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Overdrive?

This is a discussion on Overdrive? within the Automatic Transmission forums, part of the Drivetrain category; When you are using the manual 1,2,3 and D gears, Will they hurt the motor in anyway if shifted correctly, ...

  1. #1
    I Drive A 95' AfterYou's Avatar
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    01' Firebird Pewter
    98' Trans Am Black

    Overdrive?

    When you are using the manual 1,2,3 and D gears, Will they hurt the motor in anyway if shifted correctly, overtime will it cause damage?

  2. #2
    Member c5z28's Avatar
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    On your ass flashing
    my highbeams

    1.You can't shift faster than the computer
    2. You can hurt the trans it by downshifting
    3.Only reason I ever manually shift is to hold it in gear during autox

  3. #3
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    The computer won't let you damage the motor by downshifting but as stated there isn't any reason or advantage to shifting the transmission yourself.
    If you're traveling down a mountain road, you could use 2 to provide some engine braking so you don't have to ride your brake pedal the whole way down the mountain and burn up your brake pads.

  4. #4
    I Drive A 95' AfterYou's Avatar
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    01' Firebird Pewter
    98' Trans Am Black

    thanks! it was just a personal knowedge kind of thing, always been in the back of my mind

  5. #5
    Senior Member JaycenK's Avatar
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    There is an advantage to shifting the trans on your own and its to keep from swapping ends lol. With my 383 and street tires I manually shift it because if I didn't the thing would be in third and backwards before I knew it. Other than that this is a debate that has lasted as long as the trans it's self. For a stock setup yes put it in drive and go. If you tring to launch on street tires, lol do the 1 to 2 on your own and let the computer shift 2 to 3. Just under stand the hanging rpms are not good for the engine unless you built it for that.

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