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Old 04-01-2013, 07:59 AM   #10
Scooby Guru
Member#: 442
Join Date: Oct 1999
Chapter/Region: NESIC
Location: RI/SE Mass
17 OK Sport
00 S2000


Originally Posted by sager View Post
It is just that the wheels and tires feel a bit "late" to react to the sharp edged bumps.
Softer/taller sidewalls will delay/prevent even more 'feel' from being transferred to the steering wheel. So, taller sidewalls will make the effect your feeling effect greater, called late reacting.. because it delays the transfer of vibration "feel" from steering wheel to actual input, and vice versa from tire to steering wheel.

IOW, a late reacting tire is a 2-pronged equasion. 1) squirmy tread blocks and 2) soft sidewalls. It could be either/or ... or both. More marshmellowy. (new word!)

The feeling is similar to the run-flat tires on our E90 in some respects. I was wondering how the different sidewall heights and stiffness, coupled with the larger un-sprung mass of the larger and larger setups would impact the ride and if anyone could comment on this effect.
It sounds like you want to feel the road better and have more communicative tires?

Then either putting on stock-sized summer tires (not all seasons, meaning you have a set for summer and a set for winter) or... "performance" all-seasons (Continental ExtreamaContact DWS) are what you're looking for... the tires will be a LOT more communicative and you will feel the bumps more, and at the cost of increased Noise/Vibration/Harshness (NVH). It's all a trade-off.

You cannot go to a softer/taller sidewall and at the same time increase road/tire feel. Doesn't wok that way. In fact, it's the opposite.

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