The Wheelers, Castleberry, Tang, Starr, and Myself got together 2 weeks ago at a track for 4 days to test on the car. Here are the things we have come up with to help the car on our tracks in the United States. I can't promise that I will be able to respond to a lot of questions because I am hardcore into my racing right now. I just wanted to show you guys what was going on in our heads.
Diffs
Try 335 cps or 333 cps, maybe surprised with the result. 5 in the rear locks the car in on exit, the 3 in the center puts more power to the front tires on exit so the rear stays planted, and the 3 in front doesn't give as much exit steering but it is balanced by it pulling the car out of the corner from the center giving it the power, it also allows the car to rotate into the corner.
The RCAMERICA Team are ranging from 233, 331, 333, 345, and 335. The car reacts well to the light oils.
Caster
Run the car with the least amount of kickup almost all the time. The car transfers a lot of weight to the nose off power and noses sometimes off of jumps when there is a lot of kickup. The Wheelers tried running 16 caster and it was incredible because like the diff setup the car rotates so well at low speeds, doesn't over-steer coming out of corners, and pushes at high speed making it feel more stable. Just watch out for high speed ruts
I tried this at the Ice Breaker II this weekend and it didn't feel as good as it did at our test track but the Wheelers ran this at CRCRC so it does work.
Sway Bar
Try the 2.6 in the front if the car is a little difficult to control, it will also improve the car through technical sections because it is more stable and response left to right but will push more on high speed long turns.
Rear Toe
Don't be scared to try 4 degree rear toe, however when the car breaks loose be ready to counter steer.
Shocks
We are all now running 1.4's in the front and 1.5's in the back. The front ranges from 500 - 600 xray oil and the rear 400 - 500 but typically 450. The Wheelers and I are also now using the Xray dark blue springs in the front and the light blue in the back. This suspension allows once again for the car to be more stable off power and it jumps higher and more level. Whatever springs you use just try the next range up in stiffness on the front from that company.
Length
The Wheelers like running the car short lately (rear uprights all the way forward).
