Today I auto-x’ed my car for the first time in ages. It was okay, but I think I have plenty of power on the table. I think I did well for someone who is essentially a newbie. I’ve been street tuning my car via map-based tuning, it works okay but I’m running super rich and getting horrible gas mileage. The problem with tuning ITBs is the fact that even under partial throttle, it is still pulling in 89+Kpa, which is pretty much full throttle on a normal car. So basically you have to choose between getting a good tune that makes good power and horrible gas mileage, or great gas mileage but horrible power. I chose the first one.
Recently I’ve been playing around with alpha-n tuning. Basically it calculates the load based on what TPS position you are at. It is awesome, I can tune it for cruising and when I want to go WOT. The more I learn about ITBs the more I realize that people on the internet are just ignorant saying it is impossible for a street car. It is mostly hearsay, from a friend of a friend….So far in my experience, I don’t have to get a different tune for different seasons, I can go up in altitude without changing my map, and my Idle with and without AC is great.