The stock configuration for my car is ...

Front wheel/tire: 17 x 7.5 / 225 50 17
Rear wheel/tire: 17 x 8 / 235 50 17

I've searched the SCCA Solo II rule book to see if I can change the width and profile of the tire (within the Stock category), but cannot find anything that specifically mentions this.

My objective is to have four tires with the same width - either 235 or 245 if it will safely fit - and remain in B Stock. I suspect that this is not allowed, since it is not identical to manufacturer specs, but was hoping one of you guys could confirm.

If you're wondering why I would want to do this, I got the general idea from this ARTICLE, but can't afford to buy all the new wheels and tires described therein. Perhaps one day later on. Until then I thought this might be a good thing to try. Please let me know if I'm off base on this line of thinking.

Here's the specific part of the article I am using to make my assumptions.

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Here's how we found it: Look closely at the 350Z's suspension and there's only one obvious reason why it shouldn't be balanced--the front tires are smaller than the rears. This may seem a laughably naive question, but why? Two reasons: It looks tough and it makes the lawyers happy.

Screw the lawyers.

Nissan engineers left an insane amount of room for wide tires and, naturally, there's more room in the back than up front. This has led most people to continue this ludicrous staggered tire setup by trying to stuff the rear wheel wells with as much tire as possible. We went the opposite way, stuffing as much tire as possible under the front fenders and then using that size at both ends.
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