Help Please-Flat Spot

Discussion in 'Modifications & DIY how-to' started by Nemesis Digital, Jul 13, 2006.

  1. Okay so Ive been searching a lot on Nasioc trying to find threads helping out, but sometimes I just get lost in all the arguing so Im hoping you guys can help me.

    The only mod I have is a Typhoon SRI, which has only helped me so far on the butt dyno in my opinion.


    But my problem is , the car pulls hard through first, but once I get to second gear around 4500k rpms the TQ seems to flatten and its not noticeable the car is pulling till I shift to third where everything is fine again. Yes, I had this problem even before the intake. My boost seems to fall a little too around this rpm.

    Any ideas what this is?
     
  2. moose

    moose Infina Mooooooose!

    No clue, but I have a second gear 'stumble' (just feels like a slight misfire) sometimes around 4500 so I wonder if the ECU is doing something strange around that rev range and it's just a lot more noticable for you. Is this only under WOT or at part throttle?
     
  3. All of this happens under WOT.

    ? anyone
     
    Last edited: Jul 13, 2006
  4. jayj713

    jayj713 Member


    Happens to me sometimes too :/
     
  5. GTscoob

    GTscoob Black is Beautiful

    Its probably the stock ECU making the car run really rich, tuning will help :naughty:

    These cars dont pull hard to redline from stock, the car is made for a lot of midrange, the boost tapers towards redline also.
     
  6. miloman

    miloman Retired Admin

    well, even with tuning these cars dont pull to redline... in fact i believe the torque falls harder up top after tuning.... damn dinky little stock turbos :p
     
  7. Alex

    Alex Community Founder Staff Member

    Datalogg it!
     
  8. yerrow

    yerrow Active Member

    4500 is where my torque peaked at the last dyno day . the baby turbo starts running outta breath and the car is tuned to start tapering off the boost soon after
     

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