Choose my wheel + tire setup...because I cannot.

Averying

I propose option #5: find 2 more rear stock rays for a square set and run 275 square RS4s. Shouldn’t be too hard to find someone selling stock rays and this would be cheaper than buying another square set of track wheels.

Otherwise I’d say option #4. Changing to 275 square RS4 will be a more noticeable increase in grip, compared to upping the width on the forgestars. Usually compound > width. And For reference, I run 285/35 PS4S on 9.5in wide front wheels and honestly they fit perfect. They could be wider and still fit, but the RS4s might be a different story. You’d probably want a 15mm front spacer if you go with this option since the stock front rays have a conservative offset

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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes

fairladyATX

So -- to clarify, for option #4, this will work?:
- Stock Rays
- 275s all around will fit
- 15mm spacer up front for clearance

Ah -- but just realized if I put on a 15mm spacer, I'd need to put on extended studs too. Then I'd need to remove the spacer and studs to put the Forgestars back on. 5mm doesn't need extended studs though...

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"Casual" track car...NASA TX.

Averying

Yes it will work. The front tires might have a slight “bulge” to them but it won’t be a problem.

You probably don’t even NEED a spacer, so I’m sure 5mm is sufficient. Or instead… get larger spacers, use extended studs and get open ended lug nuts, but that’s more work. I’d stick with 5mm spacer and avoid the headache.


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__________________
2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes

fairladyATX

Appreciate the info. I just pulled the trigger on this, will get them mounted up next week and see how it feels. thank you!

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"Casual" track car...NASA TX.

240se

I am running 275/35R19 RE71-RS square on the stock staggered Rays with no clearance problems and no spacers.