Voltage on side markers
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 36
Likes: 0
From: SO. Plainfield, NJ
Car: 1992 rs
Engine: 305
Transmission: 700R4
Voltage on side markers
Does anyone know the volatge consumption on the side marker lamp bulbs. I want to change mine to LEDs, and I dont want it to **** up, like blink really fast, or not blink at all.
-Pete
-Pete Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
I DIDN'T KNOW BULBS WERE ARTISTIC AND THEY COULD DRAW !
After converting to LEDs you will draw less current.
Therefore you must change your present blinker from the electromechanical one you have now to an electronic one.
So don’t worry how much your present bulbs draw.
.
Happy Racing!
.
- Race Clean!. . . . . . . . . . . Do It On Dirt! -

Supreme Member
iTrader: (3)
Joined: Jul 2004
Posts: 2,989
Likes: 9
Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: I DIDN'T KNOW BULBS WERE ARTISTIC AND THEY COULD DRAW !
The only problem I see with LEDs in the front side markers would be the partial voltage they receive with the park lamps on. The 12V feeds the side marker, then it goes through the front park lamp and then to ground.
So neither the side marker or the front lamp see full voltage with park lamps on.
If the LEDs can handle that scenario well, then I'd recommend putting LEDs in BOTH lamps at once (on each side). Otherwise you'll throw off the voltage "balance" between the side marker and the front lamp.
And as NINA already pointed out, you'll need an electronic flasher for your turn signals, that's a given.
Hope this helps.
Lou
So neither the side marker or the front lamp see full voltage with park lamps on.
If the LEDs can handle that scenario well, then I'd recommend putting LEDs in BOTH lamps at once (on each side). Otherwise you'll throw off the voltage "balance" between the side marker and the front lamp.
And as NINA already pointed out, you'll need an electronic flasher for your turn signals, that's a given.
Hope this helps.
Lou
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
I DIDN'T KNOW BULBS WERE ARTISTIC AND THEY COULD DRAW !
Nope.
All side markers, front markers and turn signals operate on 12 volts.
.
.
Nope.
The voltage does not go thru any bulb to get to any other bulb.
.
.
Yes they do.
When you pull the light switch out half way to illuminate your markers, or all the way when it’s night to illuminate the headlights, the full 12 volts is applied to those markers.
Also:
There is no ‘balance’.
EVERY lamp in Gen3F platform is parallel to B+.
NEVER in series. That would cause troubleshooting headaches and increase illumination failures.
The reason a thermal
flasher slows when a lamp burns out is due to less current flowing thru the heating element portion of the flasher.
.
Happy Racing!
.
- Race Clean!. . . . . . . . . . . Do It On Dirt! -

Supreme Member
iTrader: (3)
Joined: Jul 2004
Posts: 2,989
Likes: 9
Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: I DIDN'T KNOW BULBS WERE ARTISTIC AND THEY COULD DRAW !
Nina, open your shop manual and look at the diagrams closely. Specifically the front park lamps + side markers.
Or feel free to cunsult this diagram: http://www.austinthirdgen.org/mkport...ithout_T61.jpg
Lou
Or feel free to cunsult this diagram: http://www.austinthirdgen.org/mkport...ithout_T61.jpg
Lou
Thread
Thread Starter
Forum
Replies
Last Post
db057
TBI
10
Aug 11, 2015 10:11 PM




