Test pipe. overboosting from the quick ramp up. Computer doesnt like it at all.
We tuned it out but there were two rpms depending on the gears (4-5-6)? i am sorry this was done quite awhile ago and i did not grasp all the details of the adjustments. But i think it was around 2800 at full thottle and maybe around 4700 again at throttle.
If i understand correctly, and i may not. The lack of back pressure from freed up exhaust causes little resistance for the impellers to just take off. Try throwing just the catalytic back on. Pretty easy.
I have an Aem cai and larger 3" smoothed turbo inlet 3.5 TMIC, 3" full exhaust.
But these are not what you describe. The cut is a hard cut. I mean hard have your seat belt on or hit the windshield.
I have had bad luck with octane boosters, lots of burbling and down on power. Because of Direct injection? not sure. I have run 100 octane from Delta sonic on occasion and never had an issue at all.
6100 with the stock tune the car starts to rein itself in and is laboring in the long gears at wot. The car likes to be shifted earlier than some with it's nice torque curve especially with stock tune, but the turbo map shows clearly i think, that it doesnt want to go much past 6000 before hot air is all you get.
do you monitor with a Dashawk or some similar data logger, looking for knock? and then timing retarding by ecu?
I hope i have not bored you but
i must say i am jealous of you on 3 occasions at least. 2 NSX'S really? and Buttonwillow to boot?
eric
Not fair Not fair at all Sir!