TOM B1

I have a Tremec TKO-500 in my 69 vette. I changed the dash to a Nordskog digital dash. the TKO 500 I ordered with a electronic speed sensor. but the pulses do not match the digital dash.
From the Nordskog directions the speed sensor needs to pulse between 2000 and 32000 pulses in one mile.
The TKO-500 came with a sensor that pulses between 33,000 to 60,000.
does anyone know what speed sensor I need.

One note, I tries to set up the Nordskog digital dash as per the instructions in one mile but the road speed is way to fast. speedo says 60 mph but only going 20 mph.

AboveTheLogic

Looks like Nordskog is now Intellitronix. Maybe they can help you:
https://intellitronix.com/contact-us

jfr's 63swc

TOM B1,

I am having the same issue - were you able to resolve this?

Jon

bazza77

http://www.dakotadigital.com/index.c...rod/prd126.htm

I used one of these (cant remember if it was the same one!) between an LS1 engine speed pulse output on its ECU to a 1977 tacho successfully.

So I could keep the dash original , works a treat !

Bikespace

That would do it. If you are handy with electronics, you need a frequency divider circuit. You could probably make one for a few bucks in parts and some soldering.
https://www.electronics-tutorials.ws...r/count_1.html

flyeri

jfr's 63swc

Hello,

Thanks for the response, I guess I should have been more clear. I am using the Intellitronix digital dash and the Tremec TKO500 transmission in a '63 corvette. The standard (and only) VSS on this transmission does not work directly with the Intellitronix. So, it is not an original gauge that I am trying to get to work.

I am not getting anything on the speedo other than 0 MPH!

Jon

jfr's 63swc

I can usually figure out or make just about anything, but since I have no clue what your link is about, I would have to say that I am NOT handy with electronics!

Thanks anyhow!

flyeri

I understand what you have and the Dakota Digital SGI5 will convert the TKO output to a range that your instrument can work with. I don't know your gear ratio or tire size but the TKO output on my car was 45007 ppm. By feeding that signal directly to an SGI5 and programing the correct divisor it fed my cruise control 24000 ppm. From your first post that range would work with your speedo.

jfr's 63swc

flyeri,

Thanks for the response and sorry for my delayed reply. I am currently working with Tech Support at Intellitronix to try and solve this without having to add more tech$$!

I did look at this item online and even read the manual. Still not sure how to program it. I currently have about 46,350ppm (calculated with tire size and defferential ratio) and need to get to 8000ppm for the current speedo calibration. How do you program the "correct divisor"? How accurately can that be done?

Thanks for your help.

Regards,

JFR
Jon

flyeri

My cruise control would work with lots of PPM's. You just had to tell it what to look for. I decided to use 24000 and I had 45008 which was way above what the cruise could read. My multiplier was .533 which gave me within just a few of the 24000. It is not that hard actually, at least not as hard as the instructions seem to make it. If you have to go that way pm me and with a phone call I can talk you through it.

Edit:
I looked at the instructions for your speedo and your original post. It looks like the speedo will also work with a wide range of PPM's but is calibrated at 8000 from the factory. All you really need to do is get it to a point between 2000 and 32000 and do the measured mile calibration. With the SGI you can set it up in High-High mode and input a .345 multiplier to calibrate to 16000 ppm. Then use output #3 which is 1/2 of output #1. That will yield 8000 ppm. The most accurate method will be the measured mile as it will see real world pulses rather than depending on the calibrated ones.

TOM B1

Yes I did.
I found an original speed sensor from Nordskog and it works great.
I also called Intellitronics and to my surprise they will replace your Nordskog with one of there new ones ,no charge, but I kept mine.
you need a speed sensor that counts from 2000 up to 32000 but it can go up to 60,000 . you need the low side for the nordskog dash.