| Yep, to all that, you can program the dash with a bit of string not a dyno. Ehh?
Well, lay a bit of string (or a tape measure) in your drive. Mark a point on your tyre and push it along, your only measuring the circumference. With that number, you can do the rest of the math to workout (and programe in) whatever detail the dash needs. Eg. how far you are travelling per tyre revolution and how many pulses per rev of the sensor (if you put it on the gearbox O/P) is a simple calc on the 15/41 (or whatever) ratio of the final drive.
Happy to talk you through it if you want to give me a call.
Rgds, Rob | 
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