I was conisdering changing, can't wait to see some pics when your finished.
Gone LED.
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by Eddie 70
Did you ever manage to get the bulbs in and how did they look?
I have all the bulbs...need to order more now for the centyer gauge cluster. I installed all I was ready for, but since the car is still apart being worked on I haven't tested anything but the tail/brake, marker, and signal bulbs. Everything else will have to wait until the car is further along. When I'm done, every bulb in the car except for the GEN light bulb, will be LED. I promise I will post pics and explainations here when I get that far. Sorry I have not had the chance to go further with it yet.
Burning Brakes
Joined: Sep 2006
Posts: 1,242
Likes: 12
From: Kalispell MT
I'm really interested in this upgrade. Would love to have brighter lights in back especially. Where is the flasher located in the '70, under the hood or under the dash? Which pin/plug configuration did you use? Sounds like this is the only required change to current electrical system.
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by Ray Y
I'm really interested in this upgrade. Would love to have brighter lights in back especially. Where is the flasher located in the '70, under the hood or under the dash? Which pin/plug configuration did you use? Sounds like this is the only required change to current electrical system.
The flasher for the signals is on the fuse panel under the driver's dash pad, to the right of the brake padel. There is another flasher on the pass side, on a wire terminated end, that controls the hazards. You will need to change both to HD electronic flashers so the signals work. Without HD flashers, there will not be enough resistance, and the signals won't work. I'm dealing with that problem right now, as I have too many LEDs so the HDs are not doing the job. I have to add more resistance to the line.
Originally Posted by Fstdraw
I do have a question. How will these work with our fiber optics? I'm not sure they will.
I think testing would have to be done. A fiber optic cable will transmit the light, but it'll be slightly dimmer I think. They won't go black if that's what you mean.
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by bozzman3
Durango,If you use a electric flasher verses a thermal flasher I think that would solve your problems.
I have the HD electronic flashers, and they don't work. But, I have NO standard bulbs. That means all my front and rear bulbs are all LED. I think they are just too much for the range of the HD flashers. They would kind of work a little, maybe a flash or two if the brakes were applied...but all by themselves...nothing.
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Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by bozzman3
Do the web sites that sell the bulbs sell a resistor pack to install in the light circuit?I have seen those for sale on one of those led bulb sites
Yes they do. They sell little inline packs that go inline with the signal wire. They're great looking little units, and at $5 each it will cost me a bit to get one on every signal. See, I re-wire my rear lights so all four lights have the exact same function. All are tail lights, brake lights, and signal lights.
I was kind of thinking oh just making a single large resistance pak, and installing it at the flasher, not at the lights.
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by ngcolby
Couldnt one just fab something from some resistors bought at the local radio shack for quite a bit less than $5?
Yeah, but I don't have the experience to do that yet, and I'd want to make a cool case or protective sheething somehow. I like the idea of a single high resistance unit at the flasher, but I don't know how to calculate how much resistance I'd need.
Melting Slicks
Joined: Jan 2006
Posts: 3,028
Likes: 2
From: North NJ
I'll be following this closely. I'd love to see some pics. Make sure you keep track of part #'s and out-of-pocket costs. Sounds like a nice upgrade. I'm going to do a writeup on the heat/sound spray-in insualtion I'm doing but I have no idea how to do one of those corvetteforum memo writeups, let me know if you figure it out. Otherwise I'll just do a thread. 
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by 68 NJConv 454
I have no idea how to do one of those corvetteforum memo writeups, let me know if you figure it out.
I have no idea either. Can someone help us out with that?
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
I have a gizmo at the house I took off a Harley I was working on, its the same thing. I'll check it out tonight to see what the value is. Its just a resistor that goes across the light socket to Lower the overall resistance on the light circuit and put a load on the flasher to make it work.
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by 1BAD80
They sell a flasher just for LED lights.
And I have them. Problem is I've added a few signals tot he circuit that were not on it originally, and the added LEDs I think are causing the problems.
Pro
Joined: Nov 1999
Posts: 520
Likes: 5
From: Front Range
I've been running LED brake lights for years now and am fairly pleased with them. I ran into the same issue you're experiencing with the improper resistance on the front marker / signal lights.
If you install the resistor ballasts in-line, you can use regular thermal flashers.
Be aware that due to the focused nature of LED's, you really can't see these things in the day unless you're looking straight at them. They're definitely not DOT legal, so if you get pulled over it's a fix-it.
FWIW, you can run 1157 LEDs on your rear brake/signals without changing anything else in the car.
the blonde weasel
If you install the resistor ballasts in-line, you can use regular thermal flashers.
Be aware that due to the focused nature of LED's, you really can't see these things in the day unless you're looking straight at them. They're definitely not DOT legal, so if you get pulled over it's a fix-it.
FWIW, you can run 1157 LEDs on your rear brake/signals without changing anything else in the car.
the blonde weasel
Last edited by iNdigo; Nov 3, 2006 at 04:52 PM.