Thanks!
-Mike

 

Assuming your OEM 16" wheels are a 16x6.5 @ 48mm offset:

16x7 @ 33mm offset:
- you'll have 9mm MORE inner clearance from inside of the wheel to the strut housing
- you'll have an extra 21mm EXTENSION from where the currect wheel sits to where the new one will
- outcome: It'll fit without bloated tires (overside tread)

16x8 @ 33mm offset:
- you'll have 4mm LESS inner clearance from the insdie of the wheel to the strut housing
- you'll have an extra 34mm EXTENSION from where the currect wheel sits to where the new one will
- outcome: you'll see some rubbing if the car is lowered or during full suspension compression

- Erik

 

^ I agree with the above. Also, the thread starter should keep in mind that camber settings will play a role in whether the given wheel/tire package will rub during the compression stroke of the suspension.

I suspect that a 16x8/+33mm with a tire <= 24" OD would fit with appropriately aggressive camber settings... Granted, I doubt you would want to run that type of an alignment on the street. But I also doubt that you would be too concerned with a slight rub here and there during street driving.

On track/autox, when the suspension is moving throughout its entire range of travel, rubbing can affect sidewall deflection under load, tread movement, and generate substantially more heat in the tire that is rubbing... not to mention, it can inhibit the suspension movement itself.

Anyway, just things to think about when you are choosing your wheel/tires...

 

Thanks guys!!!
What if I run a it stretched tires, would they be OK w/o camber setting?
Or the other question would be if the wheel just just flush with fender well or will stick out?
I got stock 16x6.5 with +48 offset. May just put it on and measure 34 mm outward.

 

For which wheel? The 7" wide or the 8"?
The 7" you wouldn't really have to run a stretched tire.
The 8" you would want it if the car was moderately lowered from OEM ride height.

The 16x7 @ 33mm offset will be approximately 16mm tucking under the wheel arch.
The 16x8 @ 33mm offset would be just under flush (3mm away) from the wheel arch.

However, DO TAKE into consideration that camber will greatly affect those fitment numbers.

- Erik

 

Thanks Erik!
What tire size would be enough stretch for the rear wheels?
I then want the same stretch amount for the front tires as well; otherwise, it would not look right if the rear tires got stretched and the front's don't.
-Mike

 

Mike, are you planning for a staggered set-up, or the same wheel size on all four corners?

- Erik

 

Hi Erik,
With those wheels, I definitely want to do staggered set-up.
Thanks,
-Mike

 

Mike, it's a toss up with a 16x8 wheel as the OEM 16x6.5 run a 195/55-R16.
First, have a look here: http://tyrestretch.com/ as it shows tires on specific wheel widths and diameters.

If you need the stretch, a 185/55-R15 works.
If you're wanting an aggressive look with more tread, a 205/45-R16 would do.

But please be advise, getting into that area I unfortunately can't tell you what would rub excessively or not.

- Erik