Originally Posted by KartaRailed

I hit 14 degrees peak on 20 psi. Close enough for me.

Originally Posted by TouringBubble

What's the use in winning if you know you're cheating?

Originally Posted by KartaRailed

I don't know about evo 9's but I picked up more power by adding timing than boost. If I tune to the edge at 20 psi and about 14 degrees of timing up top the car is noticably faster than if I tune for say, 23 psi and 9 degrees of timing up top, which seem to be the timing numbers that my motor starts seeing knock at. I would rather be able to tell people im on 20 pounds than 23 as well.

Originally Posted by tephra

the reason why you guys aren't seeing any more power when adding more boost than 20psi is because the IX turbo is hitting its efficiency level at about 19-20psi (at redline) .. so after that its just blowing hot air

Originally Posted by lemmonhead

I lean out ontop and add timing starting before the leaning. I also increased boost to 21-22 with better results than everything same but boost decreased to 20