Engine Harness from Scratch?
12-14-2006, 07:23 PM
#1
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Engine Harness from Scratch? anybody ever do that? with no stock harness? i tried our electornics sponsors an cant seem to find an ecu connector though.. ive heard how they are rediculously exspensive. if anyone has a mangled harness they ont need ill take it off your hands if it means an easier wiring job.
12-14-2006, 08:03 PM
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Originally Posted by ricksvt
Have you tried Speartech?
Rick
Rick
12-14-2006, 10:00 PM
#5
Originally Posted by Wnts2Go10O
$$$ and i believe john only does ls2 harnesses now. least thats what i read on here.
What I had read was that he stopped doing direct plug in harnesses for cars that he has not already done. It takes a lot of time to research what wires you need to tap into on each and every car, and with the new LS2 conversions coming out he didn`t have the time. He will still handle the LS1 engine side of the harness, but he didn`t want to have his people making adapter harnesses to plug directly into the conversion vehicles fuse box, dashboard, chassis harness etc.
12-14-2006, 10:59 PM
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Originally Posted by G-Body
Where did you see that? I know that he is doing a lot of LS2/LS7 stuff now, but he still does the LS1 harnesses.
What I had read was that he stopped doing direct plug in harnesses for cars that he has not already done. It takes a lot of time to research what wires you need to tap into on each and every car, and with the new LS2 conversions coming out he didn`t have the time. He will still handle the LS1 engine side of the harness, but he didn`t want to have his people making adapter harnesses to plug directly into the conversion vehicles fuse box, dashboard, chassis harness etc.
What I had read was that he stopped doing direct plug in harnesses for cars that he has not already done. It takes a lot of time to research what wires you need to tap into on each and every car, and with the new LS2 conversions coming out he didn`t have the time. He will still handle the LS1 engine side of the harness, but he didn`t want to have his people making adapter harnesses to plug directly into the conversion vehicles fuse box, dashboard, chassis harness etc.
. but yea, its money that i dont have. so i will either find a mangled stocker or build my own and map it as i go. (im one of those people that tends to over complicate things sometimes)datboi- thats perfect. thank you
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12-14-2006, 11:14 PM
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I have a feeling after you buy all the connectors you will have been dollars ahead to just buy a used harness from somebody then modify it. I got my harness for around $100.
12-14-2006, 11:54 PM
#9
DON'T try to make one from scratch. bad idea. hack up an existing harness.
Reasons why:
1. cheaper. you will not be able to buy all the connectors for cheaper
2. proper. gm made it right the first time. you may "upgrade" a little (ie, heavier gage wires for fuel pump, etc. but overall, it's done right. also, the color coding can be immensely useful. also, what if some mechanic (other than yourself) works on the car?
3. easier. it's already made... just splice here and there. it's been done many times and there are even ~$100 kits on ebay (not 100% on them as i have not used one).
I thought about doing a fully custom harness and came to the above conclusions. You may find differently, but I doubt it...
Reasons why:
1. cheaper. you will not be able to buy all the connectors for cheaper
2. proper. gm made it right the first time. you may "upgrade" a little (ie, heavier gage wires for fuel pump, etc. but overall, it's done right. also, the color coding can be immensely useful. also, what if some mechanic (other than yourself) works on the car?
3. easier. it's already made... just splice here and there. it's been done many times and there are even ~$100 kits on ebay (not 100% on them as i have not used one).
I thought about doing a fully custom harness and came to the above conclusions. You may find differently, but I doubt it...
12-15-2006, 01:03 AM
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well, if i can find one, then ill probably use it. everyone just wnts to sell theres with the damn motor. ive been haveing no luck hence why i came up with hte idea of just makeing one.
12-15-2006, 10:32 AM
#12
Originally Posted by datboibrad
Andy1
12-15-2006, 12:46 PM
#13
i got my c5 harness for $100 from lingenfelter. a STEAL, i think. in either case, troll around the for-sale section and make a "favorite search" in ebay. you'll get a harness for < $200 in not too long.
conversion harnesses are pricey, but worth if it you don't know how (or don't want to) to splice wires.
conversion harnesses are pricey, but worth if it you don't know how (or don't want to) to splice wires.
12-16-2006, 02:55 AM
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Originally Posted by nycab
i got my c5 harness for $100 from lingenfelter. a STEAL, i think. in either case, troll around the for-sale section and make a "favorite search" in ebay. you'll get a harness for < $200 in not too long.
conversion harnesses are pricey, but worth if it you don't know how (or don't want to) to splice wires.
conversion harnesses are pricey, but worth if it you don't know how (or don't want to) to splice wires.
12-16-2006, 03:18 PM
#15
heh, i wasn't implying anything, just stating my opinion. For the record, though, a lot of guys doing conversions wouldn't gasp at paying $400 or so for a harness. Getting the car done right and fast are is their priority, not necessarily saving money. For me, the experience more than makes up for the lost time.
12-16-2006, 10:13 PM
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Originally Posted by nycab
heh, i wasn't implying anything, just stating my opinion. For the record, though, a lot of guys doing conversions wouldn't gasp at paying $400 or so for a harness. Getting the car done right and fast are is their priority, not necessarily saving money. For me, the experience more than makes up for the lost time.
speaking of which... anyone have a stock 99+ standard trans ls1 harness?
12-17-2006, 01:35 AM
#18
i think its more cost effective to make your own harness using a factory harness to cut up and splice. i like doing wiring so ill spend tons of time making it just how i want it. plus by the time you buy all the connectors and proper color wires and stuff you could have just picked up a custom harness.
12-17-2006, 03:52 AM
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Getting the wiring right is maybe the single hardest part of a swap, and the thing that separates the hack jobs from the cars that look and run like factory. If you can buy a good quality harness, thats great, but if its anything less then hell might as well do it yourself, but I would still want a factory harness to work from and borrow connectors.
Whats tempting to me is to splice up a factory harness, get it actually working, then make a wiring jig using that harness and make a new harness as clean as possible with the best new wires etc.
IMHO how to save a few hundred bucks is to forget about doing a swap and drive a Honda. Most of us need to watch our budgets close, but not buying some things no matter what they cost can kill the final product. Swap cars with flakey electricals are called forsale best offer.
Whats tempting to me is to splice up a factory harness, get it actually working, then make a wiring jig using that harness and make a new harness as clean as possible with the best new wires etc.
IMHO how to save a few hundred bucks is to forget about doing a swap and drive a Honda. Most of us need to watch our budgets close, but not buying some things no matter what they cost can kill the final product. Swap cars with flakey electricals are called forsale best offer.
