I imagine it would destroy the engine and the transmission, but it’s just a guess.

  • AttackBunny@lemmy.world
    link
    fedilink
    arrow-up
    1
    ·
    edit-2
    1 year ago

    Each vehicle will differ some. It’s a matter of the weakest point. And largely what the driver does (start to let clutch out, and realize vs letting clutch completely out and mechanically over revving the engine). I’ve seen all manner of failure from misshift. Usually it’s 5 to 2 on the track. Sometimes it’s immediate catastrophic failure. Sometimes it’s like the video the other comment or posted.

    Edit: fixed a word and finished my thought. Hit send too soon the first time.

      • AttackBunny@lemmy.world
        link
        fedilink
        arrow-up
        2
        ·
        edit-2
        1 year ago

        Back in the early 2000s the celiac gt drivers loved to do the 5 to 2 shift. They claimed their was something wrong with the close ratio gearbox (spoiler it was really bad drivers) iirc Toyota even acquiesced and warrantied some of them. They were killing both the engine and trans. There was a pretty funny video floating around of some younger dude doing exactly that on YouTube. It didn’t sound good.

        As for others, I’ve seen windowed blocks, steam/smoke everywhere, gears with zero teeth left and shrapnel everywhere, crankshafts cracked (this one was part of a development program we were doing, and the guy did it more than once, I still don’t understand how)Needless to say, it got expensive for them.

        I can’t currently think of any of them that I witnessed. We just usually get the aftermath to deal with.

        Edit: to add, a lot of the cars we deal with already have stronger than stock/upgraded parts, so they don’t always follow the same failure pattern as a street car.

        People also don’t like to tell the whole story to the mechanic so we have to do some educated guessing how shit fails sometimes. We usually have seen it before and know exactly but sometimes people do some creative shit and we scratch our heads.