Ive bought the little handheld evoscan unit and i await its delivery. i currently have the profec e-01 laying around doing nothing. It has extensive boost control features (and timing/fuel which im not using) which I am not sure if the ecuflash/evoscan will replicate. should I just use the ecu to control the boost pressures i set? should I use the profec? where do I tap in for the RPM signal? If I install the profec, what pressure can I set within the stock map? I've heard the stock ecu lets the boost rush in and tapers off quite a bit...if I set a constant boost pressure with the controller what will happen? do I need to have it taper off or is it wiser to wait for the evoscan to edit the maps accordingly?

thanks

 

profec...or evoscan + stock boost solenoid? ...JDM MAP?

 

Sell the profec and control boost using the ECU, map sensor, and GM solenoid.