C Murda

iTrader: (24)

im sure this question has been asked but i searched and got nothing...im wondering if a pair of Z06 rims 18x10.5 rims will fit 315s? they have a 58mm backspacing, will that be ok to fit on a 2002 Z28?

93formto98T/A

iTrader: (28)

They will fit but first you have to go about finding a 315x18 tire as they are very rare and expensive. Then you'll have to go about hammering in the rear fenders for clearance so they won't rub.

Ryne @ CMS

iTrader: (10)

bfg g-force radial, comes in a 315-30-18

Fulton 1

iTrader: (9)

Michelins are also available in 315/30/18 and are within spec for a 10.5" wheel. With a 58mm backspacing, though, you are most likely going to need BFH. You might want to consider finding a high quality 1/4" spacer to run with those wheels, which should help. Of course you should plan on rolling the fenders as well if you're lowered.

C Murda

iTrader: (24)

ya not lowered yet but will be doing that too. now you say a high quality spacer? what kind is high quality and where can i get it?

Fulton 1

iTrader: (9)

A high quality spacer is a machined aluminum, hubcentric design that is made specifically for your application. I'm not a fan of the
"one-size-fits-all" cast spacers that you get from Autozone for $7. I haven't looked lately as to where you'd get good spacers these days. H&R used to make a nice 5mm spacer for our application, but they now seem to be discontinued. Not sure of any sponsors carrying anything like this. If nothing else you might give Andris at Skulte (http://www.skulte.com) a call and see if he can make you a pair - he does very nice work with adapters. The key would be that its hubcentric, has the required 5x120.65mm pattern, and is 1/4" or less in thickness (unless you want to install longer wheel studs). Plan on spending anywhere from $50-100 for a pair.

Hope that makes sense...

EDIT: just spoke with Andris and he said he can machine a 1/4" spacer. I'd highly recommend giving him a call if you're interested in something like that...

carado1984

you can also try customwheelsmarket.com.. ive been using mine for a while now with no problems... give them a call if you dont feel like spending upwards of 50$... and if you want 315's expect spending north of 300$ a tire.. unless you get a drag radial

blkslpr

just to add a little bit of a Question to this. Im pickin up some of the Zo6 wheels from toms wheels. 17x9.5 in the front and 18x10.5. Ive got a 93 z28. What wouldnt rub in the front and rear. i have the sportline lowering kit from eibach. i was thinking 315's in the rear and 255 or 265s in the front. any help would be appriciated and also what would look betta

carado1984

the front size shouldnt matter because you should be able to run a 275/40/17 in the front, since its stock on SS's, and lower it and be fine... the backs going to rub with a 315/30/18.. if you want something that big, itll look great, but its going to take some work.. i use a 275/40/17 front and 295/35/18 rear.. both of those tires are the same height and youll only need a 1/4 in. spacer in the rear and cut the bumpstops.. lowered, youll need to cut or roll the rear fenders... and lowered + 315's is more work..... but itll look mean

Ferocity02

iTrader: (60)

I'm planning on doing this also. A spacer is definitly needed in the back, along with the BFH mod, bump stop mod, and fender rolling. If you use a spacer you will need longer studs. If you use an adapter you can use the stock studs I believe.

blkslpr

what exactly would i have to do to the bump stop and how much is rolling fenders usually price wise. and will it crack the paint ?

Fulton 1

iTrader: (9)

1/4" spacer or less and you'll be fine with the stock wheel studs. The trick is to get at least 6 turns worth of thread engagement on the lug nuts with the spacer installed. Another thing to think about is that if you have an aftermarket rear you'll probably be better off since most of the aftermarket wheel studs are threaded all the way to the end. You'll notice that the stock wheel stud threads stop well short of the end. For example, I get 8 turns on my lugs with Strange 12-bolt wheel studs and a 5mm spacer out back (this is about the same as I got with no spacer and stock wheel studs).

