Dampning - rebound/compression stiffness ratio?

Thread in 'Drifting Chat / Pictures / Videos' started by Freddysideways, Oct 19, 2017.

  1. Freddysideways

    Freddysideways New Member

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    Hello

    As I understand, rebound should always be stiffer then compression.
    But how much stiffer?
    Ive heard some say that compression should be 50-75% as stiff.
    But having a rebound/compression ratio thats way different, is not good, atleast not in racing.
    Any tips?

    Thanks!
     
  2. Bu11et

    Bu11et Well-Known Member

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    I'd like to learn about this aswell - so any comments would be appreciated I guess
     
  3. pedrosixfour

    pedrosixfour Member

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    You sure that's right?

    Stiffer means slower to react and it was my understanding that rebound should act faster than compression to return the coilover to it's correct position as quickly as possible.
     
  4. Freddysideways

    Freddysideways New Member

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    A stiffer rebound setting = faster to rebound?
    While a stiffer compression setting = slower compression?

    I recently saw a video on Network A with Forsberg & Tuerck.
    They recommended to start in the middle of the clicks. So if ur coils have 32 clicks, then start at 16 clicks. But what should you adjust first? And if rebound always should be stiffer, then how u go about if you like a softer setting? :D
     
    #4 Freddysideways, Oct 21, 2017
    Last edited: Oct 21, 2017
  5. pedrosixfour

    pedrosixfour Member

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    No, a stiffer setting on either compression or rebound means it's slower to react, as there is more resistance to movement.

    Rebound damping that's too stiff reduces the coilover's ability to recover from a deflection before it has to absorb another one.

    Compression damping that's too stiff reduces the spring's ability to absorb the shock of a deflection. Meaning the chassis absorbs the shock instead.
     
  6. Freddysideways

    Freddysideways New Member

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    Oh!

    So is there any general rule of thumb tho?
    Stiffer rebound front, softer rear? Opposite?
    Compression stiffer in front vs rear?

    I saw a thread where a guy named "mitto" had given some dampning settings.
    Front : 8-12 clicks
    Rear: 12-16 clicks.
    I asume thats the rebound. Not bump. So what about bump? :D
    https://www.driftworks.com/forum/threads/drift-setup.5458/
     
    #6 Freddysideways, Oct 21, 2017
    Last edited: Oct 21, 2017
  7. pedrosixfour

    pedrosixfour Member

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    Apart from compression being stiffer than rebound I don't think there are any hard and fast rules, it's what makes chassis tuning such an art.

    Sadly I have no such talents.
     
  8. Freddysideways

    Freddysideways New Member

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    Alright, so compression a few clicks stiffer then rebound.

    Thanks anyway man! cleared up alot of things
     
  9. pedrosixfour

    pedrosixfour Member

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    You're most welcome Freddy, I've got a newfound interest in suspension lately as I've gone from a track car to a motorbike. The margin for error is greatly diminished!
     

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