roll center question

[rcmaster]

to get the car to steer better ,would you move the static roll center left of center or right

[HEAVY DUTY]

That's a loaded question. Everything that you read tells you that moving the roll center left will make it turn better, but most everything you do on the RF to move the RC left causes you to loose camber gain. Loosing camber gain will hurt turning ( unless you have too much camber, which probably cant happen without shock clearance issues). If you try to move the RC left with the LF, you will loose camber when the LF compresses. Roll center isn't nearly as important as keeping the RF tire patch on the racetrack, and keeping the bump steer right.

[rcmaster]

what about moving Roll center left and adding static camber, or how much camber do you need to gain

[Ltemodel]

Actually, moving the roll center left should help your actual camber gain on the right front as you see it on the track. If you measure it statically on jack stands it will appear to have lost camber through bump, but you are not taking the body roll into account.

Do this little experiment. Take a piece of paper and make some imaginary front end pick up points on it as you are looking at the car from the front. Put your finger on the right side of the paper. This will represent a right side roll center. Then, swivel the paper around your finger to visualize the body roll of the car. You will notice that because the roll center is further right, the right front upper control arm mount will travel horizontally and decrease camber gain through roll. In order to get that camber gain back in you'll have to shorten the upper or put more angle on it ... etc.

Now, move you finger to the left side of the paper to represent a left side roll center and rotate the paper again. You'll notice that the right front upper mount will move horizontally less and vertically more. This actually will put more camber in the RF dynamically.

It will also keep the LF of the nose tucked down on the ground to keep more down force over the car to help it turn. (less air under the car)

There is a lot going on in the front end and there are trade offs everywhere. Just some food for thought though.

Good Luck,
Kevin