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#126 | |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: Headlight relay install You Gatta do it.
Quote:
So, that number puts you at about 75% lighting -- Using a relay install, you drop your losses to about .4 volts or so, according to your information. That means that with a relay harness, and a properly operating alternator, you could very well be getting over 14 volts straight to your headlights. Thats why this makes such a phenominal difference in lighting. Its like overclocking your lights! ![]()
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#127 | |
Special Order
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Location: Mt Airy, MD
Posts: 85,859
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Re: Headlight relay install You Gatta do it.
Quote:
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#128 | |
Account Suspended
Join Date: Feb 2004
Posts: 3,051
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Re: Headlight relay install You Gatta do it.
Quote:
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#129 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Headlight relay install You Gatta do it.
Kewwwlll.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#130 |
Account Suspended
Join Date: Feb 2004
Posts: 3,051
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Re: Headlight relay install You Gatta do it.
You have to cut the harness you're buying and extend the activation wire in to your cab.
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#131 |
Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Re: Headlight relay install You Gatta do it.
how can you tell if PO has done this already? Lots of new wiring in truck.
Also how much more wiring under the hood can be seen and is it all under hood work or some in cab work? Thanks.
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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#132 | |
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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Re: Headlight relay install You Gatta do it.
Quote:
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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#133 | |
Car O'Holic
Join Date: Jan 2005
Location: Austin, Tx.
Posts: 692
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Re: Headlight relay install You Gatta do it.
Quote:
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#134 |
Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Re: Headlight relay install You Gatta do it.
were at?
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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#135 |
Registered User
Join Date: Jan 2002
Location: San Diego, CA, USA
Posts: 251
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Re: Headlight relay install You Gatta do it.
I want to do it, but i need to be taken by the hand here!!!
I want to replace my sealed beams with the Hella's I have a GMC. I have a copy of the wiring schematic. Where do i put the 30a inline fuse ? Can i still use my original headlight switch? Anyone???? Beuller???? |
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#136 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: Headlight relay install You Gatta do it.
Very easy to do
![]() For the wiring, the 30 amp fuse goes between the relay's pin number 30, and the battery. Pin 87 goes to your light. Pin 85 goes to ground, and Pin 86 goes to your original wiring from the headlight highbeam switch on the floor.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#137 | |
Registered User
Join Date: Nov 2004
Location: "Under Montana skies."
Posts: 1,836
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Quote:
Someone posted a headlight relay wiring diagram earlier in the thread. I also posted these links earlier: http://www.madelectrical.com/electri...adlights.shtml http://www.madelectrical.com/electri...dlights2.shtml
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'71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup. |
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#138 |
Account Suspended
Join Date: Oct 2004
Posts: 1,276
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Re: Headlight relay install You Gatta do it.
If it helps anyone out, I spent about an hour with the Napa counter and they finaly found these: Napa Part 192D , Lighting by Trucklite
12V 40 Amp/ they cost 8.49 each they wire up: 30 battery, 87 or 87a lights, 85 ground and 86 from dimmer switch. seem to be good quality (import) for the price. I was told that Bosch are 3 xs the price, of course higher quality. |
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#139 |
Registered User
Join Date: Nov 2003
Location: dallas/ftwoth
Posts: 112
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Re: Headlight relay install You Gatta do it.
yall need too check out partsexpress.com bosch relays that i got from them for my truck were only 1.99 each they have everything you need i already installed mine and they work great took about three days for delivery check them out partsexspress.com they have the 40amp ones for 1.79 but they arnt bosch they also have water proof 40 amp ones for 2.50 each http://partsexpress.com
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#140 |
Registered User
Join Date: Oct 2003
Location: Central Vermont
Posts: 8,538
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Re: Headlight relay install You Gatta do it.
Seeing alot of 30 & 40 amp stuff mentioned here.
Hope everyone remembers to run the appropriate size fuse and wire size when doing all this up-grading. Fused @ 10amps needs 16 guage wire Fused @ 15amps needs 14 guage wire Fused @ 20amps needs 12 guage wire Fused @ 30amps needs 10 guage wire Fused @ 40amps needs 8 guage wire |
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#141 |
Registered User
Join Date: May 2001
Location: Benbrook, TX
Posts: 1,060
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Re: Headlight relay install You Gatta do it.
I'll do a FAQ with pic's and info if it will help.
