Well, we rolled the fenders so the 225 would fit, so I guess if I revert back to 205 then I can go that much lower lol. Post some pics when you can.

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be careful here
You can't look at only the nominal width of a tire, 245, 255, 265 etc. Fit depends on the wheel width and ET + the tire width and OD + ride height and suspension. It's the interaction of all of these that determines whether a wheel/tire combo works or not.

255/50 x16 is a ~26" +/- tire, 255/40 x17 is a 24.9" +/- tire, that extra inch of OD makes a huge difference in fit(and gearing)

here's a chart I put together showing some fitments that work and how close to the edge they are, the intersection of the dotted red lines marks a reasonable max, this isn't absolute as suspension spec and setup will also affect fitment. The chart is for a lowered but not slammed SC/Carrera body w/ stock suspension and street alignment. The wider the tire or wheel the less wiggle room, in front 8 ET25 to 31 is best but I've seen up to 9 here, in back the widest I've fit is 275 on 9.5ET19 there's no wiggle room on these, but I've seen up to 10

http://forums.pelicanparts.com/uploa...1474632298.gif

911s gearing and tires are all designed around a 25" +/- tire, you can go w/ shorter tires easily as this mostly affects speedo/odo and cruise rpm, but the taller the tire the worse it affects fitment

some typical 25" +/- tires for the back
225/50 x16 24.9" on average stock fitment on a 7ET23,3 or 8Et10.6, 8 is the widest wheel, spacers can be used to move the wheel clower to the lip if suspension allows it

245/45 x16 24.7" on average, fits well w/ 9ET15, 9 is the widest wheel, spacers can be used if suspension allows

255/40 x17 24.9" on average, fits well on a 9ET15, 10 is the widest(but tough to fit), spacers can be use if suspension allows

275/35 x17 24.7" on average, needs a 9 to 11" wheel, tough tire to find these days

255/35 x18 24.9" on average, needs an 8.5 to 10" wheel

From all accounts, great street tires. However, check inventory with Tire Rack and others. While this size is still applicable to many cars, you may find the matching 245-45s to be frequently out of stock or N/A. Currently, there are only a limited number of companies making decent 245's available.

Sherwood

^This is true. And you can't just stock pile 'em, because they do go bad on a shelf even in proper storage.

I'm still waiting for some tire company uninterested in profit to come out with a 255/40/16, etc. My car never felt faster than when running a 24" rear OD tire.

My 255s are on the other car, but I got the idea from my friend's SC who has 255s in the back, I'll find a picture.

Not 255/40/16, I assure you. I've got 255/40/17 on the back of mine, but it's about stock OD. I'm all about the reduced OD on the back axle when possible.

This begs the question, what is "proper storage" ? I'd say a tire stored in a black bag in a temperate storage area is better than having it mounted on a rolling vehicle exposed to sunlight, salt spray and ozone (and maybe an occasional spray from Fido or Fluffy, but that's just my WAG.

Manufacturers want the public to regularly replace tires every 5-6 years whether they're worn out or not. That's great for tire sales. RE11s aren't going to be around fairly soon. MHO.

Sherwood

I hear this, Sherwood. There is a practicality versus ultimate performance (never tapped into on the street) argument to be made for sure.

I think you're correct on proper storage: essentially, no weight on them, no sunlight, and for sticky tahrs, no storage under 40 or 50 degrees F.

Better alternative: drive your car so much "storage" doesn't enter the equation, and burn through that tread.

But forget the manufacturers, in whose best interest obviously lies the consumer buying a new set as often as possible: I've definitely felt the difference in stick between new (broken in) tires, and tires just a few short years/miles old. Will you notice this sort of thing on the street on a casual drive? Heck no. But if you're trying to apex at autocross, or even in suboptimal temps or rainy conditions on street, it can make a noticeable difference.

The RE-11 problem is a real crisis (in the most 1st world way possible :D), and I'm not sure what I'll do for my fat 16" tire needs post RE-11. Like I said, I'm pulling for some tire company hell bent on not making a dime to whip out some good, wide, old-school tire sizes in the future.

So what is the option for a 16 inch 205 or 225 front and 245 rear setup once the re11 eventually becomes unavailable?

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Switch the rears back to 8" on 225, that's my plan. The extra 1/2"? width of the 245 only really matters on the track and I can't imagine would have any change on street performance if driving within sane limits. The exterior appearance of the wheel is the "same" as 8s on Fuchs as well as how much it fills the wheel well.

To your previous question about 205 on 7 in front with 245 on 9 in rear with RE-11, "does it push?" -Thats my exact set up. The car is aligned & corner balanced, has uprated TBs 22/30, front camber plates at -1.8* and I've never felt it push in the least bit on the track driving it at the limit of my abilities, albeit aggressively. Im sure a expert driver at 100% could make anything push.

Don't know if it was 100% needed but front fender lips are rolled.
http://forums.pelicanparts.com/uploa...1474727768.jpg

If it were my car and a street car I'd put:
205/55/16 on the 7" up front
225/50/16 on the 8" in the rear
Plenty of tire for that car and you'll keep the rotating mass weight down a tad.

The other choice if you really want to do it would be:
225/50/16 on the 7" up front
245/45/16 on the 8" in the rear

Just got my new R1 Ss mounted. Very little clearance, but no rubbing.:cool:
225 and 245s on 7 &8" x 16s.
http://forums.pelicanparts.com/uploa...1474755671.jpg
http://forums.pelicanparts.com/uploa...1474755730.jpg

I've got 9 inch rears. Will the 225 be stretched on the rear if I switch from a 245 at some point?

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Yes.

So if I'm keeping my 7 and 9 inch by 16 inch setup for good, who else makes a 205/245 street tire that works?

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Tirerack.com shows 2 options for 205/245 combo

Pirelli - P ZERO TROFEO R (street legal tires)
Toyo - PROXES R888 (autocross only, not sure about street?)

Choices for matched sets do look slim.

Thanks for checking that.

You can use the toyos on the street but the drone will make you want to puncture your ear drums to make it stop....

Pirelli is a good option for sure.

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I think Trackrash means the 225 RE-11 will be over-stretched on a 9" rim. Bridgestone states that 8" should be the maximum rim width for their 225. When/if appropriate 245 street tires become no longer available, buy yourself some cheap 8" Euromeisters or real ones and put the proper width tire on it. If your 9s are real Fuchs you could sell them for a pretty penny but sooner or later the only people who will be able to utilize them will only be running track tires, still a substantial market.

I have 7 and 9 inch bbs RS.

http://uploads.tapatalk-cdn.com/2016...18c4d31d84.jpg

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Ahh.. Yes, that does make things more complicated.