Too early in the morning.............. Correction to above post. Euro & US spec TT Z32's were factory fitted with 8.5" wide rear rims & 225 45ZR16 tyres. These rotate 522.17 times over a mile. The 8.5" tyres are 245 45ZR16's & rotate 3 revolutions more over a kilometre!
Fitted the GPS https://www.jaycar.com.au/lcd-gps-speedometer/p/LA9025 will post results after road test. Did a test in mates car and it was 3 1/2 km out.
Got bad news for you,did speed check with GPS Speedo and my speedo is spot on.So much for your maths and what I asked for was so easy to do but know it has to be a big drama on here as always. Drove her to day and she runs Beautiful as it always has.Cheers Peter RTE38.
As East Coast Z stated...... You told us that at 50kmhr=1500rpm and 100kmhr= 2500rpm. You don't have to be Albert Einstein to see that is mathematically impossible For those who are numerically challenged, here's a simplification ....... 50kmhr @ 1500rpm translates to 33.33kmhr per 1000rpm and 100kmhr @ 2500rpm translates to 40kmhr per 1000rpm This thread only became a big drama (your words) because you wanted to argue with the facts
So you are saying the GPS is wrong LOL Nice night all and thank you for all comments . Ill stay with GPS and Highway Patrol Radar as I had them pace her.
Actually I suspect your rev counter is not the most accurate at lower revs, or if you have an auto its slipping a little at those revs which is not unusual in my books. Infact if I remember correctly there is a torque converter lockup point where it does create a direct drive at a certain rev point.
No its not the rpm,no my cars are well looked after the auto don't slip. They are 20 inch wheels on my Z32.