Would anyone in the group have the skills/knowledge to design and build something like this?

It is a sequential shift light where the LEDs light up in sequence at 200 rpm stages (6000 redline first LED lights at 5200)

You mean like the MSD Shift light Stage 3 I just sold on eBay?

- R

To my knowledge allthe MSD shift light are just a single light that goes on at a pre-set RPM, not a sequential indiation of RPM

It's been a few years since i've been in school but some plans for something like that could be found I'm sure. I actually built something very similar to that using an DSP as an ADC and a series of LED's while in school (whole thing fit in a 2"x2" square).

If you wanted lights that big though you might need to run seperate power to them though as a DSP doesn't have a very high current output which would add a bit more complexity (but not much). Basically you'd just use the DSP (or ADC) like a series of relays.

I'm thinking 20-40 bux would probably be all that it would cost. If you wanted to give it a try I might even have some notes laying around for it. The chip I used was an ADSP-2181 but a simple ADC would suit your needs i'm sure.

Anyway sorry for the ramble, brought back some memories.

My bad, Autometer made it:

http://www.autometer.com/cat_accessorie ... px?vid=208

Thanks Tuna

now that is electronics geek talk ... that went right over my head, but that is OK, I don't need to know how to build it or how it work, just that it does work

The LEDs don't need to be large but I would like the very bright ones, and different colors. If you are interested in trying this project send me a PM

my brother could do it. It would be off your electronic tach signal right? How would you control the lights? would you want it switchable easily or set it once and never again until you hook it up to a computer again type of set-up.
Let me know
Andy

Andy, as long as there is some adjustment, once it is set it does not have to be changed, it is just ensuring that the initial calibration is correct. As for control, I would assume that tach signal would be used.

I can make the LED housing, so it is just the electronics

Thanks

I did a bit of looking around and found that it would depend what the signal is.

You have a crazy engine swap in there if I remember correctly. Is it an electronic signal to the tach? Or is it mechanical? If it's mechanical then you have to take the signal off the coil so then you're dealing with a frequency vs. just a voltage. Doing the frequency conversion is a fair bit more tricky but probably still doable.

That would make a difference how easy it is. Could you let me know? Then I can continue looking. Also, If you know what the range would be (if it's electronic) would help too but I'm sure we could figure that out with a bit of testing.

I am running a MSD distributor, MSD6AL ignition box, and I had to add a MSD Tach adapter so the factory tach worked. I am not sure what signal they are getting but here are some links that may help.

http://www.msdignition.com/dist_17.htm
http://www.msdignition.com/ignition_6_6420.htm