Blank Tacho Shift Light - Bringing it to Life!

[Mbwa-kali]

Been working through the full resto of my 1997 Chimaera and now moved to the interior where I've removed the dash to fix a few things like the heater dials and lights, broken clock, etc, ahead of a full strip out for a carpet and leather retrim. The tacho has been operating fine but when I pulled it out I was a little surprised to see the reason for there being no illumination was that there were no bulbs installed!! Ironically there was a bulb (with unterminated wiring) in the warning light port which I see from the Steve Heath guide is for a rev limiter or shift light.......but apparently was seldom connected up by TVR. I know it's of very limited everyday value to fit a shift light in the tacho but part of me says if it's there then why not at least make it work! So has anyone bothered to install an Omex shift light unit or equiv circuit to make the tacho shift light functional? This is obviously not a substitute for what might be installed for serious track work. Thanks.

[Belle427]

I enabled it on a Megasquirt conversion but to be honest did find it a waste of time.
The only indication you need really is when you bounce it on the limiter.

[Zener]

Belle427 said:

I enabled it on a Megasquirt conversion but to be honest did find it a waste of time.
The only indication you need really is when you bounce it on the limiter.

Yes but hitting the limiter even for a fraction is wasting tarmac

[s p a c e m a n]

I'd just be disappointed by it flashing when I was only two thirds of the way round the tacho

Always thought having it light up when the engine fans were on would be kind of useful

[Zener]

s p a c e m a n said:

I'd just be disappointed by it flashing when I was only two thirds of the way round the tacho

Always thought having it light up when the engine fans were on would be kind of useful

200 RPM short of the limiter more like mine also lights up if coolant temp exceeds 95c

[J-2]

I have mine wired up to show when the engine fans are on and it comes on when I use my override switch for the fans. I think that that is the best use for it on a road car as I don’t do track days.

[Mbwa-kali]

Thanks for all the comments and for keeping me away from the idea of a shift light which when lit would just be a reminder of the money I'd wasted on it!! Great idea of linking it into the fan circuit.