I knew I had seen this before, I just couldn't find it... lol, a ten year old thread.
I knew I had seen this before, I just couldn't find it... lol, a ten year old thread.
Yeah i had to do a similar thing when i was doing some 1km race events. I can't remember the exact math but it had something to do with rpm vs gear ratio & tyre diameter.
I never got around to do this so I could log mph higher than 158 but now that we are getting well into the 200+ I should like to log my actual mph. Have a 2006 and 2008 C6Z06 (E38) both manuals with different trans ratios and rear end ratios.
For the MT, you could write a calc pid that uses engine RPM, the axle ratio, and the gear ratio that you would be running in
( or have 6 calc pids, one for each gear ratio )
from the other thread mentioned above:
I'm know (pretty sure) that the following pids work only for the AT's:
- GM.TOS
- GM.TIS
- GM.GEAR
- GM.BOXRATIO