Max Mört and I have tested some shock settings the last couple of days, with Max testing front pistons, and me rear. We came up with a setup that was better on our home track, which is medium grip, a lot of off camber, elevation changes, big and small jumps, hairpins and sweeping corners. So a bit of everything, great for testing. Our conclusions so far:
Front: 5 x 1.4mm Flat piston, 400cst (30wt) at 20deg. I assume anywhere else in the world, start with one or two steps thicker oil. The feel is medium, you feel the oil, but it doesn’t feel thick or slow.
Rear: 7 x 1.4mm Flat piston, 350cst (27.5wt) at 20 deg. I assume anywhere else in the world, start with one or two steps thicker oil. The feel is light, you feel the oil slightly, it doesn’t feel springy, but it is light and fast.
Springs: JQ grey all round, or HB Yellow, or Kyosho Blue. JQ gives less support, so if the car feels too soft, try one of the others. We didn’t compare HB and Kyosho back to back. They were both good, a bit more firm than the JQs.
Locations: Outer on both towers, middle on both arms.
Ride height: 26mm front and rear. If it feels like it isn’t going over bumps or jumps well, raise to 27, or max 28. But start with 26/26.
Downtravel: Measuring like this, 58mm front and rear with AKA Grid Irons.
Conclusion: This setup improved how the car landed, it didn’t slap the front end and get unsettled, it also made the front ride higher, it didn’t seem to dive as much in bumps and on corner entry. The rear was more plush and handled the bumps better. It had a bit more of that “wet rag” feel, where it just follows the track conforming to the track like a wet rag being pulled along the surface. I also ran conical pistons, flat side up, which were great, but I have some other things I am testing which make the car more stable, and that’s why I may be able to get away with running them. Flats are the safe bet.