Hi,

The RPM is picked up from the rollers only today. There have been several requests to also pick up engine RPM and through this automatically calculate the gear ratio and also flag if there is slippage. The system has 2 RPM inputs today, so it only needs a software change. Since so many have asked for this lately, I can move it up the priority.

If there is slippage the curves are wrong, yes. It is normally not difficult to see, unless the slippage is very smooth and small. In theory it could be possible to calculate the "true" curve even when there is slippage but you would need to know the MOI of the car in addition to the MOI of the rollers/brake. It is a bit complicated and may not be accurate, so I would only shoot for flagging slippage, not correct for it. 

Cheers,
Jostein

That would be great. You said that it is only software but i think that we need also the extra leads in the kits that is the Inductive Clamp that attaches to the HT Leads and also another one to pickup the RPM from coil on plugs. Maybe also in the future something that can read from an OBDII connector.

Great Job 🙂

Indeed. To use an inductive clamp you need an interface board. There are boards like that out there. If you have two rollers and want to detect slippage, you just use two RPM sensors.

Yes, I plan to interface OBDII in the future. I agree that would be a great additional option.

1+ on engine rpm with a indutive pickup to detect slippage and make it easy doing automatic cars 🙂