Will it work?
Or what size would fit on an FC.
I'm looking at xxr 526's

 

According to the chart on FC3SPRO.com 10 wide +20-+25 will fit depending on what tire you use in the rear, the chart says that to run anything 9wide or wider you will need widebody in the front.

http://fc3spro.com/TECH/MODS/RT/rims.htm
Good luck.

 

+25 works fine in back. I ran 17x10.5 +27 (mustang wheels) for a while with no spacers, 285 tires and rolled fenders.

for the front, go with +20, and you may need spacers depending on your suspension

 

What's the widest I can run in the front without having to get widebody fenders?

 

What's the widest I can run in the front without having to get widebody fenders?

Depends on how much other work you want to do and how much negative camber you are willing to run.

On my suspension set up I just measured and up front I could run 255/40-17 on 17x10 +10 and tuck the tire with stock front fenders (just lips rolled under). Because of the mods needed to get the negative camber you will need the +10 to clear the suspension.

The actual lip of the rim would stick out 3/4" from the fender at the top, but the stretch would bring the tire under the fender.

That is some machine work done to Stance XR coilovers to get 5.5 deg negative camber.

BTW I think this is a silly idea.

 

Thanks for the information.
It may sound silly, but it's what I want to though.
Thanks for the feedback as well.