help lost 14 mph

[8byah6]

went out to the track kast night and went 13.9 @100 so wondering what the hell i try again same time .how can i go from a 11.9@114 to a 13.9@100 sure it was hot last night but don't see heat hurting that bad . all fluids are were they need to be vac at idel if fine af was perfect both runs oil press perfect .trying to get ideas were to start pulling the plugs tomorrow and comp/leak down testing her . if they check fine which i'm 99% sure it will could the trans be slipping that bad ?

 

[justinschmidt1]

Something is wrong...thats like losing 150 hp.

 

[BruhBrahBrad]

Make sure you clean the MAF lol...

 

[SVTHAHA]

You don't just loose 14mph with no other symptoms. How's the car running? Idling ok? Is it smoking? Does it have any funky smells? Does it sound different? Does it feel as fast as it used to?

 

[8byah6]

You don't just loose 14mph with no other symptoms. How's the car running? Idling ok? Is it smoking? Does it have any funky smells? Does it sound different? Does it feel as fast as it used to?

every things fine except being down on power so yes it feels dog slow now but a/f perfect oil press ok,timing is on i mean everything feels rite but no power if i had no clue to what the car can run i'd have tought it normal .why i'm starting to think it's the tranny binding up some how i've never had issues doing second gear burn outs last night she was having issues

 

[8byah6]

some one on turbo mustang said the sprag i the converter being bad will cause the problems i'm having

 

[SVTHAHA]

You could have a boost leak somewhere before the MAF as well. Check all your pipes. Pressurize the entire system, listen for hissing sounds. Is the turbo making proper boost? The same as always? Take a close look at the wastegate to make sure it's not opening too early.