Headlight Relay Upgrade - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pb6603 · 11-01-2012, 10:38 PM

So i just now finished the double relay install to increase my headlight brightness and what a difference it made. It took around 30 minutes to complete and is well worth it. I found the double relay kit on Summit Racing for around $8. Also i found the wiring schematics on this site as well. Anyone with this year truck needs to install this as soon as possible.

TxRat · 11-01-2012, 11:00 PM

Quote:

Originally Posted by pb6603

So i just now finished the double relay install to increase my headlight brightness and what a difference it made. It took around 30 minutes to complete and is well worth it. I found the double relay kit on Summit Racing for around $8. Also i found the wiring schematics on this site as well. Anyone with this year truck needs to install this as soon as possible.

$8? can you post a summit link. Sounds awesome

luvbowties · 11-01-2012, 11:02 PM

Quote:

Originally Posted by pb6603

So i just now finished the double relay install to increase my headlight brightness and what a difference it made. It took around 30 minutes to complete and is well worth it. I found the double relay kit on Summit Racing for around $8. Also i found the wiring schematics on this site as well. Anyone with this year truck needs to install this as soon as possible.

I'm optimistically hoping you did not err on the price of the 'double relay' for around $8 on Summit. Which part(s) did you get? I'd love to upgrade 2 older pickups with similar conversion. I've heard nothing but good on the results. Thanks for help.

LostMy65 · 11-01-2012, 11:46 PM

Here's some good threads on the topic:
http://67-72chevytrucks.com/vboard/s...d.php?t=397695
http://67-72chevytrucks.com/vboard/s...d.php?t=387693

brokenspoke · 11-02-2012, 06:52 AM

Quote:

Originally Posted by pb6603

So i just now finished the double relay install to increase my headlight brightness and what a difference it made. It took around 30 minutes to complete and is well worth it. I found the double relay kit on Summit Racing for around $8. Also i found the wiring schematics on this site as well. Anyone with this year truck needs to install this as soon as possible.

It did not happen without pictures to prove it

jjzepplin · 11-02-2012, 07:46 AM

theastronaut · 11-02-2012, 08:51 AM

Here's my after pic, this is an awesome upgrade! Relays, 10ga wire straight from the battery (fused), Cibie Z-Beam H4's, and Hella 80/100 watt bulbs.

**tazattitude** · 11-02-2012, 08:53 AM

30 minutes wow!!! I bought the double relay and harness from LMC and it took me quite a while to install. Most of the time is because I anted to tuck it in nice and neat. I mounted the relays behind the grill.

Did you replace the harness? I believe you have to run a thicker gauge wire.

egaray281 · 11-02-2012, 09:27 AM

I have a question i did the headlight conversion with HID's , ok but when im running the lights and i turn up my radio (2 10's and 1 1000w amp) the radio just cuts off i see my battery gauge go really low but only when im doing both at the same time so if i add a relay to my lights will this help or not at all?

TopFuel1966 · 11-02-2012, 10:42 AM

Quote:

Originally Posted by egaray281

I have a question i did the headlight conversion with HID's , ok but when im running the lights and i turn up my radio (2 10's and 1 1000w amp) the radio just cuts off i see my battery gauge go really low but only when im doing both at the same time so if i add a relay to my lights will this help or not at all?

If you don't already have one installed and it doesn't sound like you do, you need a mininum 2.0 farad capacitor inline with your amp's power supply to help solve that problem.

egaray281 · 11-02-2012, 10:49 AM

Quote:

Originally Posted by TopFuel1966

If you don't already have one installed and it doesn't sound like you do, you need a mininum 2.0 farad capacitor inline with your amp's power supply to help solve that problem.

ok thanks im actually gonna buy a cap this weekend but wasnt sure wat size cap i needed! ima give that a try

TopFuel1966 · 11-02-2012, 11:07 AM

Quote:

Originally Posted by egaray281

ok thanks im actually gonna buy a cap this weekend but wasnt sure wat size cap i needed! ima give that a try

This link has a requirement chart:

http://www.sonicelectronix.com/cat_i6_capacitors.html

pb6603 · 11-02-2012, 11:39 AM

http://www.summitracing.com/parts/via-80238

The link is above. VPA SPDT Relays with Wiring Sockets 80238 for $8.95, sorry I was a dollar off. And yes 30 minutes if you know what your doing and study the wiring schematics before you tackle the job. I mounted my relays right beside the old horn relay/bus bar on the driver side of the radiator. Used 12 GA wire to the main battery source. I might can load the schematics i used later if i remember.

