A quick bump to ask people to post here or PM to me videos popping up with on-board RPM data. Specially in youtube, the lifetime of those videos might be very short, so an early warning helps.
In the current dataset most notably Ferrari is missing, but also Sauber and Caterham. For Lotus and Marussia the data came from single datapoints, and those from videos that are no longer available online.
I am also missing 8th from Mercedes, 1st from Williams, 1st and 8th from Force India, 8th from Toro Rosso and 1st from Red Bull.
Also, many of you have Sky Premium or equivalent, and can record tapes with lots of on-board time (I don't). If you want to help, I am happy to take Km/h - RPM pairs from you (even happier than if I have to do it myself). About 10 datapoints per gear are enough, so that one can detect outliers and the such, 20 datapoints per gear is better. Just send me a PM with the data in text format.
If anyone is going to do that, good datapoints come from acceleration zones without wheelspin. Cruising at half throttle is even better. Data spread over the RPM range, say, some running at 11000 together with some cruising at 7000 is much better still, and data spread over different parts of a session is just awesome. Only dry weather tires if at all possible, but with Malaysia, we'll see. Data on the pit lane limiter is not ideal but can be used, and in 1st gears might be the only data available without wheelspin. Bad datapoints to be avoided include anything with bakes on to any degree, the entry and apex of tight corners, and the moment just before or after a gear shift.