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here is a LS1 retrofit schematic

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Old Aug 18, 2006 | 11:40 PM
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Default here is a LS1 retrofit schematic

the wiring is a piece of cake thanks to you guys! i tried to make this drawing as simple as posible. i have even broken it down into three catogories- complete, fuel/ign, and fans. just trying to give back some of the knowledge that some of you have shared with me. hope it may help someone.

now if i could just figure out where i'm going to mount the pcm and the relays. i'm thinking everything is going under the right side dash, just for the sake of keeping it out of sight.....hummmmm....any sugestions?

once again, thank you for your help!!

*EDIT-see post #5 for updated schematics.

chris p

Last edited by chrisp3; Aug 20, 2006 at 12:37 AM. Reason: updated wiring diagrams
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Old Aug 19, 2006 | 12:00 AM
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is this 98 only???
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Old Aug 19, 2006 | 12:06 AM
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Yes, the 99+ are different. If you are looking for 99+ info check my post in the sticky FAQ, it is just written out though. I can`t draw diagrams like that .
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Old Aug 19, 2006 | 07:46 AM
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Chrisp3, can you make us a drawing for the 99+ years?
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Old Aug 19, 2006 | 09:21 AM
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hey guys,

disregard that first set of schematics, there were a couple of errors. the 'oil pressure light' is really a 'low oil level light' and the 'hot' and 'switched hot' that connect to the relays have also been changed. (i had them reversed)
thanks to G-BODY for pointing this out to me, and helping me correct it.
Attached Files
File Type: pdf
ls1 wiring NEW.pdf (82.7 KB, 8108 views)
File Type: pdf
ls1 wiring FANS NEW.pdf (31.1 KB, 3405 views)
File Type: pdf
ls1 wiring FUEL & IGN NEW.pdf (42.3 KB, 5334 views)
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Old Aug 19, 2006 | 09:23 AM
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Originally Posted by LS1MCSS
Chrisp3, can you make us a drawing for the 99+ years?
sure.
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Old Aug 19, 2006 | 09:41 AM
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Default wacky lines

by the way, i don't know why some of the lines are thicker than others, because i didn't draw it that way. it must have happened when i converted my CAD drawing to PDF, somehow.
hope this isn't a problem.

chrisp3
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Old Aug 19, 2006 | 01:11 PM
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Wow, those are great !!!!
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Old Aug 19, 2006 | 02:56 PM
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i say someone should do this for 99+!!!! this would be very helpful. this would get me on the road fast.
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Old Aug 19, 2006 | 04:25 PM
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thats great. please add it to the FAQ post!!
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Old Aug 19, 2006 | 07:16 PM
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Originally Posted by kosmo38
i say someone should do this for 99+!!!! this would be very helpful. this would get me on the road fast.
kosmo38,
I used my schematic to wire my car and i think it made things go a little easier seeing the big picture, so to speak. but, G-BODY has it posted in the faq section in a word document in written form, so there is really nothing stopping you. all i did was make what he wrote in picture form.
i'll try to do the 99+ tonight, depending on what my girlfriend has in store for me
just from glancing at what G-body wrote in the faq, it looks as if there is not that much of a difference. and since i still have the cad file of the 98 it shouldn't be hard at all to switch some things around.

chris p
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Old Aug 20, 2006 | 01:20 PM
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Thanks great info. I asked this before and am still a little confused. Whats the best way to power up the factory part of the 62 corvette harness?
Headlights, taillights, fuse pannel etc. tx
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Old Aug 21, 2006 | 02:53 PM
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Originally Posted by kosmo38
i say someone should do this for 99+!!!! this would be very helpful. this would get me on the road fast.
I will do that for mine soon, when I start to connect all my wires. Maybe someone else will do it before me...


Jan
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Old Aug 23, 2006 | 11:38 AM
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Originally Posted by chrisp3
kosmo38,
I used my schematic to wire my car and i think it made things go a little easier seeing the big picture, so to speak. but, G-BODY has it posted in the faq section in a word document in written form, so there is really nothing stopping you. all i did was make what he wrote in picture form.
i'll try to do the 99+ tonight, depending on what my girlfriend has in store for me
just from glancing at what G-body wrote in the faq, it looks as if there is not that much of a difference. and since i still have the cad file of the 98 it shouldn't be hard at all to switch some things around.

chris p
Chris Wow those drawings for the 98 are great! PLEASE 99+ Thanks John
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Old Aug 23, 2006 | 01:31 PM
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Originally Posted by dsrour
Thanks great info. I asked this before and am still a little confused. Whats the best way to power up the factory part of the 62 corvette harness?
Headlights, taillights, fuse pannel etc. tx

I believe you will need to keep your original body harness and fuse panel for the items you mentioned. Or, get you a new aftermarket one from Painless or another supplier. If you get a new one, get enough capacity (circuits and proper fuse sizes) to power all of your body circuits and the new PCM, fuel pump, fans, and any other accessories you will be adding. And get a few extras for future accessories you may want to add.

Last edited by 55chevy; Aug 23, 2006 at 02:06 PM.
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Old Aug 24, 2006 | 12:46 AM
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AWESOME!!! I should be able to use my stock 5.0 fox body guage cluster with this wiring schematic, correct?
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Old Sep 19, 2006 | 11:46 AM
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before someone was asking if this could be done for a 1999 harness. Well I had some free time so i figured i would write one up. If anyone sees anything wrong with it...just let me know so i can correct it ASAP.

J-

-edit-
I tried to include everything in the harness...A/C and all so for those who want it will have it as well.
Attached Files
File Type: pdf
1999 LS1 Retrofit Wiring.pdf (28.8 KB, 5385 views)
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Old Sep 19, 2006 | 12:17 PM
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Originally Posted by chrisp3
the wiring is a piece of cake thanks to you guys! i tried to make this drawing as simple as posible. i have even broken it down into three catogories- complete, fuel/ign, and fans. just trying to give back some of the knowledge that some of you have shared with me. hope it may help someone. chris p
Posting these schematics was a very cool thing to do; thank-you.
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Old Sep 19, 2006 | 12:39 PM
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Originally Posted by Jhankinson
before someone was asking if this could be done for a 1999 harness. Well I had some free time so i figured i would write one up. If anyone sees anything wrong with it...just let me know so i can correct it ASAP.

J-

-edit-
I tried to include everything in the harness...A/C and all so for those who want it will have it as well.
Great job, this will help many in the future. Thanks!
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Old Sep 19, 2006 | 01:17 PM
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I get "the file is damaged and could not be repaired" when clicking on the 99 ls1 pdf?
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