• Welcome to SVTPerformance!
ATTENTION!
You may experience intermittent issues while accessing the site over the next 60-90 minutes, as we perform maintenance and upgrades.

Low tq numbers on gt 500 after mods

Discussion in 'SVT Shelby GT500' started by apg2369, Sep 22, 2006.

  1. apg2369

    apg2369 SNAKE OF ALL TRADES Established Member

    Messages:
    484
    Joined:
    Jan 25, 2006
    Location:
    montana
    Maybe somebody can tell me why were seing low tq numbers on gt 500's that have mods ?

    Ive seen good hp numbers just with cai @ tune 480-500...but tq numbers have been down in the 440-450 range ? I would think they would be up at the 500 range with a 5.4 ?

    my 03 cobra with c/b cai/ pulley @ tune put down 465 hp and 487 tq - thats with a 4.6

    Any thoughts ? (will a pulley solve the low tq problem)
     
  2. ON D BIT

    ON D BIT Finish First Established Member

    Messages:
    16,046
    Joined:
    Jul 7, 2003
    Location:
    Currently in Sonoma County
    i think a large part is the tune. within the tune you can decide if you would rather have more horsepower or more torque. most people choose the horsepower side of things. just a guess, i have no clue at tuning cars.

    with a pulley the power will increase both, at a greater rate than tune alone.
     
  3. jtfx6552

    jtfx6552 Well-Known Member Established Member

    Messages:
    2,583
    Joined:
    Jun 16, 2002
    Location:
    Southeast, PA
    Pulley will solve it.

    You are comparing a car at 9 -10 lbs of boost to a car with 13-15 lbs.

    GT500's have such good HP numbers for a few reasons, the main one is that the M122 holds the boost higher into the RPM band, keeping the Torque curve from dropping as quick as Terms with the M112.
     
  4. dgussin1

    dgussin1 If I offend you, IDGAF Established Member

    Messages:
    9,827
    Joined:
    Nov 17, 2003
    Location:
    los angeles
    where have you seen low torque numbers like that from modded shelby's? I made 460# at the rear wheels sae with 21* and 445# at 19* only mod is a tune.
     
  5. ON D BIT

    ON D BIT Finish First Established Member

    Messages:
    16,046
    Joined:
    Jul 7, 2003
    Location:
    Currently in Sonoma County
    the torque numbers are not low, just lower than the horsepower figures. he thought that after the tune torque and horsepower figures should increase about the same. meaning torque numbers would closer to the horsepower figures, something like 475rwhp and 469rwtq.
     
  6. Nathan'sTsi

    Nathan'sTsi New Member Established Member

    Messages:
    1,293
    Joined:
    Jan 14, 2004
    Location:
    Texas
    Torque is always going to boost related. You can see this by the bigger motor making the same torque as pullied/modded terms with 3-5 less psi. Also, other terms have higher torque relative to the hp becasue people also run aggressive lowers to get more boost in the bottom end, but the blower can't sustain it up top.
     
  7. chuckstang

    chuckstang Active Member Established Member

    Messages:
    11,540
    Joined:
    Oct 3, 2004
    Location:
    New England
    what does it take to get tq over 500? on the gt500
     

Share This Page