Hmm, I have never heard of a reduction in unsprung weight causing the suspension to become more harsh. I also can't think of any reason it would do so. If you keep the same tire but install a wheel that weighs 50% less the "comfort" should not change.
Good grief. There's so much nonsense in this it's hard to know where to start. Have you ever driven actually an old 911 Model S? They were just plain dangerous with SNAP trailing throttle oversteer. The earlier generation turbos were no better, and most of them ended up spinning out and getting in wrecks because of the same problem of trailing throttle oversteer. Indeed Porsche worked for decades to get nasty forms.of trailing throttle oversteer out of their 911. The newer caymans are great handling cars but they don't handle frankly any better than a properly set up model 3 with proper tires and suspension. Indeed they don't have higher skidpad numbers than a Model 3 that's been properly set up. While the model 3 is heavier (duh!), it also has a lower center of gravity and slightly lower lower polar moment of inertia than even a Cayman. Obviously, as Colin Chapman famously said "do your best design and then add lightness." So yes a lighter car even when you properly ratio your tires to vehicle weight, is going to feel more Nimble, but it's not going to have higher limits. Properly set up model 3s pretty much stay with just about any car out there in the corners. Talk to the people who are actually tracking the car and get their observations on who and what they can hang with in the corners. Get some data. Because your post actually shows the common but regrettable triumph of ideology and Doctrine over experience.
I think you're exposing yourself. Unsprung weight never I repeat never makes Cars ride worse. In fact the theoretically ideal car would have close to zero unsprung weight and its suspension would be able to track effortlessly or with much less effort and with much less inertia over all kinds of Road irregularities. But to get back to the issue which is ways that you can improve both the ride and the handling of the performance model 3, by all means get a forged lightweight 19-inch wheel and even with wider Tire say 265/35 you can shave almost 10 lb a corner off the current boat anchors. The Michelin Pilot Sport 4S is a great tire but that wheel is not a great wheel. Just replacing that makes a big difference. Then get the MPP Sports coilover kit and set it something like 10/8 or if you're really fiendish about handling 8/6 compression / rebound. Replace the front lower control arm bushing and the traction and trailing arms with the MPP spherical bushing items. Lastly, put significantly wider tires on the car. You will experience a transformed car at that point. Its turn in will astonish you. I speak from experience with my own heavily kitted out MP3.
How about 255/35/20 on 20x8.5 titan 7's? Titan 7 doesn't make TS-5 in 9.0's for the model 3 offsets, which is the recommended width for the tires.
Here in Italy we can't change tires . We HAVE to stay with 235/35-20 and or 245/35-20.
Wow, that's crazy. Guess I'm not moving to Italy lol.
