Are you sure the speedo is under reading and not the rev counter over reading? The latter is more common and makes you think the former is true.raggatip said:Ive just joined the GTR register after just this week buying a very nice
R33 GTR.After 3 or 4 hours of driving,i am a bit dubious about how
accurate my speedo is.Anybody had problems with this before,or know how
to cure it?
How do you know it's under reading? GPS measurement? How much by?raggatip said:As far as i know the car was an original uk taster car from Middlehurst and
conversion done by them,but thats all i know.
cleland said:and the road angel showed 170mph