Max Tire Size on a 348?

Picking up my new 348 on Thursday and I've already bought some wheels but now I need tires. I'm wondering if any of you are running some real meats on these cars and just how much tire we can fit out back. I know that yellow turbo car runs 315/30s and that's what I'm leaning towards. Any recommendations or pictures would be greatly appreciated!

 

Mmm I like the sound of that, any pics? Also how big did you go in front?

 

Nice! Any pics? Also what size are you running up front?

I've decided on the Toyo R888's and probably going with the 315/30s, just not sure how wide to go up front. I'll be tracking the car regularly so I want some good size up front but I don't know how big of a tire I can physically fit up there.

 

Ended up coming across a deal I couldn't pass up on a set of 315/30's so those are on the way and I've got a set of 255/35s laying in the garage that I'm going to test fit up front first and then go from there.

 

Apparently these are 315/30s, same size and tire I got.
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So I got the 315/30 R888's mounted up and they are AWESOME. I put some 255/35 Pirelli Corsas that I had laying around on the front for now and they're awesome but occasionally catch the front fender which I can't have especially with a track day right around the corner. Ideally I would like to run a 245/35 but they don't offer the R888's in that size, pretty much either 225/40, 235/40 or the 255/35. I'll probably end up with the 225's since I don't want the extra height associated with the 235's, my only concerns are that I won't have any tire overhang to protect the wheels from potholes etc. and these wheels don't exactly grow on trees. Also I'm wondering if I'll see considerably more under-steer on track with the smaller tire, I doubt it but I'd love to hear some opinions for those with any experience.

I'll try to post up some pics for you guys tomorrow, you get just these two from this weekend to hold you over in the meantime.
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That was all done by the previous owner, if you look closely you will also notice that he modified the front bumper for a little extra clearance. I'm in search of an OEM bumper that I will shave the side markers on and paint the whole thing white.

Your car looks great! What brake package is that up front?

 

Ya that's what I figured, I ended up getting the 225s and I've got a track day this Sat. so we'll see how things go.

Here's a pic of the 315/30s mounted up for you guys.
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