Headlight Upgrades
Drifting
Joined: Dec 2003
Posts: 1,564
Likes: 28
From: Medina OH
Drifting
Joined: Jul 2015
Posts: 1,270
Likes: 239
From: Sun City West, AZ
The resistors/Circuit Doctor mod are only needed if you have a 1990 or newer car that uses the high beam filament to ground the fog lights. Since LEDs don't have a filament, there is no ground path for the fog lights. Older cars have the fog lights grounded directly, so they don't have the problem.
See this thread for the full explanation:
https://www.corvetteforum.com/forums...-solution.html
See this thread for the full explanation:
https://www.corvetteforum.com/forums...-solution.html
Pro
Joined: Sep 2008
Posts: 694
Likes: 27
From: St James New York
What did you do the accomplish this?
Resistors won't work for an '89 vette. Did you run new ground wiring or somehow ground the existing OEM fog harness/plugs??
Instructor
Joined: Oct 2008
Posts: 193
Likes: 19
From: Stevenston, Scotland, GB
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
I live in the Scottish Highlands ('Skyfall' near Glen Etive) and among the dark trees. 30 feet is no good as I like my dipped beam to light up 50 yards in front of me (..angled off to the LH side sos not to blind oncoming deer and marauding clansmen ). Led's can't do that, but a traditional halogen or xenon can. With my setup as described, main beam turns the world to daylight!
Instructor
Joined: Dec 2014
Posts: 144
Likes: 9
I used a set of Hella lights on my 91, direct replacement and they work great. I have used Cibie and Sev-Marchal non-Dot racing lights in the past on my British sports cars. Flash those high beams and on coming drivers will dim their high beams real quick.
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Often wish I could hit those idiots with some spot lights doing about a million candle power legally. WTF are you doing with high beams in a city that is lit bright?
Instructor
Joined: Sep 2016
Posts: 129
Likes: 16
From: Milwaukee WI
For those that say their LED lights don't throw far enough - you've got the wrong ones. As someone else said, all LED's aren't the same and there are some which throw quite far. I think they tend to get a bad rap because of the cheaper ones.
Expensive, but they do a wonderful job. Had them on my truck and plan on getting them for the C4 soon.
Edit: These same LED's were used on the Circuit Doctor's thread mentioned earlier in the thread. https://www.corvetteforum.com/forums...-solution.html
Expensive, but they do a wonderful job. Had them on my truck and plan on getting them for the C4 soon.
Edit: These same LED's were used on the Circuit Doctor's thread mentioned earlier in the thread. https://www.corvetteforum.com/forums...-solution.html
Last edited by slhawkins; Apr 13, 2017 at 11:29 AM. Reason: Adding forum link
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Drifting
Joined: Jul 2015
Posts: 1,270
Likes: 239
From: Sun City West, AZ
A separate wire from the chassis to the existing foglight wirings.
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
For those that say their LED lights don't throw far enough - you've got the wrong ones. As someone else said, all LED's aren't the same and there are some which throw quite far. I think they tend to get a bad rap because of the cheaper ones.
https://www.amazon.com/GE-NIGHTHAWK-.../dp/B00BQX2BSO
Expensive, but they do a wonderful job. Had them on my truck and plan on getting them for the C4 soon.
Edit: These same LED's were used on the Circuit Doctor's thread mentioned earlier in the thread. https://www.corvetteforum.com/forums...-solution.html
https://www.amazon.com/GE-NIGHTHAWK-.../dp/B00BQX2BSO
Expensive, but they do a wonderful job. Had them on my truck and plan on getting them for the C4 soon.
Edit: These same LED's were used on the Circuit Doctor's thread mentioned earlier in the thread. https://www.corvetteforum.com/forums...-solution.html