Since the Pedalmax can not change any of the setting in the calibration the Ecotec is running, it can only modify the signal going to the ECM for the pedal position, it can not change the Air/Fuel ratio. The pedalmax does not change the actual throttle blade position, it just requests a larger throttle blade opening quicker, that the ECM sees from the pedal position (gas pedal). That being the case, the air/fuel ratio will be exactly the same at the same loads with or without the pedalmax installed. Static spark timing should also be the same since the calibration has not been changed also at the same loads.
Some cars we work with do have an ECM that will provide more power depending on how fast the gas pedal is applied. The second generation MINI coopers that we work with will go into an overboost mode and provide more power if the gas pedal is pushed quickly compared to if it is slowly applied. This feature is not part of the MEFI controller calibration found in the Slingshot though.
Watching this thread over the weekend though, along with all the other threads and people asking what this thing does at the events prompted us to go ahead and order up a Pedalmax. It is supposed to be here in about a week (July 9th). With the software we have here we can see the pedal position and throttle position and see what the settings are doing. We will also open up the unit, see what is inside and any other data we can get to really answer what this thing is doing.
Hope that helps,
Brilliant! Thanks Dave, for doing the independent research that helps folks here make informed choices about their mods.
To be clear, I have no dog in this hunt, I'm not a vendor or developer, but I am a scientist. I stick to what I said earlier, if testing shows that the product is valuable and does what it claims in the performance enhancement department, it can only help their sales and build a loyal customer base.
I'm looking forward to seeing your results!