2010-2014 Mustang Information on The S197 {GenII}

"Flat spot" in Coyote power curve 6,000ish RPM?

Thread Tools
 
Search this Thread
 
Old May 18, 2015 | 06:49 AM
  #1  
MRGTX's Avatar
Thread Starter
Shelby GT350 Member
 
Joined: May 18, 2010
Posts: 2,318
Likes: 15
From: CT
"Flat spot" in Coyote power curve 6,000ish RPM?

Not sure if I'm just noticing this now or if it has been there all along but cosecutive 0-60 runs resulted in a mild flat spot high in the RPM range at WOT. It's like a slight hesitation in the pull...nothing dramatic but my passenged noticed it too.

I have 23,000 miles, all stock motor/drivetrain/tune.

Could this be a sign of trouble?

Any suggestions? The car drives astoundingly well in every other way.
Reply
Old May 18, 2015 | 06:51 AM
  #2  
MRGTX's Avatar
Thread Starter
Shelby GT350 Member
 
Joined: May 18, 2010
Posts: 2,318
Likes: 15
From: CT
FWIW, I have three more months on my powertrain warranty...so if something is going wrong...let it happen now!
Reply
Old May 18, 2015 | 09:40 AM
  #3  
DarrenGT's Avatar
Super Boss Lawman Member
 
Joined: October 16, 2012
Posts: 4,414
Likes: 215
From: Vancouver BC
Have you tuned your car? My mech noticed something similar during dyno runs and attributed it to the stock tune. something he'd seen before. my new performance tunes eliminated it.
Reply
Old May 18, 2015 | 11:42 AM
  #4  
MRGTX's Avatar
Thread Starter
Shelby GT350 Member
 
Joined: May 18, 2010
Posts: 2,318
Likes: 15
From: CT
Originally Posted by DarrenGT
Have you tuned your car? My mech noticed something similar during dyno runs and attributed it to the stock tune. something he'd seen before. my new performance tunes eliminated it.
Interesting...mine has a stock tune as well.

Do others find this? It wasn't alarming but it was noticable.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rando
2010-2014 Mustang
8
Aug 25, 2021 11:12 AM
RCooke08GT
2005-2009 Mustang
9
Feb 19, 2017 03:03 AM
Fedupdave42169
2015 - 2023 MUSTANG
1
Oct 23, 2015 09:58 AM
austin101385
'10-14 Shelby Mustangs
3
Oct 2, 2015 01:00 PM
exgto
2012-2013 BOSS 302
5
Sep 28, 2015 07:39 PM




All times are GMT -6. The time now is 11:35 AM.