Ideal Gearbox gear ratios

[Kyle D]

Is it just me, or do the "Wheel Revs" values seem WAY too high? Is "Wheel Revs" referring to wheel RPM? I only question it because aren't cars usually put into 3rd or 4th gear for dyno tuning (i.e. the gear that is closest to achieving a 1:1 wheel RPM to engine RPM ratio...) Or is "Wheel Rev" referring to something else that I'm not familiar with?... Thanks,

 

[Roger]

Is it just me, or do the "Wheel Revs" values seem WAY too high? Is "Wheel Revs" referring to wheel RPM? I only question it because aren't cars usually put into 3rd or 4th gear for dyno tuning (i.e. the gear that is closest to achieving a 1:1 wheel RPM to engine RPM ratio...) Or is "Wheel Rev" referring to something else that I'm not familiar with?... Thanks,

They're revs per hour, for easy conversion to kph / mph.

 

[Roger]

(i.e. the gear that is closest to achieving a 1:1 wheel RPM to engine RPM ratio...)

If you look at the gear ratios for the 'boxes in the spreadsheet, you'll see that 4th or 5th typically is close to 1:1, but you then have to account for the differential gearing at 3-4:1.