NC Training Guide - Miata.net

02 SUSPENSIONRear SuspensionMulti-link Rear Suspension ConstructionOptimized Link and Shock Absorber LayoutCompliance toe control• The suspension system layout is such thatthe center axis line of the shock absorberintersects to the outside and rear of thevirtual kingpin axis. This layout ensures thatthe toe-in moment is constantly producedaround the virtual kingpin axis of therear wheels. Due to this, the rear wheelsconstantly and securely provide a high levelof gripping power.Compliance camber control• Initial load in the negative camber directionis applied to the rear lateral links (upper/lower). Because of this, the bushingsanchoring the rear lateral links (upper/lower) to the rear crossmember areconstantly pressed toward the rear laterallinks. As a result, the central, nonsensitiveregion of the bushing is not used, therebyminimizing delayed steering responseand suppressing parasitic (unnecessary)wheel movement in response to externaldisturbances.Elongated links• Elongated upper and lower rear lateral links have been adopted. They reducetorsion applied to the bushings on the rear crossmember side during jounce andrebound of the rear wheels, providing smooth link behavior.• The damper lever ratio has been set at approximately 1 toimprove the effi ciency of shock absorber operation.— Damper lever ratio: shock absorber stroke (B)/wheelvertical stroke (A)— A layout with the damper lever ratio close to 1 makesit possible to provide a damping force even during minutestrokes. As result, excellent roadholding is exhibited in avariety of driving conditions.Mazda Technical TrainingMX-5 Miata New Model TrainingSG-113