Upgrade horn relay and wiring? High amp alternator - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 8 (permalink) Old Jun 10th, 13, 11:52 AM Thread Starter
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Curley8788
 
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Upgrade horn relay and wiring? High amp alternator

I have a 160 amp alternator. Internally regulated. I have a HUGE voltage drop between the alternator and the battery. I need to upgrade my wiring to and from the horn relay. I planned on adding a couple more 10 gauge wires or so. What is the easiest way to do this? I read somewhere i can replace the horn relay with a junction block of some sort? What should i be looking for and does anyone have a wiring diagram for the new block?

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post #2 of 8 (permalink) Old Jun 10th, 13, 12:37 PM
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Rick
 
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Re: Upgrade horn relay and wiring? High amp alternator

I ran a #8 wire direct from alternator to battery; left all other wiring intact. Works fine.

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post #3 of 8 (permalink) Old Jun 10th, 13, 12:43 PM
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Jason
 
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Re: Upgrade horn relay and wiring? High amp alternator

http://madelectrical.com/catalog/cn-1.shtml

Here is what your looking for. Be sure to look at the Electrical Tech section on their site as well.
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post #4 of 8 (permalink) Old Jun 10th, 13, 3:56 PM Thread Starter
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Curley8788
 
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Re: Upgrade horn relay and wiring? High amp alternator

any schematics available?

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post #5 of 8 (permalink) Old Jun 10th, 13, 4:45 PM
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Bart
 
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Re: Upgrade horn relay and wiring? High amp alternator

(When upgrading from OG alt to CS130) Not to steal the thread but I read the tech article on this website AND it says to connect the outside wires on the voltage regulator together - but it shows them as being blue and brown. On my '69 Im almost positive theyre red and red.......one with a fusable link.

Do I still do as the tech article says?

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post #6 of 8 (permalink) Old Jun 10th, 13, 5:12 PM
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Re: Upgrade horn relay and wiring? High amp alternator

Quote:
Originally Posted by barrrf View Post
(When upgrading from OG alt to CS130) Not to steal the thread but I read the tech article on this website AND it says to connect the outside wires on the voltage regulator together - but it shows them as being blue and brown. On my '69 Im almost positive theyre red and red.......one with a fusable link.

Do I still do as the tech article says?
Are you looking at the horn relay or the voltage regulator. The main splice off the horn relay, that feeds the fuse box, has a fusible link. No real current going through the voltage regulator and it does not require a fusible link.

Hank

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post #7 of 8 (permalink) Old Jun 10th, 13, 9:32 PM Thread Starter
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Curley8788
 
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Re: Upgrade horn relay and wiring? High amp alternator

Quote:
Originally Posted by RCBach View Post
I ran a #8 wire direct from alternator to battery; left all other wiring intact. Works fine.

this is what i did, along with a 4 gauge from the battery negative to the frame. now i have no real voltage drop which is great. I will have to check it with the fans on though...


also, my alternator is a DR44 style which is normally computer controlled. Since i have no computer, my only option is to hook it up one wire, which it's output defaults to 13.8 volts. Do you see any problem with 13.8 volts to the battery vs the normal 14.4?

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post #8 of 8 (permalink) Old Jun 11th, 13, 4:05 PM
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Wink Re: Upgrade horn relay and wiring? High amp alternator

Quote:
Originally Posted by Finally View Post
No real current going through the voltage regulator and it does not require a fusible link.
The voltage regulator #3 terminal has a 20 ga orange colored fuse link to protect the field circuitry and generator warning light. The #3 terminal is connected to the main charging wire via a splice in the harness.
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