C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Oct 5, 2024 | 11:49 AM
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From: ROTONDA WEST FL KINGSTON MA
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Changing from 10 si to cs144.what is the best way to rewire this? Alt,horn relay,solenoid battery .what wire gauge and fuses or fusible links.i have 61 amp now but i believe i need more power for the electric fans
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Old Oct 5, 2024 | 12:24 PM
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Here's a simple diagram- do not use the factory charge wire
PLUS the upgraded charge wire to the starter battery
Basically - leave the factory wires alone- but protect the new larger wires with a fuse-



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Old Oct 5, 2024 | 12:37 PM
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SILVER427
My 68 had a 10 gauge lead from the horn relay to the starter B+ post. Not a good idea but I left it like that for years.....
I finally swapped in a 6-gauge lead from the horn relay to the starter post with a soldered in 10-gauge Fusible Link.
I just relocated the ammeter leads to monitor that path - I can look that up if you're going to keep the ammeter.
Works fine--- it was so easy i shoulda done the lead swap way back when I swapped in the CS-144.....but there it is.

I'll go find the adapter you need (or you can solder in your own resistor if you want to do that) ..... pretty sure there will be a difference between the 68 and the 69 so what year are you working on.
On my 68 I bypassed the external regulator and had gone to a 12-SI prior to going to the CS-144 so I just bought an adapter to go 12si to the CS-144.
I *think* the 69 is internally regulated so you can buy an adapter for the 12si to cs-144 directly.
Gimme a sec.....



Originally Posted by SILVER427
Changing from 10 si to cs144.what is the best way to rewire this? Alt,horn relay,solenoid battery .what wire gauge and fuses or fusible links.i have 61 amp now but i believe i need more power for the electric fans
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Old Oct 5, 2024 | 12:42 PM
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SILVER427
Here is an old post. Links probably don't work but I typed in the instructions you need anyway to determine the adapter required:
https://www.corvetteforum.com/forums...post1560775978

If you are not going to add your own resistor then check the interwebs for adapters. I found a lot cheaper options online than at the local stores..... like dramatically cheaper as you can imagine.
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