Launch Control working on GPS Speed??

[faulkss]

Hi,

I have an MY05 STi running a M800 Plug in ECU with a CDL3 dash (I think it is called track kit – the one with all the bits)

We have enabled Launch Control on the ECU and have tuned it to work off wheel speed up to 60km/h. The issue that I am having is that the ground speed (from the GPS unit on the Dash) is only getting to about 15km/h by the time the wheels spin over 60 and therefore disable launch control.

Understandably this is not really what we are looking for. Is there a way to get the GPS Ground Speed from the CDL3 back into the ECU and use it in my launch control function?

Thanks

Steve

[faulkss]

Thanks Yuri!!

[Pavlo]

You're looking at it the wrong way!

What you should be asking yourself is "how do I stop the excessive wheelspin that I am getting on launch?" You can limit that if you want by ramping in the launch limit using GPS speed as well as a variety of other options, given the lag you will get from stationary with GPS speed.