Cal Club Autocross Forums

What's the widest tire you can fit on a 17" X 7.0" wheel? 225? Maybe 235?

Here's Tim A's 275 on a 6" Miata wheel ...



PaleroPhoto

A certain top AS STI National Competitor used 275's on I believe oem early STI 7" wheels

Tire width over wheel width ... when in doubt

Kurt Rahn wrote:What's the widest tire you can fit on a 17" X 7.0" wheel? 225? Maybe 235?

In stock class, you may run into wheel well clearnace first. Also keep in mind the tire height. Height is a big factor in wheel well clearance and the bigger the tire band the more tire width you can fit on a given size wheel.

Jay W

Often, adding camber ... if you can ... will help tuck the top of the tire in. You may need to roll your fenders.

Mako Koiwai wrote: You may need to roll your fenders.

Please don't encourage people to cheat. Kurt runs D-stock, there is no allowance for fender modifications.

Just giving general advice ... not class specific ... he didn't mention a specific class ... it could have been for another car that he's thinking about.

... but I thought minor fender rolling was ok for Stock classes ?

Mako Koiwai wrote:Just giving general advice ... not class specific ... he didn't mention a specific class ... it could have been for another car that he's thinking about.

... but I thought minor fender rolling was ok for Stock classes ?

Nope.

Mako Koiwai wrote:Just giving general advice ... not class specific ... he didn't mention a specific class ... it could have been for another car that he's thinking about.

... but I thought minor fender rolling was ok for Stock classes ?

If it doesn't say that you can, then you can't. First mention of fender rolling or alterations is in the ST and SP rules sections.

And in the context of who was asking the original question and the fact that he was asking about a wheel width that is not one of the size limits for the ST classes, one could very easily assume he was inquiring about a Stock class car.

Mako Koiwai wrote:Here's Tim A's 275 on a 6" Miata wheel ...



PaleroPhoto

Jeeeeeeeehosephat!

Kurt i was able to run a 225/50/16 Dunlop on my stock 6.5 inch wide ,16 inch rims.

With the Hoosiers i am at 245/45/16

I would go with a 235 or wider on your Whale.

So are there any other downsides, other than potential fender rubbing? Are there any seating problems or potential issues with the bead/sidewall? Tim's tire just looks...funny...like when you sit on a balloon, the moment just before it pops. It almost looks like it's going to roll off the wheel if he gets too much flexion in the sidewall, or just flat out blow.

Tom Denham wrote:Kurt i was able to run a 225/50/16 Dunlop on my stock 6.5 inch wide ,16 inch rims.

With the Hoosiers i am at 245/45/16

I would go with a 235 or wider on you Whale.

Actually I just bought tires for the whale. He has 8.0" wheels and plenty of room in the fenders...I could be running 275s pretty easily. I'm thinking ahead to whatever I get next. A couple of candidates have 17" X 7.0" wheels.

Kurt Rahn wrote: A couple of candidates have 17" X 7.0" wheels.

09 WRX

Max Hayter wrote:

Kurt Rahn wrote: A couple of candidates have 17" X 7.0" wheels.

09 WRX

That's one of them. :heyes:

I've been hoping someone bring one out so I can see how it does and possibly drive it. A few people I've talked to absolutely hate them, but I've only test driven one, so I have no idea how it reacts when you push it. I meant to talk to Annie at the ProSolo to see how she did during the couple months she owned hers.

It Pushes when you Push it.

... needs a huge front bar. People use between 27 and 32 mm bars.

Greg Peng and I believe Pete might be de-mod'ing their Suby's and could have parts available.

emailing you links ...

Mako Koiwai wrote:Greg Peng and I believe Pete might be de-mod'ing their Suby's and could have parts available.

Nothing really useful for a stock-class WRX except for a popular medium weight catback exhaust.

Hard to install. Many shops will refuse, some will damage the rim.

Jay W

Kurt Rahn wrote:So are there any other downsides, other than potential fender rubbing? Are there any seating problems or potential issues with the bead/sidewall? Tim's tire just looks...funny...like when you sit on a balloon, the moment just before it pops. It almost looks like it's going to roll off the wheel if he gets too much flexion in the sidewall, or just flat out blow.

Jayson Woodruff wrote:Hard to install. Many shops will refuse, some will damage the rim.

Jay W

Kurt Rahn wrote:So are there any other downsides, other than potential fender rubbing? Are there any seating problems or potential issues with the bead/sidewall? Tim's tire just looks...funny...like when you sit on a balloon, the moment just before it pops. It almost looks like it's going to roll off the wheel if he gets too much flexion in the sidewall, or just flat out blow.

let the tires sit in the sun for Hours before mounting them , goes on like butter.

On the MINI if you run anything wider than 225 you start running rubbing the front strut, and rear trailing arm with the inside sidewall.

Kurt Rahn wrote: A couple of candidates have 17" X 7.0" wheels.

Kurt..17x7 rims dont fit on a civic/crx very easily...=(

Jason Flores wrote:

Kurt Rahn wrote: A couple of candidates have 17" X 7.0" wheels.

Kurt..17x7 rims dont fit on a civic/crx very easily...=(

Unfortunately, I'm not buying a CRX (yet, anyway). This is for a new car that will run in one of the stock classes. Gotta ride this economy out for a awhile before I can get into more trouble than that.

For what it's worth??
On the 04 S2K. 17 X 7 front with 245 X 45 X 17, 17 X 8.5 Rear with 275 X 40 X 17 using either Kumho or Hoosier.

Jayson Woodruff wrote:Hard to install. Many shops will refuse, some will damage the rim.

Jay W

Kurt Rahn wrote:So are there any other downsides, other than potential fender rubbing? Are there any seating problems or potential issues with the bead/sidewall? Tim's tire just looks...funny...like when you sit on a balloon, the moment just before it pops. It almost looks like it's going to roll off the wheel if he gets too much flexion in the sidewall, or just flat out blow.

Hoosiers aren't too bad, any decent shop that actually tries can likely do it. The 710's are a different story, a space heater is a good start.

Jason Uyeda wrote:Hoosiers aren't too bad, any decent shop that actually tries can likely do it. The 710's are a different story, a space heater is a good start.

Whats up with that? Hoosiers "drive'' stiffer but 710 are harder to mount!