Lik

If you pay attention to how your car responses when you are behind the wheels, then yes, you will notice a difference. If you enjoy spirited drives, then yes, you will notice them. If you track your gas milage, then you will also notice a few percents' worth of differences. Heck, whenever my car gets an oil change done, I notice the minute difference in my car's throttle response and smoothness too.

But if you are a typical Richmond C9, then ha, you probably won't notice it la~

-Lik

celeron_266

Minor correction here:

When you go with a wider tire on the same car, the contact patch doesn't ne ...
Lik 發表於 2011-7-16 21:26

    this probably applies to when there is equal sidewall support for both tire widths, but like you said in a previous post, i only have one set of tires (7Jx16), and putting 225mm tires into 7in wheels will reduce sidewall support for a bit, resulting in tire deformation during turning, how will this counteract the increased lateral acceleration provided from the wider tires?

Lik

Stock class autox-ers regularly run the widest possible tire they can find on their stock-sized wheels, and these guys are the ones who care the most about lateral grip. So you can expect the 225 tire to have more ultimate lateral grip than the 205 even though the sidewall support is poorer. On the other hand, you should also expect poorer steering response (more vague, greater delay as there is more sidewall flex in the tires) from the wider tire.

Either will be fine for street use, but I wouldn't bother with the 225 tire since the 205 tire will be cheaper. But seriously, on the street, I'd rather have sharper steering response since you would rarely need the slightly higher grip levels of the wider tire anyway.

-Lik