This is something Ive not seen on any forum or the question ever asked. If you were to fit say for instance the 16" or 17" wheels, does this effect the overall diameter of the wheel and tyre combined, I would have thought it would have done as it would be difficult to get the dimension of the wheel and tyre exactly the same as the original. This would then reflect in the way the speedo reports the speed you are doing producing a false reading. As it is expecting the standard 15" and tyres. Can this be adjusted via software? If so who has had it done? Can it be done as part of a remap? I would have thought it would be possible but Ive never heard anyone mention them having it done.
The same goes for increasing the speedo numbers above 80mph via new dials, something I was thinking of doing when I get the car remapped. This would also require adjustment to report the correct speed to the new dials. How is this worked out? Because its a digital gauge there must be a multiplier involved but that would depend on where the markings are on the dials, the arc of the curve and the distance between markings etc... Calculating this is going to be fun so how can I ensure that its correct? Does anyone know the original parameters of the speedo setup?
Cheers
The same goes for increasing the speedo numbers above 80mph via new dials, something I was thinking of doing when I get the car remapped. This would also require adjustment to report the correct speed to the new dials. How is this worked out? Because its a digital gauge there must be a multiplier involved but that would depend on where the markings are on the dials, the arc of the curve and the distance between markings etc... Calculating this is going to be fun so how can I ensure that its correct? Does anyone know the original parameters of the speedo setup?
Cheers
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