• Welcome to SVTPerformance!

Fluttering Problem At or Near WOT

Discussion in 'Engine/Tuning' started by Rossim22, Jan 4, 2012.

  1. Rossim22

    Rossim22 New Member Established Member

    Messages:
    488
    Joined:
    Mar 24, 2010
    Location:
    Fort Myers, FL
    Only recent mod done was a modified fpdm. After the install I noticed that while trying to pass traffic in 6th gear there was a slight studdering at 75% throttle. Since I usually dont put the car under heavy load in high gears I thought maybe the car always did that. Since then I've been toying with it a bit and I get the fluttering feeling in 3rd and 4th when I'm not in the powerband and accelerating which is why it was happening in overdrive. 1st and 2nd it's almost always in the powerband so the affect isn't noticeable.

    The fluttering feeling itself feels like the powerband is really rough as if its struggling to continue through the gear. My tuner suggested that we might be running a little rich, so tonight when it was about 30* colder I toyed again. Contrary to what I thought would happen it was even more noticeable at lower gears than when its warmer leading me to think its leaning out rather than being a little rich. Any thoughts?

    Thanks
     
    Last edited: Jan 4, 2012
  2. Rossim22

    Rossim22 New Member Established Member

    Messages:
    488
    Joined:
    Mar 24, 2010
    Location:
    Fort Myers, FL
    Bump for some info
     
  3. cobracide

    cobracide Active Member Established Member

    Messages:
    7,724
    Joined:
    Aug 23, 2002
    Location:
    Cacky Lacky, USA
    Detonation? Check your plugs and datalog. Maybe clean the maf.
     

Share This Page