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Thread: Changing displacement settings

  1. #1
    Tuner Pector55's Avatar
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    Changing displacement settings

    I've changed from a 5.7 to a 6.2 and I know many people go up in displacement with strokers, swapping in 6.4s, etc.
    I am also aware that changing some of the General | Type / Size / Displacement will put the car in "dyno mode."

    My question is.. is there a need or ability to ever change these? At this point, I left all 3 as 5.7.
    2013 Dodge Challenger RT Plus - Shaker

  2. #2
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    I thought if you don't change the displacement the result will be that the values entered for VE will be higher than normal.

  3. #3
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    Quote Originally Posted by Homer View Post
    I thought if you don't change the displacement the result will be that the values entered for VE will be higher than normal.
    That's my conflict. I feel as though I should change them but I am aware of changing them enabling dyno mode. There are 3 settings, perhaps 1 can be changed that make the calculations accurate. Right now mine are 5.7 and the car tuned just fine. I was mainly curious.
    2013 Dodge Challenger RT Plus - Shaker

  4. #4
    It dumfounds me that the displacement in tune affects traction control and other things not related. I made the same mistake when I put the 6.4 in. Now have 5.7 in displacement and left 6.4 in eng size.
    2013 Chrysler 300S, 6.4 BGM with 6.4 SRT cam, AIT 18% OD pulley, E-force with 2.75 pulley, fastman 84+4 mm throttle body, 1 7/8 kooks long tubes w/hi-flow cats, Magnaflow Cat-back, FTI 2800 stall , Dings Racing valve body and tune, Getrag 3.73

  5. #5
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    On the subject of these 3 fields (Engine Type, Engine Size, Displacement), airflow calculations are presumably based solely on the "Engine Size" parameter. I have seen no ill effects to ESP/TC when changing said parameter to reflect the displacement change.

  6. #6
    Tuner Pector55's Avatar
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    Quote Originally Posted by B00STJUNKY View Post
    On the subject of these 3 fields (Engine Type, Engine Size, Displacement), airflow calculations are presumably based solely on the "Engine Size" parameter. I have seen no ill effects to ESP/TC when changing said parameter to reflect the displacement change.
    That's what I was looking for. I will experiment with mine and see how it goes.
    2013 Dodge Challenger RT Plus - Shaker