engine misses at high rpm

[pickens]

Have a 2017 mustang gt.It has ford stage one package.It runs great and will run up to 7000 r.p.m.s no problem. But when i run it up past 6000, shift it and floor it the car bogs down for a split second. shows no codes and it has been to two dealers so far with no luck. It has 3600 miles.Any ideas?

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[JohnD]

You have Power Pack 1 tune installed? Not positive but if PP1 includes no lift shift it could be that causing it. If you have a Steeda clutch spring installed, or are a little lazy getting off the clutch it will stutter on shifts. I have PP2 and for sure the no lift shift feature is a PITA, causes stuttering/misfire on shifts unless you really pay attention and are quick off the clutch.

 

[Lo Pony]

Disabling stability control with toggle hold?

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