That seems to work...what'd I do wrong?

Here you go. I don't see a place to enter revs per mile. Just enabled axle ratio/tire calibration, entered CC axle ratio (2.73) and tire size per sidewall (255/40/r19).

I'm unable to get a correct speedometer reading after enabling axle ratio/tire size calibration. I've got the CC axle code and P255/40/R19 tires. The stock setup reads about 2mph light at 80mph; what you'd expect with a slightly smaller diameter tire to stock. When I enable axle ratio/tire size ...

Download the latest PC update application (I1000_diablo_pc_app_app_2r01f.itf) and let the unit update the "updater" (may take a few minutes). When the "updater" eventually runs it will download a "group" update of all the latest databases...cheers!

The InTune shows four canned tunes, 93, 91, and 87 octane tunes plus a CAI tune. With the variable timing feature of this engine, what is the difference between the octane tunes? How is the CAI tune different than the xx octane tunes?

Thanks!