Is there a how-t0-thread on making ur own harness?
Is there a how-t0-thread on making ur own harness? I know there is plenty of info on lt1swap.com but was wondering if there is a thread or site that shows ur how to dress up the harness?
sure i can just order one but that takes all the fun out of making ur own harness.
sure i can just order one but that takes all the fun out of making ur own harness.
well for the most part...if u have original harness...everything to the sensors are at length already...depending on where u put ur pcm...u mite have to extend the wiring at that point...best way to dress it up is to plug everything up...and wireloom and tape accordingly...
I use.. the nylon mesh covering. It's not as easy to use, and has to be put on B4 the connectors. it looks ALOT neater, is easier to route than the convoluted plastic stuff.
More expensive, too.
As for starting from scratch.. Really not cost effective. Wire supplies, connectors, tools, terminals, are not cheap, when compared to buying a harness.
More expensive, too.
As for starting from scratch.. Really not cost effective. Wire supplies, connectors, tools, terminals, are not cheap, when compared to buying a harness.
Last edited by Old Geezer; Jul 4, 2010 at 10:20 AM.
The connectors themselves is what kills you! Im an engineer at a radio frequency power supply company. Each unit we make has its own custom harness, once you have one original to work with then you can make exact copies pretty easy, or modify accordingly. But to get the connectors you need to source them out on mouser or digikey. And make sure you have enough different color wires to not confuse yourself.
I was seriously thinking of making harnesses myself, that is if i can make them and sell them cheaper than the companies already doing so, and make a profit.
I was seriously thinking of making harnesses myself, that is if i can make them and sell them cheaper than the companies already doing so, and make a profit.
It could be done much cheaper start up, but cost per harness goes up with that. For instance, I think min quantity for the PCM pins was 10,000.
I've got a bill of material made up for making basic 4.8/5.3/6.0 harnesses...its more like about $50-60 in parts per harness. If you buy in min quantities from one of Delphi's direct distributors. I think I was quoted about $7000 to get everything needed, in min quantities. Including TXL wire matching OE color.
It could be done much cheaper start up, but cost per harness goes up with that. For instance, I think min quantity for the PCM pins was 10,000.
It could be done much cheaper start up, but cost per harness goes up with that. For instance, I think min quantity for the PCM pins was 10,000.
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My methods are based off what I read on busta9870's website and many others
I tallied costs to be around $330 using mouser.com with qty = 1 not counting wire, specialty crimpers and a few impossible to find connectors. Buying bulk of 50 or so may drop it $80-100
Build time is similar to a beginning to end rework, so expect 16-20 hours. It makes $900 for a brand new harness seem reasonable
I tallied costs to be around $330 using mouser.com with qty = 1 not counting wire, specialty crimpers and a few impossible to find connectors. Buying bulk of 50 or so may drop it $80-100
Build time is similar to a beginning to end rework, so expect 16-20 hours. It makes $900 for a brand new harness seem reasonable
gREAT info and thanks for all the links and the pics.
How would someone go by putting that mesh looking loom?
splitloom looks nice but ive seen some with a net looking loom.
How would someone go by putting that mesh looking loom?
splitloom looks nice but ive seen some with a net looking loom.
It goes over before the PCM is repinned for a rebuilt harness. New harness guys start at the PCM and cut the sensor wires to fit. For them the mesh is slid over before the sensor connectors are crimped on
Teching In
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POCKET:My methods are based off what I read on busta9870's website and many others
I tallied costs to be around $330 using mouser.com with qty = 1 not counting wire, specialty crimpers and a few impossible to find connectors. Buying bulk of 50 or so may drop it $80-100
Build time is similar to a beginning to end rework, so expect 16-20 hours. It makes $900 for a brand new harness seem reasonable
I tallied costs to be around $330 using mouser.com with qty = 1 not counting wire, specialty crimpers and a few impossible to find connectors. Buying bulk of 50 or so may drop it $80-100
Build time is similar to a beginning to end rework, so expect 16-20 hours. It makes $900 for a brand new harness seem reasonable
Last edited by rlehto; Nov 3, 2012 at 09:02 AM.
