Well they do, but its not needed as much if your running under boost. 10psi of air is 10psi of air. It will help when your not pushing psi and idling.Chip Birks wrote: why don't turbo cars need constant baro?
http://www.diyautotune.com/catalog/mapd ... p-117.html
So I just re-read that fully 3 times to fully grock everything and yes I'm now under the believe that you need to run it even with boost, so you can get the correction while even boosting.
also its just better to have this incase it resets.
also just to clear it up for those not in the "know" megasquirt gets a single barometric pressure reading when it first starts.
what the map daddy does is lets it constantly get readings... so when your 5000 feet up in the air and drive down to 500 feet the change in elevation and barometric pressure changes how the car runs.
Thanks for making me re-evaluate that Chip.