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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: GUITAR1989 on November 11, 2010, 12:24:47 am

Title: relay kit
Post by: GUITAR1989 on November 11, 2010, 12:24:47 am

Hey guys i got my relay kit in and put in some Hella H4 headlights :) they look great. Im just wondering if i need to throw some fuses in the harness. I read a link that captkaos linked in someone elses poste about headlight upgrades but the write up was on a home made relay kit so im not sure if the kit is different and doesnt need to have fuses. If it does what size wire and fuses should i use?

Title: Re: relay kit
Post by: Armor on November 11, 2010, 07:05:11 am

when i did mine i ran the power right from the battery, and put in fuses, i figured if the lightes ever grounded its better to fuse it then to let it burn. if i recall i used a 30A fuse for each system, one for each hi beam and low, and i used 10 gauge wire. One of the best choices ive made to have amazing headlights on old Blue.

Title: Re: relay kit
Post by: 78 Chevyrado on November 11, 2010, 07:50:40 am

Fuse it.  If something goes wrong the wires will melt and possibly catch fire if there's no fuse.

Title: Re: relay kit
Post by: Grim 82 on November 11, 2010, 08:42:26 am

+1 for fuses. I picked up two inline spade type fuseholders from the local parts store and IIRC I put a 15A in each. I used ring terminals from the junction block on the firewall then through the fuseholders, into the harness and then mounted the relays on the drivers side inner fender. It's a very worthwhile upgrade.

Title: Re: relay kit
Post by: GUITAR1989 on November 11, 2010, 09:41:28 am

Im not verry knowledgeable about wiring ??? im not quite sure what wire the fuse goes in. should i put the fusees in the wires that draw power from the battery?

Title: Re: relay kit
Post by: Grim 82 on November 11, 2010, 10:27:14 am

You'll have 2 wires that go to the power source. You want the fuse as close to the power source as possible. In my case, I used the junction block on the firewall as a source instead of the actual battery, so I attached the fuseholders right to the source and then connected it to the main power wires.

Title: Re: relay kit
Post by: GUITAR1989 on November 11, 2010, 11:12:28 am

How do I determine what size fuses to put in there?

Title: Re: relay kit
Post by: Grim 82 on November 11, 2010, 11:35:11 am

http://www.tacomaterritory.com/forum/showthread.php?p=2041129

Title: Re: relay kit
Post by: beastie_3 on November 11, 2010, 11:54:01 am

That is odd, my kit from the same company came with a fuse.

Title: Re: relay kit
Post by: Captkaos on November 11, 2010, 05:27:38 pm

I sell this relay kit, just not made it into the catalog yet.
http://shop.americanautowire.com/headlightenhancerrelaykit-1.aspx

Title: Re: relay kit
Post by: GUITAR1989 on November 11, 2010, 05:48:43 pm

yeah most of the relay kits ive seen since i bought this one look alot more solid xD but ive gotta work with what i got. im still not sure what size fuses i should use though. beastie what size fuses did u end up using?

Title: Re: relay kit
Post by: beastie_3 on November 11, 2010, 05:54:28 pm

OK I was wrong. The leads just had ring terminals so I cut them off and wired in a fuse. It has a 25 amp fuse now. Dunno if that is too big or not.