I went to the track today to some testing. I got my car a lot better from the standard setup. We race on low-medium grip carpet with Ride rex 34 tires (outdoor tire, but it's the control tire for our nationals).
This I what I ended up with (it was okay, but I think could still be better
)
Middle front link, 2mm bulkhead, 1,5mm C hub.
Short rear link, 1mm bulkhead, 4mm hub.
0mm ackerman, 1mm bump steer
0,5° outboard toe (0.5 FF, 0 RF)
2K rear diff
300 cts front and rear. Stock pistons (4x 1.1)
2.5-2.8 progressive springs front and rear
Droop: 5.6mm front / 4.6mm rear
Mazda 6 speed
10 min AME front
20 min AME rear
When I tried the progressive springs, I did use them in the front and stock in the rear. I didn't feel much improvement, I actually thought it was worse? Then I also tried them in the rear and the car was so stable entering a corner. I should have tried the stock front springs and progressive rears, but I hadn't enough time.
I also tried the 1.3mm swaybar in the rear as Alexander suggest and that felt really stable on corner entry together with the progressive springs. I could only test that combo for 2 minutes since the track was closing.
Corner entry was stable, but the car a lot of mid steering. A little too much actually.
How can I get a more stable car in the middle of a turn? I need to get early on power to make the car push a little so it doesn't breakout. It's hard to roll the car through the turn.
And can anyone tell me when it's good to the progressive springs? We have a big race over 3 weeks on CPX tires on medium-high grip carpet.
I'm an offroad drivers that likes to drive onroad during the winter, but everything is much more precise in onroad and a little different so any help is welcome :p