Wheels for spring ... need some info

[Extremer]

Hi!

Probably goes that serious winter gone and i think again about new wheels for my Buick Park Ave.

Can you tell me what size about 18" with wich ET and tire size can i put on my car without any change on the standard suspension to look really great???

With standard 16" rims when i look from back at the car its really easy to see that the wheels stay close to middle of the car and its lots of space to the edge!

Thanx a lot for help!

[95naSTA]

If you roll the metal lip on the arc of the rear wheel well you can run:

An 8" wide wheel with a +24mm ET and a 245/45/18 tire.

If you do not roll the rear lip, I would suggest not getting anything lower than a +30mm ET on an 8" wheel.

The mininum offset (ET) changes with wheel width.

This is also assuming you aren't running agressive negative camber.

[Extremer]

That means - without any changes on car - 18" wheel diameter with ET30 and tire size 245/45/18 ???

[Gumball]

use this tire size calculator to convert your current size to what you would like, it keeps your speedometer as close as possible

this can be found in our links section up top.
http://www.miata.net/garage/tirecalc.html

[95naSTA]

That means - without any changes on car - 18" wheel diameter with ET30 and tire size 245/45/18 ???

Yes. ET of 30mm max ONLY with a 8" wide rim and 245/45/18 tires will keep your speed correct assuming your car came with 225/60/16 tires.

[Extremer]

thanx a lot guys!

[Extremer]

thanx a lot guys!

but can i use for the buick 5x114,3 rim holes?

[00Beast]

You can use 5X114.3 wheels, but you should get Hub-centric spacers, or just get the right wheel, if you can.

[Extremer]

you should get Hub-centric spacers

or the easy way is to make that 5x114,3 with special "swimming" screw like that

[95naSTA]

you should get Hub-centric spacers

or the easy way is to make that 5x114,3 with special "swimming" screw like that

With hubcentric rings, they would be ideal. But without, you may end up worse than what you started with.

These cars are hub-centric. If the bore on your new wheels is larger than stock (70.3mm) then the wheel isn't centered when you tighten it down. If the wheel isn't centered and you use those wobble bolts, it will be even more off centered due to the weight of the wheel.

However, with hub-centric rings (really cheap anyway) and those wobble bolts, it would be like running a stock wheel.

I'm not saying it won't bolt up and work. I'm just suggesting you go all the way to make it mount as best as you can so you don't run into any vibration or premature lug/wheel bearing issues. I had plenty that when I ran 114.3 wheels with no rings/wobble bolts.

[Extremer]

i understand ... but when i use a scpecial platic orings to make the new rims centered ist work without problems right?

somthing like that