JIM THEO

Are the 8” the right width for an 18” wheel with 225/40/18 tire on WRX?
I know that Prodrive’s wheels are all 18x7,5 inches but OZ as many other manufacturers produces all their Subaru dedicated wheels in 18x8” and local OZ dealer claims that it’s better to stay with 18x7” wheel rather go for an 18x8” due to better behavior of the tire with the narrower wheel!
I am thinking of a wider from the factory wheel to full the arches of my WRX (18x8 with 51 offset as the SuperL” means 1,45cm wider outside wheel compared with the factory one) but don’t want to spoil the comfort and performance of my car cause of the same phenomenon.
Also wheel weight is critical in this case as the Impreza 17x7” weights only 17+lb and only SuperL” is about the same weight (18lb) and if you add tire and that wider wheel with less offset (from Subaru 53 > OZ 51) means more "external" side weight I wonder how this affects steering, suspension and whole car’s behavior!
May be I am a little exceeding but such a small things play a huge rule on how our cars drive!
JIM

v5 man

iTrader: (4)

Jim, i have got 18x7 alloys with 225/40/18s on. I know what you are saying about filling the archs, thats why I got et45s. they come out slightly more, but cause no problems.

cliff

JIM THEO

I saw that Prodrive (Speedline) PFF7's are also 18x8" and ET51 so I guess the OZ SuperL" that are exactly the same specs won't be wrong.
JIM