Clean Sheet Front End

[ccracin]

Mark,

First, I really do appreciate your sharing your experiences. It sounds as though you make a living at this stuff. What is your company? The only reason I was looking at the MII was the availabilty of them to me from my circle track days. As I mention the AFX spindle has really peaked my interest. I need to talk to ATS to get some dimensions for layout. I am also considering some fabricated spindles from various CT suppliers. I absolutely agree with your comments on scrub radius.

As for the roll center migration, it was very important for consistancy on the circle track. I'm gathering from the lines in between the ones you wrote that it may not be the biggest battle to win in this situation. I'm going to get some more information on the AFX spindle before I do any more iterations.

With regard to your final points, 1. IMO there are a couple answers here. It has alot to do with your tires and the sidewall. The stiffer they are the less - camber needed. In turning it depends on your theories on caster and caster gain. Comments? On the CT 6deg of caster with an aggresive gain curve do to anti dive was very common.

2. Many people that I raced with ran what I called 3 wheel cars, they too forgot about the inside tire. This may not mean much to you, but I had my car setup that after a 25 lap race on a .5 mile oval the left front tire temp. was within 2-5 deg.F of the right front. This is why roll center migration was very important then. Most teams had 50+degF of split. It took 4 years to get there, but I did it.

I know bump steer, ackerman, caster gain,......... fun stuff. We have to be looney!

Thanks,

Chad