Cryptoman said:It depends on your rear tire, but based on the stock setup reading 6% high:
Sorry, let me correct myself. I have a 16/40 at -11.1%, but I still think your numbers will come up higher than mine with a radar gun. I think part of the problem is there is no definite error for the stock Speedo which is assumed to be 5% or higher, but obviously there must be variances among the stock gauges.bluedevil said:I think 18% is fairly high for the 16/41 which I have. I have not completly tested at higher speeds but I do have a radar gun and at -11.1% at 50mph it was only 1mph off. If the speedhealer can't correct after going another 100mph or so and be within at least 5mph after the 50mph tests than I think it is no better than the stock sensor for top speed results.