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Suspension setup 102, need help

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  • Suspension setup 102, need help

    I get a bit lost on suspension setup. I read all the books, but I want a "Suspension setup for dummies" book, and they don't sell one.

    I will break adjustments down to:

    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers - rebound
    Dampers - bump
    Spring rate

    what else am I missing ? I want to keep it simple though.

    I will break understeer / oversteer thing down to:
    Steady state corner entry
    Steady state mid corner
    Steady state corner exit
    Transitional behavior (is this more or less the same as corner entry)
    any others ?

    I will create a little Excel file, a cheat sheet. I will fill in the ones I know of and only if they will have significant impact.

    car oversteers in corner entry (like Jaku's car), what do I do with:
    Toe - add front toe-in
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers - rebound - soften front
    Dampers - bump - soften front
    Spring rate

    Car oversteers in mid corner, what do I do with:
    Toe
    Camber - add negative rear camber, and/or add positive front camber
    Caster
    Ride height -
    Tire pressure -
    Sway bar - stiffer front, soften rear
    Front wing - subtract
    Rear wing - add
    Dampers - rebound - don't matter much ?
    Dampers - bump - don't matter much ?
    Spring rate - stiffen front, soften rear

    Car oversteers in corner exit, what do I do with:
    Toe - add rear toe-in
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers - rebound - soften rear
    Dampers - bump - soften rear
    Spring rate

    Car oversteers on fast transient state (left to right, slalom like)
    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers - rebound
    Dampers - bump
    Spring rate
    Last edited by bellwilliam; 08-15-2008, 09:02 PM.
    S1 Supermiata - 220whp
    13 Tesla, ma: no engine !!
    17 GT350R
    03 Miata Club Sport
    96 NSX
    06 EVO MR
    15 Mini Cooper S
    Beck 550 Spyder

  • #2
    Originally posted by bellwilliam View Post
    I get a bit lost on suspension setup. I read all the books, but I want a "Suspension setup for dummies" book, and they don't sell one.

    I will break adjustments down to:

    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers
    Spring rate

    what else am I missing ? I want to keep it simple though.

    I will break understeer / oversteer thing down to:
    Steady state corner entry
    Steady state mid corner
    Steady state corner exit
    Slalom, fast transient.
    any others ?

    I will create a little Excel file, a cheat sheet.

    car oversteers on corner entry (like Jaku's car), what do I do with:
    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers
    Spring rate

    Car oversteers on mid corner, what do I do with:
    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers
    Spring rate

    Car oversteers on corner exit, what do I do with:
    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers
    Spring rate

    Car oversteers on fast transient state (left to right, slalom like)
    Toe
    Camber
    Caster
    Ride height
    Tire pressure
    Sway bar
    Front wing
    Rear wing
    Dampers
    Spring rate
    Read Manly's old post

    http://www.trackhq.com/forums/showthread.php?t=494
    Charles K. Ng


    Professional Racing Page:
    http://www.charlesngracing.com

    Driving Videos:
    http://www.youtube.com/user/ngcharleshk

    Facebook Fan Page:
    http://www.facebook.com/#/pages/Char...5341531?ref=ts

    Comment


    • #3
      Buy this book:

      https://shop.sae.org/servlets/produc...&PROD_CD=R-146

      But it's not for "dummies"
      The deposed former Sheriff of trackHQ . . .

      2006 Porsche 997 Carerra Coupe 6-MT - daily driver
      1992 Honda (Acura) NSX 5-MT - classic investment I couldn't resist and occasionally drive
      2004 Honda S2000 AP2 6-MT - my last track day car (FOR SALE or not, depending on how I feel when I fall out of bed tomorrow morning)
      2006 Mitsubishi Lancer Evolution IX MR 6-MT - when I need a backseat, 4-doors, or a real trunk, and still want to haul ass . . .

      Comment


      • #4
        You're also missing brake pads, brake bias, and tire stagger.

        Comment


        • #5
          Originally posted by MiataCharles_Hong_Kong View Post
          that's a very good link. answered 90% of my questions.
          Last edited by bellwilliam; 08-15-2008, 09:05 PM.
          S1 Supermiata - 220whp
          13 Tesla, ma: no engine !!
          17 GT350R
          03 Miata Club Sport
          96 NSX
          06 EVO MR
          15 Mini Cooper S
          Beck 550 Spyder

          Comment


          • #6
            Originally posted by bellwilliam View Post
            that's a very good link. answered 90% of my questions.
            Charles K. Ng


            Professional Racing Page:
            http://www.charlesngracing.com

            Driving Videos:
            http://www.youtube.com/user/ngcharleshk

            Facebook Fan Page:
            http://www.facebook.com/#/pages/Char...5341531?ref=ts

            Comment


            • #8
              Originally posted by J. Tyler View Post
              Have you tried logarithms?
              Yeah, but my wife got pregnant anyway. Now we use other protection.

              To the right of The Sheriff. Isn't everyone?

              Comment


              • #9
                Originally posted by Olitho View Post
                Yeah, but my wife got pregnant anyway. Now we use other protection.

                Wow.

                Comment


                • #10
                  Originally posted by Olitho View Post
                  Yeah, but my wife got pregnant anyway. Now we use other protection.

                  And that would be me boozing and trying to be funny at the same time
                  HP Autowerks 335i - 1st Place @ RTA Las Vegas 2010
                  HP Autowerks 335i @ Buttonwillow - 1:59.1
                  HP Autowerks 335i @ Laguna Seca
                  Buttonwillow dorifto
                  Lexus IS-F @ Chuckwalla
                  100cc TonyKart @ Adams
                  125cc TonyKart Shifter @ Apex

                  Comment

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