I hear ya - but your blanket statement doesn't make it true either. for me, I couldn't tell the difference a bit, not even a tiny bit (and it was a concern of mine too until I asked another person that had the same wheels I got into)

 

Beauty is in the eye of the beholder so 19 v 20 is a personal preference. I personally don't like the 20's because they make the rotors look too small.

 

how about 21's?!

 

22s??? anyone anyone, Buehler? Buehler? :-)

 

I think the wagon wheel look is terrible on escalades let alone 911's. However I think the turbo rims and most of the new porsche rims look like complete azz, so it's all personal preference (other than the fact that smaller wheels are better for ride, handling, safety, unsprung weight, cost etc etc etc vs 19s 20s 20+)

 

have the oem 12" wide GT3 rims + 5mm spacer. nice n flush.

 

for street only you do not care what size tires you get IMHO and 8.5 and 11 rims will be just fine as anything else. that will be a perfect fit for 245/305 rubber.

for track you need to accomodate widest possible front tire, so 9" front is a given, or if you can roll up fenders a bit or do some more mods - 9.5" or even 10" wide front rim. CCW knows offsets for those sizes and you can speak to them about it if you want.

For rear if you get 9" front - 11.5" or 12" is a 'standard' option. 12" rim wants 335 rubber on it, 11.5" is good with 315 rubber on it.
9" wants 255 - I right now run 9" with 275 nitto nt01 and it also works fine, much better than it was with 245 RA1 tire on it.
Now if you get 8.5" front tire then max you can fit on it is really 245 tire, 255 will feel too wobbly and if you have 8.5" front and 12" rear then you get into severe disbalance as your rear tire is too wide for your front - you get uncorrectable understeer as rear tire is stretched and sidewalls are solid while front tire is wobbly on a rim that is too narrow.

And again, all that music makes sense when you want maximum traction in mid-corner on a track as you #1 priority. heavier wider tires mean less acceleration and as on street you never come even nearly close to cornering forces where extra wide rubber gives you benefits there is no proactical point to go beyond 245/305. I use 235/275 z1 dunlop star specs on 8/10 wide 18" rims for street and it feels awesome - ride is smooth and nice with great steering responsiveness. to offset track setup changes to suspension which allow me to fit 275/335 rubber i use those stock rims with 15mm spacer in front and 7mm spacer in rear and wheels do look perfectly fit.

 

Yes and since he has a 4S he would need the RS or Turbo version....GT3RS 19x12 wheels...or an after market wheel that would fit on a GT3RS or Turbo

 

ok i guess it comes down to a few things , one thing i do know, those who live in Toronto or have visited Toronto our roads are in rought shape so i i guess the more tire and air i have between the road and the rim the better so i found these wheels i like the info on them 8.5" fronts / 10.5" rea Offset: 45 mm fronts / 52 mm rear based on those numbers would i need spacers to have that flush look im looking for , thanks in advance

 

Do it, I have H&R springs and it works with pasm, no issues. It will lower it about an inch.

 

You DEFINITLY DO NOT want to use 10.5" wide rears....way to small...you really need 11-12" rears with a 305/30/19 tire.

The aftermarket wheels for your car that you see that are 10.5x19 for the rear are very very heavy and cheap cast wheel. STAY AWAY from those wheels.

 

thanks , thats great to know this is why when your a newbie its great to have forums like this .