Put on new rear tires now car is difficult to control
04-13-2011, 05:53 PM
#21
Sidewall stiffness is a function of design, not a tire specification. There's nothing to mark them as such. One of the complaints by many people is that the Potenzas had a harsh ride, but those of us who autocrossed on them loved them because of the stiff sidewall (which caused the harsh ride).
There were people who switched to the Toyo Proxies and raved at how smooth the ride was (softer sidewall) but soon discovered how bad they handled, i.e. on the track, autox or in emergency manuvers.
I hate to say this might just be a case where you have a tire that isn't well suited to the Z. I doubt there's a quantitive way to measure or detect the problem - it's just something that shows up in use.
There were people who switched to the Toyo Proxies and raved at how smooth the ride was (softer sidewall) but soon discovered how bad they handled, i.e. on the track, autox or in emergency manuvers.
I hate to say this might just be a case where you have a tire that isn't well suited to the Z. I doubt there's a quantitive way to measure or detect the problem - it's just something that shows up in use.
04-13-2011, 08:05 PM
#22
New Member
Thread Starter
Sidewall stiffness is a function of design, not a tire specification. There's nothing to mark them as such. One of the complaints by many people is that the Potenzas had a harsh ride, but those of us who autocrossed on them loved them because of the stiff sidewall (which caused the harsh ride).
There were people who switched to the Toyo Proxies and raved at how smooth the ride was (softer sidewall) but soon discovered how bad they handled, i.e. on the track, autox or in emergency manuvers.
I hate to say this might just be a case where you have a tire that isn't well suited to the Z. I doubt there's a quantitive way to measure or detect the problem - it's just something that shows up in use.
There were people who switched to the Toyo Proxies and raved at how smooth the ride was (softer sidewall) but soon discovered how bad they handled, i.e. on the track, autox or in emergency manuvers.
I hate to say this might just be a case where you have a tire that isn't well suited to the Z. I doubt there's a quantitive way to measure or detect the problem - it's just something that shows up in use.
The reason I started this thread was cause I felt it was unsafe in an emergency situation on the freeway - as you described others reported. Id have to say it feels like the tires can't keep up with the car. Strangest thing. After the car rebounds it continues to wobble under the chassis, especially at higher speeds. If it breaks loose I'm not too sure I could catch it. I used to be very confident about that.
Is there are tire that anyone could recommend that has a strong sidewall by design and a higher treadwear? I can't keep these things on the car but for the cost the potenza re040 just wear out too quick for a daily driver.
07-02-2012, 01:01 PM
#23
Registered User
iTrader: (1)
Join Date: Jun 2007
Location: Houston
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
So what ended up happening? Did new tires solve the problem? I have the same problem now. I have Potenza RE960AS Pole Positions in the front and I just put RE970AS Pole Positions in the back. The car SUCKS now.
09-04-2012, 11:34 AM
#25
New Member
Thread Starter
I shouldn't have even wondered - it's high tread wear cheap Korean tire vs. a performance American y rated sticky $1000/set. I lost so much performance that I started this thread in hopes something wasn't seriously wrong with my car...besides those crap tires being attached to my wheels.
Given the price of a comparible tire ($800-1200 / set) and the price of the real deal Potenza RE 040 at Costco ($900 installed), I'm very aware of what my next set will be.
Thread
Thread Starter
Forum
Replies
Last Post
etkms
Engine & Drivetrain
29
06-19-2022 06:30 PM
