[HWYSTR455]

Custom billet wheels are not cheap, as you recently found out. You want sticker shock? Price some forged billet wheels. (HRE, Fiske, etc)

Honestly, unless you are building an autocross or other competition car, picking wheels that are offered in 'popular' sizes is a much more affordable solution. You might be cornered into using a size tire that is one or two sizes smaller than the 'max', overall, you can still get acceptable performance out of them.

Using this approach, you should still be able to run a pretty decent size tire, as mentioned before. Also keep in mind, it is possible to go too big. When a tire patch (what is actually making contact to the ground) gets bigger, the corner load is spread over a greater area, and downforce is reduced. Not to mention things like the hydroplaning factor increases.

If your' budget has no bounds, with a DSE hydroformed frame and associated suspension, I have seen 325s on the front of a 2nd gen. Doing the rear Qudralink, you can go to a 355. But if $750 a wheel is mustering an 'ouch', don't bother looking into the DSE top of the line options.

You can have a 'custom' shop do the measurements for you, but it still only gets you close, and it is still dependent on the skill level of the shop. I personally think it's a waste of money, with time and attention, a DYI-er can easily do the measuring.

Also keep in mind once you go over 275, you will need wider wheels, and you already are squealing on the 8s & 9.5s.

You can also go to cruises and shows, look at similar cars and what they are running, to get ideas of what will fit.

Remember too that once you go to shorter sidewall tires, to get the 'correct' look, you will have to lower the car some. That's where all the 'rubber band' comments come from, a poor execution of plus sizing.

True too that once you go to a shorter sidewall, you need to make your suspension articulate freely in order to have proper handling and ride quality. But honestly, you should already have done that anyway, since to OE suspension is fairly ridged.

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