68 Camaro Electrical Fuse Box - Team Camaro Tech
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post #1 of 9 (permalink) Old Jan 24th, 18, 07:27 AM Thread Starter
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68 Camaro Electrical Fuse Box

Upgrading the RS vacuum option for RS to Detroit Speed electric motors. Didn't create enough vacuum. Should be easy install. One of the last steps of install is to provide constant battery power. The original wiring harness has been replaced but the stock fuse box has an open terminal labeled battery. I go to use this terminal but after some diagnostics find to my surprise there is no constant power to this terminal. Additionally I noticed my upper fuse on panel is popping (lighter courtesy lights). What I'm wanting to sort out is the constant battery terminal fused? Is there any relationship between this terminal and the CLK LTR CTSY 20 amp fuse.
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post #2 of 9 (permalink) Old Jan 24th, 18, 08:39 AM
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Re: 68 Camaro Electrical Fuse Box

Here is the fuse block in my 68 Chevy II Nova with the identified "taps" for adding optional accessories.



The taps are protected by a specific neighboring fuse in the fuse block.

These "taps" are limited as to how much amperage one can pull out of them to where if a tap like the one marked BAT being protected by the neighboring 20A fuse for the CLK LTR CTSY circuit and the circuit is already pulling 10A, then technically you could only add an additional 10A off of the "tap". If in your case, if the additional amperage you need for the motors is let's say 15A and the circuit is already requiring 10A, then this will not work as the 20A fuse will blow.

While the fuse holder can take a larger 30A or 35A fuse, never do that as the wires on that circuit are not sized for that amount of current.

Jim

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post #3 of 9 (permalink) Old Jan 24th, 18, 02:49 PM Thread Starter
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Re: 68 Camaro Electrical Fuse Box

This excellent information. I suspected the BAT (tap) is stated was likely fused didn't know where and how much. I was running two additional draws off the BAT. i will look for a different power source or run directly from battery. Thanks.
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post #4 of 9 (permalink) Old Jan 24th, 18, 03:05 PM
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Re: 68 Camaro Electrical Fuse Box

Quote:
Originally Posted by TDELLIOTT View Post
This excellent information. I suspected the BAT (tap) is stated was likely fused didn't know where and how much. I was running two additional draws off the BAT. i will look for a different power source or run directly from battery. Thanks.
Just make sure you put a properly sized inline fuse, breaker, or fusible link on the wire as close as you can to the battery.

Jim
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post #5 of 9 (permalink) Old Jan 24th, 18, 03:48 PM Thread Starter
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Re: 68 Camaro Electrical Fuse Box

The Detroit Speed comes with a fusible link in kit. My battery is in trunk with a FORD type solenoid in front of car where all power runs through. Will run wire along rad support back through fire wall to Detroit speed wiring harness. Thanks again for the help.
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post #6 of 9 (permalink) Old Jan 24th, 18, 05:36 PM
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Re: 68 Camaro Electrical Fuse Box

Quote:
Originally Posted by TDELLIOTT View Post
The Detroit Speed comes with a fusible link in kit. My battery is in trunk with a FORD type solenoid in front of car where all power runs through. Will run wire along rad support back through fire wall to Detroit speed wiring harness. Thanks again for the help.
I'm glad I could help. Just keep in mind, the original wiring on the car was only meant to handle so much and you cannot just randomly add things here or there as one could overload things. You will also find out that the more you add, the more power you will need out of an alternator to keep up with things.

Jim

1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)

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post #7 of 9 (permalink) Old Jan 25th, 18, 03:10 AM
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Re: 68 Camaro Electrical Fuse Box

i added an auxiliary fuse box. used a 10 ga. jumper wire from the battery tab on the original fuse box to the new box
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post #8 of 9 (permalink) Old Feb 5th, 18, 09:22 AM
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Re: 68 Camaro Electrical Fuse Box

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Originally Posted by flat tire View Post
i added an auxiliary fuse box. used a 10 ga. jumper wire from the battery tab on the original fuse box to the new box
You do realize that "Batt" tab is protected by the 20A courtesy lamp fuse ?? If you exceed the 20 amp rating (Total) the fuse will blow.

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post #9 of 9 (permalink) Old Feb 5th, 18, 02:47 PM
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Re: 68 Camaro Electrical Fuse Box

knock on wood. it hasn't in 2 years
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