I'm leading the tech/rules team for my series and we have rules that use max rpm and max boost in a formula to class weight/power (no dynos).
The competition is not fierce (4-5 in each class fighting for the points, and 10-15 more grabbing a point or two during the season) so we want to keep it decently simple.
The plan is to be able to plug in a logger of any car in the lineup to log the actual rpms and boost used during the session and then make a readout in parc fermé afterwards.
I've been looking at options ranging from the EagleTree V4
to DL1 but the option I think of now is a LM2 combined with a decent MAP sensor.
The setup in each car would be a connection with 12V, ground, rpm and a small hose for MAP.
Would a LM2 with a suitable MAP sensor be rugged enough option to quickly mount to a car or would there be better options?
The LM2 seems to be a tough enough solution to me, and it's not that expensive.
Or are there options that could even be battery powered where you log on a SD-card and then just read it in your laptop.
We only need rpm and pressure over time (with resolution good enough to spot the difference between max used and spikes).
Oh, just for kicks, here's the formula
Power= 14.5*((Volume (L) – 1.1)*0.92+1.1)*((Maxrpm (Krpm) – 6.9)*0.79+6.9)*(1 + 0.60 * Maxboost (bar))
Do I need to say it's empirical (and 2valve, carbs etc have other factors)