**Clyde65** · 11-02-2012, 09:39 AM

what alternator do you have egaray281? sounds like you have a 70amp alt.

egaray281 · 11-02-2012, 09:47 AM

to be honest i dont know whatever is the stock one? my engine came out of a 80 c10 i just used everything that was already on it

11-01-2012, 10:38 PM	#1
pb6603 Registered User Join Date: Jun 2012 Location: Pine Bluff, AR Posts: 3	Headlight Relay Upgrade So i just now finished the double relay install to increase my headlight brightness and what a difference it made. It took around 30 minutes to complete and is well worth it. I found the double relay kit on Summit Racing for around $8. Also i found the wiring schematics on this site as well. Anyone with this year truck needs to install this as soon as possible.

11-01-2012, 11:46 PM	#4
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Headlight Relay Upgrade Here's some good threads on the topic: http://67-72chevytrucks.com/vboard/s...d.php?t=397695 http://67-72chevytrucks.com/vboard/s...d.php?t=387693 __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

11-02-2012, 07:46 AM	#6
jjzepplin Registered User Join Date: Feb 2012 Location: Ruskin Florida Posts: 4,566	Re: Headlight Relay Upgrade __________________ 70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350

11-02-2012, 08:51 AM	#7
theastronaut Registered User Join Date: May 2011 Location: Anderson SC Posts: 3,901	Re: Headlight Relay Upgrade Here's my after pic, this is an awesome upgrade! Relays, 10ga wire straight from the battery (fused), Cibie Z-Beam H4's, and Hella 80/100 watt bulbs. __________________ Project Goldilocks '66 C10 Short Fleet BBW Build '65 C10 Highly Detailed Stock Restoration Thread '78 Camaro Targa Roof Build '55 International Metal/Body/Paint Work '66 F100 Full Rotisserie Restoration '40 Packard 120 Convertible Coupe Restoration How To Restore and Detail an Original Gauge Cluster How To Detail Sand Body Panels, Edges, Corners, Etc

11-02-2012, 08:53 AM	#8
tazattitude Senior Member Join Date: Oct 2010 Location: Largo, FL Posts: 532	Re: Headlight Relay Upgrade 30 minutes wow!!! I bought the double relay and harness from LMC and it took me quite a while to install. Most of the time is because I anted to tuck it in nice and neat. I mounted the relays behind the grill. Did you replace the harness? I believe you have to run a thicker gauge wire. __________________ TAZ BUILDS 1966 GMC Suburban 1963 GMC Suburban Patina frame-on FOR Sale 1966 C10 Short Bed (2010-11) Monthly Updates 2015 C10 Pics with my '72 Montego GT 429/521 build 1963 Pro Street C10 back halved. Frame off I did back in 1990 Pics / Video

11-02-2012, 09:27 AM	#9
egaray281 Registered User Join Date: Jul 2012 Location: houston,tx Posts: 175	Re: Headlight Relay Upgrade I have a question i did the headlight conversion with HID's , ok but when im running the lights and i turn up my radio (2 10's and 1 1000w amp) the radio just cuts off i see my battery gauge go really low but only when im doing both at the same time so if i add a relay to my lights will this help or not at all?

11-02-2012, 11:39 AM	#13
pb6603 Registered User Join Date: Jun 2012 Location: Pine Bluff, AR Posts: 3	Re: Headlight Relay Upgrade http://www.summitracing.com/parts/via-80238 The link is above. VPA SPDT Relays with Wiring Sockets 80238 for $8.95, sorry I was a dollar off. And yes 30 minutes if you know what your doing and study the wiring schematics before you tackle the job. I mounted my relays right beside the old horn relay/bus bar on the driver side of the radiator. Used 12 GA wire to the main battery source. I might can load the schematics i used later if i remember.

11-02-2012, 09:39 AM	#14
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,547	Re: Headlight Relay Upgrade what alternator do you have egaray281? sounds like you have a 70amp alt. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

11-02-2012, 09:47 AM	#15
egaray281 Registered User Join Date: Jul 2012 Location: houston,tx Posts: 175	Re: Headlight Relay Upgrade to be honest i dont know whatever is the stock one? my engine came out of a 80 c10 i just used everything that was already on it

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