The install is easy. Some guy's are upgrading or changing to a different headlight. That will cost more, but to just install the relays you should be able to get out cheap. $10.00 or less. ![]() ![]() ![]() Matthew
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69 swb stepside, rebuild and upgrade in progress |
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#142 | |
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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Re: Headlight relay install You Gatta do it.
Good Info. vtblazer
If I remember right 55/65 watt bulbs will draw about 11 amps and 85/100 watt bulbs will draw about 17 amps . Quote:
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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#143 |
Registered User
Join Date: Apr 2004
Location: N.E. MO
Posts: 1,749
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Re: Headlight relay install You Gatta do it.
What gauge wires does the Summit AMC-509102 kit use?
Couple more questions. Since this kit is an APC product, shouldn't I be able to get it locally at Autozone or someplace that sells APC products? Anybody got a website for APC?
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72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey Last edited by 454_72_4X4; 11-29-2005 at 11:19 PM. |
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#144 | |
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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Re: Headlight relay install You Gatta do it.
It's been a month or so since I installed the kit ,but from what I remember it's 12 gauge wire and will work with the 100 watt bulbs .I threw out all the paper work so I hope someone else can verify this .
Quote:
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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#145 |
Senior Member
Join Date: Feb 2004
Location: Ponca city now kingfisher Oklahoma
Posts: 1,221
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Re: Headlight relay install You Gatta do it.
Lots of good info here.
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#146 |
1968 C20 Vortec Beast
Join Date: Jun 2005
Location: STILLWATER,OKLAHOMA
Posts: 483
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Re: Headlight relay install You Gatta do it.
With all of this setup does the indicator on the dash still work properly?
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Ugly or not it still kicks a**! |
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#147 | |
Out of the carpool lane.
Join Date: Jan 2000
Location: Clark Co, WA
Posts: 5,673
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Re: Headlight relay install You Gatta do it.
Yes- does not change it at all.
Quote:
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1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten... |
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#148 |
Senior Member
Join Date: Jan 2005
Location: Raleigh, NC
Posts: 894
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Re: Headlight relay install You Gatta do it.
I just checked the voltage at the bulbs for my stock system.
At 14.7ish Volts at the battery, I get 13.05V at the driver's headlight and 12.62V at the passenger headlight. I don't know if it would be worth my trouble to upgrade it. What do y'all think?
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-Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals... |
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#149 | |
Account Suspended
Join Date: Feb 2004
Posts: 3,051
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Re: Headlight relay install You Gatta do it.
Quote:
I would say that it is. Yes, you can buy the APC kits at Autozone. It's where i bought my first one 3 years ago for my C20. It's also why I posted this here. One of the best mods you can do. Even if Kurt had to post the right one for this application ![]() Last edited by FormerMember; 11-30-2005 at 11:42 PM. |
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#150 |
71 rustless in texas
Join Date: Aug 2004
Location: Houston, TX
Posts: 257
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Re: Headlight relay install You Gatta do it.
There are several places to get good quality electrical parts and hardware. The terminals for the headlights are 5/16" and are available at Ron Francis
http://www.parts123.com/parts123/yb....rta~partsort~2 P/N AM-8 you get 8 for $7.95. Or you can get 50 if you think you need that many. This way you can just buy bulk wire and make your own harness. The other ends are 1/4" and can be had at MAD Electric http://www.madelectrical.com/catalog/flat-blade.shtml P/N 10-56F10 you get 10 for $2.99 or again 50 if need be. You can either buy their fancy wire or just go to your local Auto zone or NAPA and pick up some bulk wire. You'll need Brown, Green and Red and some Black. Then just make up your own harness. Relays, I really likes the ones at Parts Express http://www.partsexpress.com/pe/showd...number=339-075 P/N 339075 for the socket and 330-077 for the relays you'll nedd 2 of each. The H4 Lens can be had a JC Witless http://www.jcwhitney.com/autoparts/I...D:100000165791 P/N ZX139317U $17.99 They also have replacement bulbs all diffrent wattages.
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"The secret to creativity is knowing how to hide your sources." "No one really listens to anyone else, and if you try it for a while you'll see why" ![]() 71 C-10 LWB presently in a perpetual state of disassembly '96 Toyota (my work car) '04 Mustang Convertable (wife's car & other money pit) Latest aquesition and why my trucks still in the garage covered with junk.. 2010 Aqua Blue metallic 6 speed Manual LS3 2SS/RS Camaro (I want one of these in my truck FAQ here VENDORS here SUPPORT THE BOARD here My second favorite SITE |
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