This isn't rocket science so there is absolutely no reason to make this complicated. So lets begin...
Can a 225/45/17 be mounted on the stock 17x6 wheel?
YES.
Has anybody here mounted a 225/45/17 on the stock wheel?
YES.
Is it safe to mount a 225/45/17 on the stock wheel?
NO. The reason being is that a 225/45/17 is designed to mount on a minimum wheel width of 7". The stock wheel is 1 inch shorther in width which will cause the sidewalls to become pinched inwards causing a unstable sidewall. This unstability under load (when cornering) may cause the sidewall to "buck" or "roll" over the wheels rim edge quite possibly puncturing the tire and causing it to fail. This is not something you want happening traveling at a high speed.
Has anyone ever had a problem with a 225/45/17 on the stock wheel?
I remember reading about one person having a blowout but other than that no one has ever reported any issues.
Does a 225/45/17 give more grip and traction on the stock wheel?
It may offer a slight improvement in traction but handling will suffer due to the reasons mentioned above in regards to the sidewall.
I don't claim to know anything about anything, but...
I am reading here in my July 1988 Hot Rod mag ("Dashing Daytonas", pg. 102) that the '88 Daytona Shelby Z (one of which I owned) "came equipped" (I have to assume that's from-the-factory) "with P225/50VR15 Goodyear Eagles on 15x6.5 cast aluminum wheels". That would suggest that 225s should fit fine on 7" wheels, right? Or is the issue the lower sidewall of the /45?
I don't remember anything "floaty" about the front of the Daytona. I could brake very late and drift the rear end under braking then accel. out without a sweat. It never needed an alignment either. (btw - I can hardly believe that after 15 years of suspension development that it pulls the same skidpad g's as a new SRT-4 = need more rubber).
Good thread - please respond - and thanks!
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