I think I’ve found my ideal settings for myself and my family- 12/12 (compression/rebound turns from full stiff) all-around.
The front settings are identical to MPP's initial settings, and the back set to be more comfortable for rear passengers, especially on the 21" wheels. I think for those that do not have rear-seat passengers regularly in their Model Y, using MPP's initial settings which have firmer rear settings would perform the best and make the car sportier. If your rear passengers and cargo happen to be heavy, which would lead to less rear suspension movement and bounce, that could work too. The firmer rear settings of 10/8 (vs 12/12) seems to let the car:
- roll/rock less side-to-side (immediately apparent when sitting down and closing driver's door where the cabin resists shaking)
- be fully-planted on hard-acceleration below 40mph where the car produces max power and resists front lift / rear squat
- more solid hard-braking and direct brake pedal feel likely due to less dive
at 12/12 rear, it doesn't fully do the above, but is a good balance for rear passenger comfort.
With Michelin Pilot Sport AS4 at 41psi (42psi produces a big increase in resonant tire noise on the freeway in this car) and these settings, the car always feels balanced, sure-footed and has a great ride for everyone. It's agile at low speeds, stop-and-go hard acceleration and maneuvering in the street feels perfect, and glides at highway speeds with confident stability, great lane-changing and on sweeping bends; autopilot steering feel is also great.
Driving the car now makes me forget it's a heavy (compact) SUV.. it drives like a well set-up sports sedan or the perfect sporty SUV
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