Clearenceing for 315's.

Well ive got my 315/30/18 BFG DR's mounted on my 18x10.5" ZO6 wheels. How much space should be between the tire and the fender? Im not sure if these tires expand any when you increase speed so i need to know how much room to leave? How much should i grind/cut on the bumper jouce?

Basically how much moddifying should i do? Its kind of hard to get a measurement in there so about how many fingers should i be able to fit between the sidewall and the wheel well.

Alright i pounded as much i could and i think its going to work. I havent moddified the bumper jouce yet. Would there be any problems in running around like that for a while until i get around to cutting/grinding it? I deffinately wont be lifting the car by the body anytime soon, i just need to know if everyday driveing will conflict with it.

I also didnt roll the fender lips. I dont think i will either because it looks like it doesnt need it.

Right now the closest thing to the tires are my stock LCA's. Will these rub or will i need to install some aftermarket ones?

You should be ok. You'll hear them rubbing if they are too close.
Remember you could get a flat while your out on the road then you have to lift your car by the body unless to carry I 2ton jack in your car.
And please make another post your on 666 and that can't be lucky.

And please make another post your on 666 and that can't be lucky.

Yeah i noticed that too. Well hopefully i wont get a flat and if i do i can just call somebody up and have them bring a jack and jack stands.

You have any pics?

Radial tires don't "grow" like slicks. Even if they did, the diameter would get larger and the sidewalls would pull in, making the space between the sidewall and the inner fender larger.

I run the 315/35-17's, with 17x11 50mm wheels, and these are the clearances I ended up with. The 315/30-18 BFG DR is 0.2" wider than the 315/35-17:

http://www.injuneer.com/images/photos/WheelsTires/TirClr1R.jpg

http://www.injuneer.com/images/photos/WheelsTires/TirClr2L.jpg

Looking up from below:

http://www.injuneer.com/images/photos/WheelsTires/TirClr5R.jpg

Well i think ive got enough clearence, im going to go for the first drive and hopefully everything goes alright. Ill post some pics later tonight.