft of wire. you can use the holley color code and match it all up.