b'TECH TIP PAGETech Tip 3: There are three common suspension strategies. Lets discuss the pros & cons ofeach, so you can pick the best strategy for your goals. Conventional High Roll/Low Travel strategies began in the 1960s. It utilizes stiff spring rates& small sway bars in front with soft spring rates & no sway bar in the rear. The front enddoesnt dive much under hard brakingsay an inch or sobut the car does have a highbody/chassis roll angle, around 3 or 3, when cornering hard. This excessive roll angle overworks the outside tires in corners & underworks the inside tires.The tires heat up quicker & go away quicker, providing a good short run set-up. But after thetires come in the car is knife edgy to drive & very line sensitive. Drivers say, I cant driveit just anywhere. I have to be precise with my line & very smooth.As the track grip increases & the car rolls even more, these problems magnify. When it rolls alot & you brake hard, the inside rear tire has no grip. To prevent from being loose on entry youmust run even stiffer front springs, which makes the car tight/pushy in the middle, requiringthe driver to brake more and run slower corner speeds. Modern Low Roll/High Travel strategies started in the 1990s. They utilize soft spring rates &large sway bars in front & stiff spring rates & small sway bars in the rear. The front end dives alot on corner entrysay three, four inches or soand typically seals the spoiler/splitter tothe track. The car has low to ultra-low body/chassis roll angle, when cornering hard, between1/2 to 1, which equates to about 1/2" to 1.It cannot be driven as hard on corner entry, as a conventional set up, unless the rear suspensionis decoupled. It needs a soft brake strategy, to keep the mid corner rolling speed up. The low to ultra-low roll angle works all four tires more evenly. The tires heat up slower & last longer making a better long run set-up as the tires are good longer. It is less line sensitive. Driverssay, I can drive it just about anywheremeaning any line on the track.As the track grip increasesthe advantages show more. The soft spring, high travel front endcreates maximum grip on the front tires for the highest cornering speeds. This strategy willproduce the fastest cornering speeds & quicker lap times on road courses, compared to otherset-up strategies, all other things being equal.The Moderate Roll/Moderate Travel strategies are somewhere in-between on both front endtravel & roll angle. They utilize moderate spring rates & moderate size sway bars in front withsoft spring rates & a small sway bar in the rear. The front end dives two to two & half inchesunder brakingand the cars body/chassis roll angle is typically 1-1.5, when cornering hard.Due to the short, tight nature of autocross courses, this strategy is quickest.A Quick Rule of Thumb: DiveBody Roll AngleBody Roll InchesLow Travel/High Roll1" +/- 2-32-3Moderate Travel & Roll2" +/- 1-1.5 1-1.5High Travel/Low Roll3" +/- 11 Ultra-High Travel/low Roll4" +/- 0.51/2"Discuss whats best for you with Ron, based on your usage, goals & driving style/abilities.38'