EDO, your statement is correct. but you must differ between at and mt.
you have an mt car. here you have the following gear ratio and axle
gear I -4,06
gear II -2,40
gear III -1,58
gear IV -1,19
gear V -1,00
gear VI -0,87
axle - 3,08
for the at box i have the following numbers
gear I -4,171
gear II -2,340
gear III -1,521
gear IV -1,143
gear V -0,867
gear VI -0,691
axle - 3,727
i dont know the dimension of your tires. so i use the dimension of my tires for the calculation (255-30 R19). for tire scope i presuppose new tires (1938,85mm). sorry for the metric units
in fact of these numbers and requirements the mt car has a vmax at 7000rpm from 306,8km/h.
in your thread you says that you have round about 200rpm left at your 294km/h run. according to my calculations with my numbers your speed at 6800rpm is 298,1km/h. the difference between your gps and my calculation can be simple the scope of tires.
so you can see - the calculation on base the rpm is quite near to the gps.
and now the numbers for the at car. at 7000rpm the speed is 319,3 km/h. now i have logged a max rpm from 6967. thats true - unless the canbus liar.
and thats a speed of 317,7km/h.
that you say now?
okay, i must calculate a tollerance and measurement error. but i think the speed was clearly over 300km/h at this run.
on my next high speed test i have defnitly a driftbox in my car for gps data.
lars