Sasnuke

Depends on the rim width and offset. I think the 275 will most likely rub.
Are you going square setup or staggered?

sdqqbb

Thank you for the repley, wheels siez front20*9 offset 35, rear 20*10 offset 40.

Sasnuke

The 245 on the front will likely rub when the wheel is at full lock on the inner fender...but not a big deal, as how often and fast do you drive at full lock.
The rear with the 275 will likely be ok as the usual concern is rubbing on the fender if the vehicle is lowered, but you want keep the vehicle at stock height, so you should be ok.
Just be mindful if you load the vehicle up with passengers and cargo.
If you decide to lower the vehicle after, you may run into issues.
To give yourself that little extra clearance on the rear, you could go with a 265...and finding out the tire Tread Width may help too.
From manufacturer to manufacturer the Tread Width will vary for the same size tire. Tirerack.com is a good place to see tire Specs.

As per my signature below, I also have 20's on RSR Downs, with a square setup 235/30/20 +35 with 8.5 width. The front rub at full lock...no issues in the rear.

sdqqbb

Thank your for your time to type all this. This really helpful. You are the GOAT. what are the pons and cons of runing a square set up?

dieseldogs

I just put a 18" square setup on. I have only driven about 30 miles (mostly rural roads) on them but I can tell the steering is much quicker. It feels like there is less under-steer. Part of that may just be the wheel and tire combo is much lighter than stock, 6# in front 10# in rear. Aside from that just being able to do a proper rotation should help prolong tire life. That is kind of a big deal to me on a daily driver especially since no matter how good my alignment is the fronts really wear the inside of the tire.

I guess the cons would be the staggered setup looks slightly better. Mainly from the rear

EMOgs3

Sasnuke

The biggest Pro is being able to rotate the tires to maximize tire life.
Depending on the specs and tires, handling could also be improved, but i'm not tracking the car, so as a Daily Driver (with flashes of spirited driving lol) it handles fine for me.
The biggest Con is the staggered fitment looks a lot better with the right wheels.

E46CT

You wouldn't know if your car "understeered" or "oversteered" unless you exceed adhesion limits aka speeding around a corner skidding. And on a slammed/stanced car, I don't really see that as a reality.

A square setup may result in more neutral handling, however at the cost of reduced steering feel/feedback in the front as you are now adding more weight/mass vs the stock smaller size.

RU4Rhyl

Sasnuke

Short answer...no

RU4Rhyl

Just for information and knowledge...is it the offset that won't make it fit? or is it because the front is too wide?

Sasnuke

Mainly the offset. Others have run 9.5 on the front...I wouldn't say it's common, but others have done it.
Consider a 19X8.5 +35 is almost flush with the fender on the front, so if you went to a 19X9.5 +22, that would basically move the other edge of the wheel outwards an inch...so now it can hit the fender, or fender liner at the very least.
On the rear a 19X9.5 +38 is almost flush once again...so going to a +22 with move it a little more than half an inch outwards...combine that with the tire and it will rub on the fender.

RU4Rhyl

thanks it's finally making sense to me...hahaha...now would having semi stretched tires do a difference?

Sasnuke

On the front you would need more than semi stretched...you would need to make up a difference of 2 inches...1 inch on the outside and one inch on the inside.
So overall the tire would be 2 inches narrower than the rim. Personally I wouldn't recommend it, especially if the roads around you are not the greatest...that's just a recipe for a blowout.
Even the back the tire would be over an inch narrower that the rim...once again, my personal opinion, it's not worth the risk.

jmull3r

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