Can a lot be sourced from other vehicles And re pinned Using New pins and wires cut to your Desired length?
01+ S10/Blazers are very similar to LSx harnesses, even use the same PCM. Grab a few more connectors from the JY like injectors and its a $50 LSx harness
two year old thread
There is A LOT more that goes into making a harness than just connectors and wire.
FWIW if you purchase the Delphi repair crimpers the terminals are supposed to be soldered and crimped.
If you buy the production tooling that comes with hand frames and dies you will easily eclipse the 1,000 mark in just crimping tools to PROPERLY build a harness. Ask me how I know.
That is just one unseen aspect, there are still many, many more. I have no idea where people believe that they are getting ripped off by all the harness companies. Granted some have some high prices, but you should consider what goes into a QUALITY harness.
Is the 30-40 hours you would spend making your own harness worth saving 150-200 bucks? That means you got paid 5 bucks an hour for close to a weeks worth of work.
FWIW if you purchase the Delphi repair crimpers the terminals are supposed to be soldered and crimped.
If you buy the production tooling that comes with hand frames and dies you will easily eclipse the 1,000 mark in just crimping tools to PROPERLY build a harness. Ask me how I know.
That is just one unseen aspect, there are still many, many more. I have no idea where people believe that they are getting ripped off by all the harness companies. Granted some have some high prices, but you should consider what goes into a QUALITY harness.
Is the 30-40 hours you would spend making your own harness worth saving 150-200 bucks? That means you got paid 5 bucks an hour for close to a weeks worth of work.
" was seriously thinking of making harnesses myself, that is if i can make them and sell them cheaper than the companies already doing so, and make a profit."
My bud does high end Vette conversions, is an automation engineer, has a long career in the making, installing harnesses.
He too, thot he'd do his own harnesses. Wound up at <$5/hr! His harnesses are now $1200, and are done only for cars in his shop.
It didn't take long to figure that shop rate @$75, vs $5 was a no brainer.
So, the guys that do these, and sell for 6-800$, are where I go for what I need.
Rework on a stocker.. A few evenings at the kitchen table, some solder, shrink wrap, and it's a useable product..Certainly, not a $1200 work of art, tho...
My bud does high end Vette conversions, is an automation engineer, has a long career in the making, installing harnesses.
He too, thot he'd do his own harnesses. Wound up at <$5/hr! His harnesses are now $1200, and are done only for cars in his shop.
It didn't take long to figure that shop rate @$75, vs $5 was a no brainer.
So, the guys that do these, and sell for 6-800$, are where I go for what I need.
Rework on a stocker.. A few evenings at the kitchen table, some solder, shrink wrap, and it's a useable product..Certainly, not a $1200 work of art, tho...
Joined: Jun 2011
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From: Land of the Mormon's although I'm not one of them
" was seriously thinking of making harnesses myself, that is if i can make them and sell them cheaper than the companies already doing so, and make a profit."
My bud does high end Vette conversions, is an automation engineer, has a long career in the making, installing harnesses.
He too, thot he'd do his own harnesses. Wound up at <$5/hr! His harnesses are now $1200, and are done only for cars in his shop.
It didn't take long to figure that shop rate @$75, vs $5 was a no brainer.
So, the guys that do these, and sell for 6-800$, are where I go for what I need.
Rework on a stocker.. A few evenings at the kitchen table, some solder, shrink wrap, and it's a useable product..Certainly, not a $1200 work of art, tho...
My bud does high end Vette conversions, is an automation engineer, has a long career in the making, installing harnesses.
He too, thot he'd do his own harnesses. Wound up at <$5/hr! His harnesses are now $1200, and are done only for cars in his shop.
It didn't take long to figure that shop rate @$75, vs $5 was a no brainer.
So, the guys that do these, and sell for 6-800$, are where I go for what I need.
Rework on a stocker.. A few evenings at the kitchen table, some solder, shrink wrap, and it's a useable product..Certainly, not a $1200 work of art, tho...
Once you have all the tools and if you buy the materials in bulk it will reduce the component expense, but the materials themselves are not cheap to build one from scratch. (Cost of the proper Mil-W-22759 wire alone is $$; not even mentioning the sleeving, connectors, etc.)