• Welcome to SVTPerformance!

2.4 upper install

Discussion in '2013-14 Shelby GT500' started by nsstang, Feb 14, 2015.

  1. nsstang

    nsstang Nasty Style Established Member

    Messages:
    118
    Joined:
    Jun 12, 2009
    Location:
    York, PA
    So i just installed a 2.4 upper and when i spin the pulley by hand it binds and releases as i turn it. Should it bind at all or should it spin freely?
     
  2. BilletProShop

    BilletProShop Active Member Established Member

    Messages:
    2,662
    Joined:
    Jan 20, 2009
    Location:
    at the shop
    should spin freely, something isn`t right, i can assist if needed
     
  3. BilletProShop

    BilletProShop Active Member Established Member

    Messages:
    2,662
    Joined:
    Jan 20, 2009
    Location:
    at the shop
    should spin freely, something isn`t right, i can assist if needed
     
  4. 08KR525

    08KR525 Member Established Member

    Messages:
    307
    Joined:
    Jun 23, 2011
    Location:
    Midwest
    You may have pushed it on a bit to much. Try backing it off to see if that makes a difference. It should definitely spin freely.
     
  5. nsstang

    nsstang Nasty Style Established Member

    Messages:
    118
    Joined:
    Jun 12, 2009
    Location:
    York, PA
    I started it shut it down and now it spins freely. I didnt think you could push it on too far? Now when i start it stalls 3/4 times i start it. Is this normal with a custom tune?
     
  6. nsstang

    nsstang Nasty Style Established Member

    Messages:
    118
    Joined:
    Jun 12, 2009
    Location:
    York, PA
    I ran my finger across the shaft and pully and it feels flush.
     
  7. Vegasgold

    Vegasgold Member Established Member

    Messages:
    134
    Joined:
    Dec 21, 2013
    Location:
    Edmonton, Alberta Canada
    Stalling is not normal. Something is wrong.
     
  8. bklynpanman

    bklynpanman Member Established Member

    Messages:
    156
    Joined:
    Feb 12, 2014
    Location:
    NJ
    I had issues with a certain canned tune causing stalling at startup. Switched to a different tune. All good now
     
    Last edited: Feb 14, 2015
  9. VNMOUS1

    VNMOUS1 Well-Known Member Established Member

    Messages:
    4,777
    Joined:
    Nov 11, 2005
    Location:
    Eustis, FL
    It's not just the snout/pulley being flush. Check the "skirt" of the pulley and make sure you have some space between it and the housing.

    If your car is stalling you have:

    1. An air leak. Check that your sensor is in place properly. Does it look like there could be a leak?
    Make sure the sensor is pointed in the right direction.
    Make sure you have your sleeve (tube to throttle body) completely around the mouth of the TB. Pay particular attention to the bottom of the TB.

    2. Air connections. Are they all on?

    3. New TB? Make sure there are no leaks between the TB and inlet.

    4. Call your tuner and talk to them about it. A datalog will help.

    bj
     
  10. nsstang

    nsstang Nasty Style Established Member

    Messages:
    118
    Joined:
    Jun 12, 2009
    Location:
    York, PA
    The day started off installing a 2.4 upper with a metco auxiliary idler, JLT 127 CAI,Jon lund tune from Revan Racing and Bobs oil catch can driver and passenger on a completely bone stock car.Skirt has about 1/8 inch gap between pulley and supercharger housing still spinning freely now and I never touched the pulley not really sure what happened there. The first 3 or 4 starts it was stalling after 1-2 seconds. I reflashed the tune with the X4 and now its running fine. Is there any learning that the ecu needs to do after flashing it with a new tune?
     
    Last edited: Feb 14, 2015
  11. 2011 gtcs

    2011 gtcs GT500 poster Established Member

    Messages:
    6,712
    Joined:
    Mar 7, 2011
    Location:
    Arizona
    After you flash the ECU you want to let the car idle till it reaches operating temperature, than turn the A/C on for a minute than shut the A/C off, than shut the car off, that will allow the car to learn the idle, than take it for a drive and make sure it has good drive ability.
     

Share This Page