If you're looking for something larger than 1/4" then, yes, you'll want longer wheel studs when using a slip-on spacer. At ~3/4" or larger you'll want to look into a wheel adapter, which utilizes its own set of wheel studs.

carado1984

as far as the bump stop goes.. you only need to grind it down enough so that when you drop your car to the ground, it doesnt hit the wheel as the suspension travels.. it only takes 30-60 min.. i didnt have a grinder when i had it done so i just had a garage charge me labor.. so whatever labor costs about 60$ an hour... a body shop can do the fender if you dont want to.. some people cut it rather than roll it because theyres worried about paint cracking.. i would think thats the safer way to go.. again.. whatever a body shop charges for labor/hr is what youll pay.. it doesnt take long.. also, if you get a spacer larger than 1/4 in. you might want to put your stock wheels back on for inspection, i was told by a couple of places in PA that it wont pass with one bigger than 1/4.. i dont know what the law is in your state

AdamSS

iTrader: (3)

What are the smallest tires I can put on 18 x 10.5" ?
315-30-18 tires look badass, but they also cost $280 each... (like Nittos). I imagine all around ones are even more pricey...

I was thinking smaller tire will cost me a bit less.... Maybe some 305's ???? Will those fit ?

Any help would be appreciated.... Thanks!

Fulton 1

iTrader: (9)

You can go as small as 265 on a 10.5" wheel based on a few mfg specs I checked, but 275/35/18 might be a smart choice since you could use it with 9.5 or 10.5" wheels, its a fairly popular size so prices tend to be reasonable, and it has the same overall diameter as stock.

AdamSS

iTrader: (3)

Cool - Thanks a lot Fulton1 !!!!

I really wanna buy Z06 Black Motorsports combo: 17x9.5 front and 18x10.5 rear.
Since I have stock 17x9" SS rims/tires, I can use those stock tires on new 17x9.5 fronts

I'd have to purchase 275 or 285/35/18's on rears, which should be less expensive...

carado1984

i run 295/35/18. its the same height as your 275/40/17 front, maybe a few cm taller.. so it wont throw anything off.. on tirerack they have firestone firehawk wide ovals for 190$ and bfg kdw2's for 230 in 295/35.. i would go with those.. ranked against other tires in price comparison, theres no match... if you want to run a 275 on an 18" rear rim.. just get the 18x 9.5 because you can run up to a 285 on it.. if you get the 10.5 and put a 275 on it.. the rims going to stick out wider than the tire.. ive seen it personally on a z06 wheel.. if you want, PM me and ill send you a pic of my set up with the 275/40 17x9.5 front and 295/35 18x10.5 rear

Ferocity02

iTrader: (60)

Carado has got a point. Decide what tire width you want, then get the rim width to match. Or vice versa. I have 285/25/18's all around with 9.5" Z06 wheels, 54mm offset. If you are getting a 9.5" wheel, I'd run a 265-285. If you are getting a 10.5" wheel I'd get 285-315. Anything above won't fit and below would look like ****.

ArcticZ28

iTrader: (14)

Sorry to bring this one back, but which tires would look best and be the most reasonable amount of money for a rear tire on a 10.5" wheel? I thought 315's would be too wide to fit on a 10.5 At any rate, I'm looking to get the tomz wheel z06 combo with 10.5's out back as well but am confused on what size tire to get. I hear a lot of people saying 285 is the highest I should go, but I'm thinking I want a 305 (unless no good tires come in that size or the 295's are that much less expensive). The only two tires I would consider for the back would be BFG KDW2's or GS-D3's.

RpSS4844

iTrader: (12)

The only 305/18 tire I can find is a Nitto drag radial. I also have 10.5 wheels and i am trying to decide on which tire to go with. I beleive 315 would fit the wheel fine and look really great, but to have a the front tires match the rears you are going to have to go with Michelin pilot and i think pirelli makes some and they are extremly expensive. The other otion I found was Nitto NT-01...they are a DOT competition radial and they look great, but I do believe the tread wear is "100" so there not going to last long. I have done countless hours searching tire manufactuers, outlets, retail stores, etc.... this is all I can find. I beleive the best combo...ALLTHING CONSIDERED..(cost, availability, looks, treadlife, modifying to fit, etc) is going to be a 275's up front and 295's out back. Not to mention that most tire manufactuers reccomend 295's for a 10.5 wheel.
IF you dont mind having mix-matched tires or havingg drag radils in the rear, then it opens up many more avenues and combinations. I based my above opinions on having matched tires without going with drag radials. hope this helps. also hope somone else chimes in with the cure-all answer on where to get the tires we are looking for!!!!