Gravity GT - acceleration data (Dragy measured)

[037]

Split performance

 

[boydracing]

You are correct that I am assuming that it can't produce clean data because I've never seen it produce clean data and I've seen a lot of Dragy plots.
They all look like this:
View attachment 29342
Also, they are clearly filtering it which would hide any changes in jerk anyway.
Again, this does not mean it can't produce accurate 0-60 or 1/4 miles times.

Or this is just a sampling rate or display 'limitation' of draggy doing its measurements within a plot. There is a hardware tool and then the element of displaying the measurement date.

 

[Elfin]

Or this is just a sampling rate or display 'limitation' of draggy doing its measurements within a plot. There is a hardware tool and then the element of displaying the measurement date.

I think Draggy uses doppler shift from GPS signal to measure speed (I know VBOX works this way). When you take the derivative of speed to get acceleration force it's noisy.
Doesn't really matter what the limitation is though, my only point was that you can't measure changes in throttle response with Draggy.

 

[037]

I think Draggy uses doppler shift from GPS signal to measure speed (I know VBOX works this way). When you take the derivative of speed to get acceleration force it's noisy.
Doesn't really matter what the limitation is though, my only point was that you can't measure changes in throttle response with Draggy.

I think for $150 we gotta be realistic about what it can and can’t do. It measures performance accurately and that’s what I need.

With more $$ I am sure you can get more creative