Alternator wire
Thread Starter
2nd Gear
Joined: Jun 2020
Posts: 2
Likes: 0
Alternator wire
I’m working on replacing all the Hot and ground wires on a c6 with an LS2. I can’t glean from wiring diagrams or otherwise where the stock alternator output wire goes. I’m assuming the fuse box, but the looming gets a little ambiguous behind the motor. Thanks!
Melting Slicks
Joined: Jul 2005
Posts: 2,990
Likes: 346
From: Mt. Pleasant S.C.
On a z06 it goes around the back of the motor and down to the main terminal on the starter. On an LS model I'd imagine it does the same.
Many of us have routed it to the jumper cable stud on the fuse box. I made my own but there is a company that makes a kit all preassembled.
https://www.saccitycorvette.com/C6-Big3.html
Many of us have routed it to the jumper cable stud on the fuse box. I made my own but there is a company that makes a kit all preassembled.
https://www.saccitycorvette.com/C6-Big3.html
Last edited by Sox-Fan; Jun 22, 2020 at 11:03 AM. Reason: accidentally linked to the c5 kit.
Thread Starter
2nd Gear
Joined: Jun 2020
Posts: 2
Likes: 0
On a z06 it goes around the back of the motor and down to the main terminal on the starter. On an LS model I'd imagine it does the same.
Many of us have routed it to the jumper cable stud on the fuse box. I made my own but there is a company that makes a kit all preassembled.
https://www.saccitycorvette.com/C6-Big3.html
Many of us have routed it to the jumper cable stud on the fuse box. I made my own but there is a company that makes a kit all preassembled.
https://www.saccitycorvette.com/C6-Big3.html
thanks for the reply. I made my own kit, but followed their directions loosely. I did 4ga wire all around as follows:
Positive: alt-bat, fuse box-bat, bat-starter
Neg: bat-block/head, bat-Chasis
I capped the stock alt wire, since I couldn’t figure out where it led. But if the stock routing is alt-starter, that should just make starting smoother and add some more positive redundancy.
correct?
thanks!
Last edited by Djdnav; Jun 22, 2020 at 11:10 AM.
Intermediate
Joined: May 2021
Posts: 28
Likes: 2
From: Ormond Beach FL
I feel the pain on the alternator wire. I just replaced mine and routed #4 AWC behind motor and down to the starter post. The only way to get there was next to the cat converter. So I purchased heat insulator to protect the wire. The starter is located just barely an inch from the convertor so insulation is a must.
Or you can route it straight to the positive battery post. Electrically there is no difference I have been made aware of.
Or you can route it straight to the positive battery post. Electrically there is no difference I have been made aware of.
Le Mans Master
Joined: Oct 2012
Posts: 9,366
Likes: 969
From: Out back
thanks for the reply. I made my own kit, but followed their directions loosely. I did 4ga wire all around as follows:
Positive: alt-bat, fuse box-bat, bat-starter
Neg: bat-block/head, bat-Chasis
I capped the stock alt wire, since I couldn’t figure out where it led. But if the stock routing is alt-starter, that should just make starting smoother and add some more positive redundancy.
correct?
thanks!
Positive: alt-bat, fuse box-bat, bat-starter
Neg: bat-block/head, bat-Chasis
I capped the stock alt wire, since I couldn’t figure out where it led. But if the stock routing is alt-starter, that should just make starting smoother and add some more positive redundancy.
correct?
thanks!
Burning Brakes
Joined: Jun 2015
Posts: 1,187
Likes: 306
From: Shelbyville Kentucky
I did a big 3 upgrade. I left the existing wiring as is. Then added a heavy gauge wire from the Alt+ to the Batt+, and a heavy gauge wire from the Batt- to the passenger cylinder head. Also connected to two heads via a wire on the back back of them(this was probably overkill).
Stock wiring is already grounded to the engine block.
Stock wiring is already grounded to the engine block.
