Genssi LED Projector headlights in 85
04-25-2017, 09:02 PM
#21
Drifting
Thread Starter
Took the car for quick night spin - setting the light break at 40 feet is too low. Tomorrow I'll crank it up some more.
Is there a basic guide for setting up projectors?
Is there a basic guide for setting up projectors?
04-26-2017, 03:12 AM
#22
Race Director
Measure the height of the top of the lamps. You don't want your light output to go higher than that because the lights will be pointing up and into the eyes of oncoming vehicles. Set the lights so that the top of the beam pattern is no higher than the measured height.
10-20-2017, 08:04 AM
#25
Melting Slicks
I don't have this problem? you might wanna try these,I haven't had time to install them,but at this price its worth a shot.Its a simple plug and play install.
https://www.superbrightleds.com/more...lbs/2179/5079/
https://www.superbrightleds.com/more...lbs/2179/5079/
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C5 4me (10-20-2017)
10-20-2017, 10:02 AM
#27
Melting Slicks
I appreciate it. No sir I used the circuit doctor method with the bulb taped up cleanly in headlight bucket housing. I may give the load resistors a whirl but not entirely sure yet. I kept the halogen fogs because these headlights did some funny things with the LED fogs I had in there.
Patrick
10-20-2017, 11:02 AM
#29
Le Mans Master
Member Since: Oct 2004
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Paul,
I appreciate it. No sir I used the circuit doctor method with the bulb taped up cleanly in headlight bucket housing. I may give the load resistors a whirl but not entirely sure yet. I kept the halogen fogs because these headlights did some funny things with the LED fogs I had in there.
Patrick
I appreciate it. No sir I used the circuit doctor method with the bulb taped up cleanly in headlight bucket housing. I may give the load resistors a whirl but not entirely sure yet. I kept the halogen fogs because these headlights did some funny things with the LED fogs I had in there.
Patrick
I didn't see the specific details this "circuit doctor" conjured up, but I gather it involves using a bulb as a load resistor.
Note for those wondering why a LOAD resistor is used to restore the light/function to the pre-LED condition: The fog lights and headlight (filament) are wired in series and then to ground. The fog light depend on the low resistance (around only 6Ω) of the headlight filament in order for the fog lights to work.
The LED circuit requires a much higher resistance - several hundred Ωs in fact. So, with the LED lights installed, the fogs need another path to ground to work. One way can be as simple as installing a substitute (low value) resistor in place of the original headlight filament (aka "LOAD RESISTOR"), OR altering the circuit wiring to provide a ground for the fog lights.
Load resistors simplicity has favor in other conversions, namely later model cars. Many cars now have the capability to monitor the various circuit currents and detect any anomalies (like the insertion of LEDs may cause) and illuminate a warning light. A proper load resistor assures the current remains as before and this avoids setting any warning lights.
The LED circuit requires a much higher resistance - several hundred Ωs in fact. So, with the LED lights installed, the fogs need another path to ground to work. One way can be as simple as installing a substitute (low value) resistor in place of the original headlight filament (aka "LOAD RESISTOR"), OR altering the circuit wiring to provide a ground for the fog lights.
Load resistors simplicity has favor in other conversions, namely later model cars. Many cars now have the capability to monitor the various circuit currents and detect any anomalies (like the insertion of LEDs may cause) and illuminate a warning light. A proper load resistor assures the current remains as before and this avoids setting any warning lights.
10-20-2017, 01:27 PM
#30
Racer
"Is this the best way to do it? Any suggestions?"
I took mine in to the MOT Station (UK annual test place) where I have mine tested, and asked them to check it on their alignment machine. It was much more accurate than the wall method (which I'd already done), and they were nice enough not to charge me!
I took mine in to the MOT Station (UK annual test place) where I have mine tested, and asked them to check it on their alignment machine. It was much more accurate than the wall method (which I'd already done), and they were nice enough not to charge me!
Last edited by maddogwyatt; 10-20-2017 at 01:30 PM.
10-22-2017, 02:25 PM
#31
Drifting
Thread Starter
10-23-2017, 04:02 AM
#32
Race Director
You need the Circuit Doctor (or similar mod) with some years that used the high beam filament as a ground for the fog lights. I think it's for 1990 and later. I know my '86 has a hard wired fog light ground, so it's not a problem.
LED and HID headlights don't have filaments, so the fog lights don't work. There was extensive discussion on this topic in these threads:
https://www.corvetteforum.com/forums...-solution.html
https://www.corvetteforum.com/forums...eadlights.html
LED and HID headlights don't have filaments, so the fog lights don't work. There was extensive discussion on this topic in these threads:
https://www.corvetteforum.com/forums...-solution.html
https://www.corvetteforum.com/forums...eadlights.html
Last edited by Cliff Harris; 10-23-2017 at 04:06 AM.
03-18-2018, 07:36 AM
#34
Drifting
Works amazingly well with no guesswork.
