Horrible ride quality and can't figure out why

OptionZero · 12-30-2020, 03:13 PM

Quote:

Originally Posted by Ralphatron

I'm running stock tires all around. Got the car brand new back in June and I still only have 3k miles on it lol. BUT..... since I spent a ton of time trying to settle on a setup I liked, I drove around without an alignment enough to chew my tread down pretttttty bad. I know I know, but in a way I'm almost glad I'll be able to get rid of these crap tires soon. Here's the current status:

Stock Bridgestone Potenzas
Front: 245/40/19 @ 40-50% tread and 32psi
Rear: 275/35/19 @ 10-15% tread and 34psi

I think you learned a lesson or two about suspension components, but haven't we identified the problem right here?

Dead tires are going to have a MUCH greater affect than one degree or less of camber of fractions of a degree in toe

aint no coilovers, arms, or alignment thats gonna affect your car more than not having tread

Ralphatron · 12-30-2020, 04:43 PM

Quote:

Originally Posted by Spooler

That bolt was way over tightened so bad it stretched. WTH

yeah I honestly have no idea how it could have happened, especially from the factory. surprisingly it caused no issues at all when it was installed, just super ******* weird when I saw it

Quote:

Originally Posted by OptionZero

I think you learned a lesson or two about suspension components, but haven't we identified the problem right here?

Dead tires are going to have a MUCH greater affect than one degree or less of camber of fractions of a degree in toe

aint no coilovers, arms, or alignment thats gonna affect your car more than not having tread

I really really really hope this is what it is, or at least most of the reason. I would really love to know and understand the technical reason for it though. Like how does a 100% tread tire cause the car to not dart around as much? does the softer rubber absorb some energy when it happens? does a balder tire act like a stiffer wheel?

EDIT: I was able to measure about 2-3mm of remaining tread on the rears and about 4 or 5mm on the front. I don't know what the original tread depth was but I'll assum its a centimeter, so that would technically mean I'm at 20-30% in the rear and 40-50% in the front but not sure if that really makes a difference

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