I am trying to take information that RaceChrono is already recording, and using the equation editor built in, log a new field.
I am driving a pre OBD vehicle. I'd like to take the vehicle speed based on GPS, and using known gear ratios add a calculated RPM field. I know it won't be the most accurate measurement, but it would be useful to know to the nearest 250ish RPM, and I think the GPS speed could get close. I'd be able to see how much time is spent at what RPM, and it would be helpful to know to what degree sacrificing low RPM power for high RPM power will be worth it, etc. Personally, I've never shifted into 3rd, nor 1st after the first turn so I am okay with having the RPM hard-coded based on vehicle speed.
If I want to get fancy I could add a little logic, so that if the speed is greater than 61 assume 3rd gear transmission ratio and calculate a different RPM for example, etc.
