shift light
Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=13139
Printed Date: June 10, 2024 at 3:24 AM
Topic: shift light
Posted By: Rortec
Subject: shift light
Date Posted: May 04, 2003 at 6:03 PM
Hi Guys, Newbie her so forgive me if i make any silly errors!!! lol So to my first question. Does anyone have info on how to make a shift light? I know that at one end you need to interpret the Tacho pulse from the ecu and at the other end you need a led (or more) but im looking for the components and wiring info in the middle? Thanks in advance Rory
Replies:
Posted By: Rortec
Date Posted: June 07, 2003 at 11:45 AM
I take it that nobody knows with the amount of replies this has had! lol Someone must have some idea what is involved??? without obviously going out and buying one! lol All suggestions are very welcome. Rory
Posted By: xetmes
Date Posted: June 07, 2003 at 1:11 PM
go out and buy one.. 
seriously, it can be done but i dont think it is really practical, I never bothered trying but as far as i know it is a AC signal from about 0-6V RMS, so you could rectify it, then run it on a POT to adjust the rev point and an LED. I dont think it would be all that difficult but i never bothered trying because they are not that expensive to purchase.
Posted By: Rortec
Date Posted: June 07, 2003 at 6:20 PM
Thanks xetmes, i know it would be far more simple to go and buy one but making it is half the fun!lol I like the sound of your idea, any more info on offer? Cheers Rory
Posted By: hotrodelectric
Date Posted: June 08, 2003 at 11:50 AM
Try an MSD 'window' controller. With that, I think you can trigger a unit of any sort set at a certain RPM.
Posted By: Rortec
Date Posted: June 08, 2003 at 12:26 PM
sorry for my ignorance!  But what is a MSD window controller? What does it do? How much is it? etc? Any links? Cheers guys
Posted By: MielGibson
Date Posted: June 08, 2003 at 4:10 PM
Same here, I mean, what is a shift light? Is it a fancy word for tachometer?
Posted By: xetmes
Date Posted: June 08, 2003 at 5:20 PM
many tachs have them ,it is a light that comes on at a certain RPM, to tell you when to shift
Posted By: hotrodelectric
Date Posted: June 09, 2003 at 2:42 AM
https://www.msdignition.com
https://www.autometer.com
I've always said a stupid question is far easier to fix than a stupid mistake. An MSD window controller is an electronics box which allows a particular function to operate at a preset (by you) RPM. I don't remember if these can be made to operate 'stand-alone' or if they operate from an MSD ignition box- which is a very expensive route to a shift light. Xetmes has the better idea- go buy one. Cheaper in the long run, and you have some sort of warranty if it packs up. Try the links I gave, and there are several places here to buy either part online. I have no clue where to buy these parts in the UK. If you really want to go the DIY route, contact me by private messenger and I'll try to help you sort it out.
Posted By: Rortec
Date Posted: June 09, 2003 at 1:55 PM
cheers for all the replies guys. Ok this is starting to look like going out and buying one is far the simpler opition! lol Rory
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