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So i got some mods done. Alky control meth, 9% pulley Arh headers, Corsa Xpipe, Halltech Cai. Made 588/628. Have not been to the track yet, my best time stock was 10.94 at 127. Just thought i would have made better numbers
The key as Mowe said is baseline to after modding. My car was 570/589 as a baseline on a dynojet which normally shows a 8-9% higher number than a Mustang dyno in my experience.
On pump gas - with meth (I don't remember if you stated you were on meth) - I dyno'd 682/720 - so my gains were fairly solid. I have more mods than you and a bigger lower (18% innovators west). On a super hot 2700+ DA day I went ~135 MPH - up from ~123-124 MPH without - same conditions. I was in regular sport mode (not PTM 3). I was on Cup 2's - no burn out as I just wanted to test trap speed. +10 MPH was a solid gain.
When you test - your trap speed (if equal DA/track prep etc) will tell you the real difference. My guess is you will be at least +5-7 MPH. And then remember there are "miracle air" DA days where you will gain another 1-3 MPH.
I just got my car back from Redline Motorsports in Pompano, FL.
I have a Halltech intake, 15% redline motorsports lower, ARH 2" headers, ARH catted x-pipe, AKRA exhaust, and alky methanol kit. Car made 700 RWHP and 748 RWTQ and runs amazing on my A8. Incredible.