PlatES300

iTrader: (1)

the fronts would require a very big spacer...i'm talking in excess of 25mm. Why not just get different wheels altogether? Get a set that fits w/o having to use spacers.

Lazy

iTrader: (2)

I will probably get different ones after I see how these fit with the spacer. If I like it I will probably sell them and get another set with the offset I need haha. I asked one of the local tire shops right here and he said they didnt have 205/35 or 205/40. So would it be better to do 215/40 in the front and maybe 225/40 rear? would that still work?

Choas

Ok I have 8" wide rims in the front 40mm offset with a 5mm spacer and its pretty close to being flush. So I'm not really sure where a 25mm spacer would be needed but idk. I think with a 8.5" rim a 5mm or 3mm spacer would be fine at an offset of 43mm. As far as tires you really might want to take a look at the miata tire calculator http://www.miata.net/garage/tirecalc.html. Now the stock tire is 205/65/15 so replacing that with lets say a 215/35/18 tire would make your speedo 6.1% to fast. So if it says your going 60 your actually going 56.3 and it will get worse as you go faster. Lets take a 205/40/18 it will make your speedo 4.1% to fast. So if it says your going 60 your actually going 57.6 again getting worse as you go faster. Now with 225/40/18 which I run myself your speedo is 1.6% to fast. So when it says I'm going 60 I'm actually going 59. As far as running two different size tires lets say 215/40/18 in front and 225/40/18 in the rear you would be putting a tire in front that is about a quarter inch shorter than the rear and still throwing your speedo off. Now I don't know what the big deal about stretched tires but I like an accurate speedo and think with rims that big and wide its gonna look good no matter what.

PlatES300

iTrader: (1)

this all boils down to what are you goals? how low is your car going to be when daily driven? With a moderate drop (springs), an 8 wide rim w/ a +40 offset will look decent. If you're like me, and run the car as low as coilovers will go, the same +40 offset will sit "sunken in." Running those size tires, you will throw off your speedo, but I already accepted that before hand so its not too big an issue to me. I'm not too sure on the OP view on this so I will let him decide.

Lazy

iTrader: (2)

Car is sitting as low as Ksport coilovers would let me drop it. Not sure on the exact drop height but its pretty low. As for the speedo being a bit faster I do not really mind at all since I still need to go get mines fixed haha.. -.- and I think it would be better if it says I am going faster so I would actually be driving slower and not get a speeding ticket Choas you are running 225/40/18 all around on 18x8 & 18x9?

Choas

I have 18x8 in the front and 18x8.5 in the rear with 225/40/18 all around. Your gonna have fun getting an 18x9 to fit because you need to offset to be perfect.

PlatES300

iTrader: (1)

wrd...to get a 9 to fit, you need offsets b/t +21 and +24 and run about 2 to 3 degrees of negative camber. Just run 8.5 all around.

Lazy

iTrader: (2)

Wheels are already paid for.. I will probably use them for a bit but if it takes too much work then ill just re sell them. Thanks for the help guys I will post some pictures when I have time.