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Shift Light Wiring?

 
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Old 02-16-2009, 10:48 PM
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Icon5 Shift Light Wiring?

I've got a Raptor shift light. The instructions say to connect the 3 wires, Red to a + source when the key is on, Green to the tac signal wire and Black to a ground source. All three are present right at the coil plug on my 2000 Lude.

Is there any reason why I should'nt be able to wire the light right to the coil? I talked to a JEGS tech rep the other night, (order some other parts), asked him for his opinion and he agreed that wiring directly to the 3 coil wires shold be fine.

Has anyone else done this, used the coil to power a shift light? It makes good sense. Looking for someone that has done this.

Thanks for help and suggestions.

Thanks, V1
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Old 02-17-2009, 02:32 AM
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Re: Shift Light Wiring?

do you really wanna take power away from your coil? That's just my feeling on it, ya know.

If you HAVE to get the tach signal from the coil then I guess go for it. The 4th gen has a tach test connector by the passenger shock tower in the engine bay. Maybe try the dash cluster tach wire for the signal. If you're gonna get ANYTHING from the coil, i'd stick to just the tach signal.

I've hooked up a ricer style 5" tach in my car long ago, and i used the tach test connector under the hood on my 94
I'd use a switched 12v source to power it tho like a fuse slot or the radio wiring (if you have an aftermarket CD player)
You could use the ground wire from the radio harness (again...if you have an aftermarket Cd player)
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Old 02-17-2009, 09:52 AM
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Icon5 Re: Shift Light Wiring?

I guess the reasoning is, is that you have 10 LED's taking power from the coil at the moment of highest RPM at the intended shift point, otherwise there's no drain to the voltage on the coil what so ever. Just looks like the simplest, cleanest hookup under the hood.

If I were driving a tach with a shift light and background lighting from the coil supply I'd say I agree that there would be a reduction in coil supplied voltage. In contrast, you're flashing 10 LED's momentarily at approx. 7500 rpm.

I see your point, but don't think the light is going to take the coil down on power, unless I'm really missing something.

Electronics guru's chime in if I'm off base here. I'd appreciate any help and further advice I can get.

Thanks.
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Old 02-20-2009, 06:59 PM
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Icon14 Re: Shift Light Wiring?

It's in and working great! Ended up using a hot tap in the fuse panel, (male spade connector only hot when the key is on), picked up the "Blue Tac Test" wire from the right front of the strut tower and grounded to a body ground stud in the floor. Thanks to all who chipped in and helped make this install a success.
Thanks, V1
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Old 02-20-2009, 07:30 PM
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Re: Shift Light Wiring?

WTF NO PICS???

i'm glad u figured it out, but i wanna see this thing shining at redline. BTW I really hope its not pointed directly at ur eyes...
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Old 02-21-2009, 01:58 AM
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Re: Shift Light Wiring?

Thanks. The light is mounted to the oil pressure pillar pod. Raptor actually provides a clear and a blue cap to tone the intensity of the LED's down. Right now I'm running the blue cap because it was given to me that way. I have the same light in chrome with blue LED's and run no cap at all on my Harley. These things are awesome and they work.

If you go to Raptor Performance's website, you can see my bike as an example of a typical Harley installation and they have some examples of car mounts and locations too.

Check'em out.

V1
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