97C5
DRL upgrade
Banned Scam/Spammer
Joined: Feb 2007
Posts: 50,093
Likes: 267
From: Oklahoma City
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'19,'22
I offer those bulbs in white LEDS and even a switchback which changes from amber to white. PM me and I'll get you hooked up.
Thread Starter
8th Gear
Joined: Jun 2009
Posts: 8
Likes: 0
Thread Starter
8th Gear
Joined: Jun 2009
Posts: 8
Likes: 0
Yeah, I did not know that. Although the switchbacks are cool, I just want white lights. Does anyone make a switchback that stays white all the time until the turn signal is used?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
The turn signal is the DRL in the C5. The switchback bulb is basically made with amber turn LED's and white running LED's and it has no way to know if the bulb is supposed to be flashing or DRL so amber for both.
I'm pretty sure the bulbs are 4157 bulbs. Those come in amber or clear so just get clear ones to try it. I had clears in mine but one died and I had 2 ambers so I put them back in.
I was not too sure if a white signal could get me into trouble but drove with them for a while.... I gotta get LED's though to save the new housings.
Peter
I'm pretty sure the bulbs are 4157 bulbs. Those come in amber or clear so just get clear ones to try it. I had clears in mine but one died and I had 2 ambers so I put them back in.
I was not too sure if a white signal could get me into trouble but drove with them for a while.... I gotta get LED's though to save the new housings.
Peter
Thread Starter
8th Gear
Joined: Jun 2009
Posts: 8
Likes: 0
The turn signal is the DRL in the C5. The switchback bulb is basically made with amber turn LED's and white running LED's and it has no way to know if the bulb is supposed to be flashing or DRL so amber for both.
I'm pretty sure the bulbs are 4157 bulbs. Those come in amber or clear so just get clear ones to try it. I had clears in mine but one died and I had 2 ambers so I put them back in.
I was not too sure if a white signal could get me into trouble but drove with them for a while.... I gotta get LED's though to save the new housings.
Peter
I'm pretty sure the bulbs are 4157 bulbs. Those come in amber or clear so just get clear ones to try it. I had clears in mine but one died and I had 2 ambers so I put them back in.
I was not too sure if a white signal could get me into trouble but drove with them for a while.... I gotta get LED's though to save the new housings.
Peter
Thanks.
Instructor
Joined: Jun 2006
Posts: 107
Likes: 0
From: Siloam Springs AR
Put it back the way you found it.
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
There is a circuit that turns off the white when the amber is on. I suspect just some resistors, a capactor, a transistor and maybe a diode. I also suspect they were not designed for use in an application where the signal filament is also used for a DRL. I think it could be possible to build white running Switchbacks where the lights going amber for the first few seconds the DRL's come on. In this way, if the signal power is flashing the amber is used but if power is contant the circuit times out and uses the white.
Peter
Burning Brakes
Joined: May 2006
Posts: 1,049
Likes: 2
From: Houston TEXAS
Thread Starter
8th Gear
Joined: Jun 2009
Posts: 8
Likes: 0
Not exactly. When the lights are turned on the DRL/signal filament is de-energized and the running filament is energized. Powering the running filament into the Switchback turns it white and powering the signal filament turns it amber.
There is a circuit that turns off the white when the amber is on. I suspect just some resistors, a capactor, a transistor and maybe a diode. I also suspect they were not designed for use in an application where the signal filament is also used for a DRL. I think it could be possible to build white running Switchbacks where the lights going amber for the first few seconds the DRL's come on. In this way, if the signal power is flashing the amber is used but if power is contant the circuit times out and uses the white.
Peter
There is a circuit that turns off the white when the amber is on. I suspect just some resistors, a capactor, a transistor and maybe a diode. I also suspect they were not designed for use in an application where the signal filament is also used for a DRL. I think it could be possible to build white running Switchbacks where the lights going amber for the first few seconds the DRL's come on. In this way, if the signal power is flashing the amber is used but if power is contant the circuit times out and uses the white.
Peter
Thread Starter
8th Gear
Joined: Jun 2009
Posts: 8
Likes: 0
Thanks.
Tech Contributor
Joined: Oct 1999
Posts: 41,036
Likes: 9,798
From: Charlotte, NC (formerly Endicott, NY)
I do appreciate the effort. I am going to try the 4157 dual filament bulbs. I was going to try going in past the headlights but I heard that if your not fast enough the system closes the headlights to conserve battery life. Not sure if this is true, but I do not want to try to call someone to help get out of my vettes clutches.
Thanks.
Thanks.
Bill
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Or just turn the **** one the motor to manually raise them.
FYI, the bulbs already in the car are the 4157 type, you are not changing the model of bulb, just from an amber bulb to a clear bulb.
Peter
FYI, the bulbs already in the car are the 4157 type, you are not changing the model of bulb, just from an amber bulb to a clear bulb.
Peter
