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Thread: (Help from any track guys) Understeer

  1. #1
    Join Date
    Apr 2018
    Location
    Ft Lauderdale
    Posts
    115

    Default (Help from any track guys) Understeer

    Maybe it my driving skill (lack of) but I have noticed that I have massive understeer when it comes to long sweeping bends.
    Actually one left hander at West Palm Raceway.
    The car just seems unresponsive and I find myself slowing down more than I think I would need to to take the corner.
    I have tried adjusting the balance by breaking a little into the bend and loading the front but it will not turn in.
    My suspension is rock hard all round would softerning the back end help?
    Life Can Be Cruel

  2. #2
    Join Date
    Feb 2009
    Location
    NYC
    Posts
    4,520

    Default

    Can you give us an idea of what speeds you are doing? Entry/midst/exit please.
    Mike
    2010 Caterham CSR with Cosworth 2.3 Duratec
    2018 Caterham 420R with 2L Duratec 210hp at Donington UK
    1975 BMW CSL Group 4 (restoration - engine and dry sump install time)
    1977 Holden Torana "A9X" (awaiting restoration)
    1985 Holden Commodore Group A (restoration - engine rebuild)
    1982 Ferrari 400i (will repaint to original color in 2020)
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic

  3. #3
    Join Date
    Feb 2009
    Location
    NYC
    Posts
    4,520

    Default

    One other thing - do you have the anti roll bar installed?
    Mike
    2010 Caterham CSR with Cosworth 2.3 Duratec
    2018 Caterham 420R with 2L Duratec 210hp at Donington UK
    1975 BMW CSL Group 4 (restoration - engine and dry sump install time)
    1977 Holden Torana "A9X" (awaiting restoration)
    1985 Holden Commodore Group A (restoration - engine rebuild)
    1982 Ferrari 400i (will repaint to original color in 2020)
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic

  4. #4
    Join Date
    Jul 2009
    Location
    Arkansas and . . .
    Posts
    3,386

    Default

    Good article addressing understeer:

    https://driver61.com/uni/understeer/
    Stalker V8, chassis #85

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    Get up in the morning and give the day your very best. You donít get it back.

  5. #5
    Join Date
    May 2019
    Posts
    61

    Default

    Softening the rear will make it worse.

    I had the same issue, turns out the front springs were too stiff relative to the rear.

    If you have an adjustable rear ARB, try moving it to a stiffer setting.


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