Quote:
Originally Posted by ericholm
... I've got a massive issue with speedo calibration with this set up though, thinking of ways around that currently...
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For accurate calibration (at least to 70mph) I can recommend using a cycle speedo which triggers using a magnet on the wheel rim.
I ask for at least one clip-on weight to be used on the inner rim by the tyre shop. The magnet clings to that, helped by epoxy or filler.
The accuracy is only dependent on how you measure the rolling circumference of the wheel (in mm !!!)- chalk tyre and road, roll car one wheel rev, chalk road again, measure distance. And that will change as the tyre wears obviously.