C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Installed Harlan shift light...it gets the thumbs up

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Old Jul 29, 2002 | 08:19 PM
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Default Installed Harlan shift light...it gets the thumbs up

I installed the Harlan shift light. It is a $55 unit that allows you to set whatever RPM you want it to come on at in 100 RPM increments.
do a search for Harlan mini-shift light. It works like a charm. To test it, I set it at 3500 RPM (so I am not banging it past 6000 just to test it). It works fine.

It seems sturdy, and of high quality. The light is only 1 inch in diameter, and about 2" deep. I received my order within 2 weeks of placing it.

I hid it in the left side of the fake A/C vent on the left side of the vent to the right of the instrument cluster shroud. Whats cool is you can't even tell its there. I used a soldering iron to melt out a 1" app. diameter hole in the fake A/C vent backing (after I disassembled the two halves). And then a 1 1/4" hole in the back plastic behind it in the dash (because it needs extra space to back in there)

This light does a self-test and blinks (along with other warning lights) when you turn the key on so you know it works.

It has 3 wires...a switch on power source, a ground, and a wire that needs tapped into the tach output wire.

I hid the wires in between the under dash pad (which was easy to remove) and the dash support under the steering wheel.

The tach output wire is a white wire that is in a bundle of wires that plugs into a big connector going through the firewall right. This big connector is right next to the clutch pedal.
I used wire taps (that clip onto the wire, so you don't have to cut it in half) to tap into the switch on power wires.

The switch on power wire I used was pink and had either a green or black stripe (can't remember) It is in the same connector bundle going though the firewall, although I imagine you can use any source, as long as its switched on 12v. [IMG][/IMG] [IMG][/IMG]
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Old Jul 29, 2002 | 09:08 PM
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Default Re: Installed Harlan shift light...it gets the thumbs up (dizwiz24)

The Harlan Shift Light gets a thumbs up from me too.
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Old Jul 29, 2002 | 11:18 PM
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Default Re: Installed Harlan shift light...it gets the thumbs up (93Blackrose)

Hey guys,

I thought this has looked like a good mod to make, but have not done it yet. How bright is it at night?

Thanks,
Jeff
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Old Jul 29, 2002 | 11:42 PM
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Default Re: Installed Harlan shift light...it gets the thumbs up (powerslide91)

The red shift light is bright enough to see during the day, but not too bright to blind you at night. This little light lets you think about driving at the track and not worry about looking at the RPM's.

Quality is great.

If you do a search for it, you may find some video and you will be able to see how bright it is. I did a few months back and the video sold me on it.

Edit - Added this.

After I installed the light, it quit working and I found out I had a bad/cracked spark plug and I was running on 7 cylinders. The light was set to 8 and worked again after I replaced the spark plug. Just thought I would add this.

Great product made in the USA :cheers: :cheers:


[Modified by 85vet, 10:46 PM 7/29/2002]
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