phantomkartracer
Member
Why run so much? I see some chassis with some pretty high numbers. What is the purpose/what is the functionality of running such high negative R/S camber?
Why run so much? I see some chassis with some pretty high numbers. What is the purpose/what is the functionality of running such high negative R/S camber?
Are you suggesting more negative camber in RF for a champ kart?You want to use as much as you can but still turn, less tire contact less rolling resistance, Sr Champs always require more RF camber which I've always chalked up to the chassis being so tight with the welded cage, however with a flat kart set up higher RF camber seems to go hand and hand with higher cross set ups, again less tire patch contact less rolling resistance. This would be the K.I.S.S response.
Per Todd Goodwin the smart guy's response would be, RF camber works with the same physical phenomena as the LF. Camber thrust and tire spring rate. It also has the same tendency to move the effective scub radius around except that the negative camber on the RF tends to move the center of the contact patch in closer to the centerline of the chassis ( decreasing scrub radius ). Because we tend to run substantially higher camber angles on the RF, the effects on corner stiffness tend to be more pronounced. Because the RF is so heavily loaded on today's karts, it has more pronounced effects throughout the corner. One of the places RF camber can be used to adjust the kart is at corner entry. If the kart is pushing right at turn - in using a little less negative RF camber will often eliminate the problem. It will stiffen the RF corner causing it to load a little faster and eliminate the push. Another place RF camber can affect the kart is on exit, although at this location of the turn it is a little more difficult to predict how the adjustment will affect the kart. On one hand is the stiffness and the way it impacts the reloading of the rest of the chassis and on the other is the amount of tire on the track and the amount of involvement the outside sidewall plays. With respect to the stiffness, as the steering wheel is straightened , a stiffer RF will load the LR slightly faster ( unloading the RR at the same time ) slightly changing the grip balance across the back of the chassis.
First I must say I'm no champ guy, but on avg yes if 2.65 I'd avg for flat kart, 3.35 is probably avg for champ.Are you suggesting more negative camber in RF for a champ kart?
At least -3.5.... I’ve had guys running -4.25....Are you suggesting more negative camber in RF for a champ kart?