GMPP vs Speartech Harness
I like the non split loom look as well but I am a heavy equipment tech and I always hated some of the stuff engineers designed that is not user friendly or mechanic friendly and definitely not diagnostic friendly, with the non split loom it would be a big hassle if you have to trace a short or replace or add any wires, and I am pretty certain at some point or another you will have to slice open that pretty non split loom.
Last edited by lizeec; Nov 2, 2011 at 11:37 PM.
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On The Tree
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From: Huntington Beach, Ca
I like the non split loom look as well but I am a heavy equipment tech and I always hated some of the stuff engineers designed that is not user friendly or mechanic friendly and definitely not diagnostic friendly, with the non split loom it would be a big hassle if you have to trace a short or replace or add any wires, and I am pretty certain at some point or another you will have to slice open that pretty non split loom.
On The Tree
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From: Mobile Alabama
you obviously have the skill. If you can make the time just do it yourself. Get it all laid out how you want it ran and test the harness. Then it is just depinning the harness and running it piece by piece through the loom. It is time consuming but not difficult.
I used the Speartech harness for my g-body swap. John asked me where I wanted to mount the computer and what emissions equipment I was going to use and then he fabbed it up. John even told me what model year sensors to get that would work best with my application. The harness was so easy to install it was amazing. I thought it was going to be a nightmare but it was far from the case. Everything worked like it was supposed to. I don't know much about the gm performance harness other than tuning the computer on them is a pain for some reason.
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On The Tree
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I don't know much about the gm performance harness other than tuning the computer on them is a pain for some reason.
at this point i may call john and see how much his programming of the ecu is costing. i dont need the service since my tuner is going to set up a base tune to allow me to work out the bugs before we strap it down to the dyno.
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On The Tree
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From: Huntington Beach, Ca
Have you asked that question over on the HP tuners forums. Or email their support guys.
ive also priced building one myself, and im right at the price of the gmpp harness once i include the maf, pedal etc...
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Thats good to know. Hopefully I will be at that point with my Speartech harness this summer. I've been kinda dreading it.
Psiconversion has harnesses for almost any combo, including ls3 with a 4l60e, 4l80e, and 6l80e (which gmpp doesn't).
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I'm about 90 minutes from Tom's River, and my team mate lives in Brick. Do you offer live tuning or just bench tuning?
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