Joined: 20 Mar 2017
So I hooked the CoilX module to the kill switch wire on the snowmobile motor (which just grounds the ignition) and was able to generate a signal for RCP to pick up. It's a wasted spark system on a two stroke motor, and RCP was set up for 2 pulses per rotation. I'm recording RPM numbers that are 3 times too high (idle is usually around 2k, and i'm seeing 6k)
Any guesses why it's a little funky?
Also - the RPM readings are a little noisy. I think I can smooth it out a little with some averaging but I don't want to dilute the data too much. It's probably because of the super over sampling causing the readings to really bounce around but it's kinda big swings in numbers (+/- 500 rpm). I had it set to 5hz but i'll bump the recordings up a touch and see if I can get anything more steady.