Is it possible to adjust the speedo so its more accurate?
When at santa pod i crossed the line at just over 105mph but on the printout, which im sure is more accurate than my car, said 99mph.
Just something i wondered about and if its possible?
Shouldn't think so James, but at least it's erring on the safe side. Adjust your odometer for you though.
that's fairly standard on any car, they always over-read, even brand new ones. The faster you're going the more obvious it is. You can tell this by looking at the GPS speed on a sat-nav on the motorway.
Current EC regs state no under-reading allowed, but speedos are allowed to over-read by up to 10% + 2.5mph (or something very similar - it's a while since I had to check it!) Ergo many will be designed to over-read by a fair bit to ensure that over the range of component tolerances that you never get one under-reading.
oh right, just something i wondered about.
My audi says 30mph but the satellite says 28mph.
Might look at a small digital speedo that works off satellites. Prob a waste of time though.