Tire size to AutoX on Stock rim
225 or 205 ..?
For V70A only plz

 

I like 205's

 

225 front, 205 rear.

 

any reason why not 225 all around?

 

My setup's for autox:
first = stock RE01
second = 205 Victo's all around
third = 225/50F & 205/50R Victo's
fourth = 225/45F&R Ecsta's

I like the 225/45 all around the best. Why?
1. Seems balanced
2. I get rotation by adjusting pressures and just unweighting the rear with the throttle (weight transfer) and/or trail braking
3. Easier to rotate tires
4. More traction than 205's all around

I don't like:
1. heavier than 205 (but I think I rather have more grip for turning than less weight for acceleration. I know this is a simple explanation. Sprung weight does affect suspension movement, etc. etc. but just trying to keep it simple for comparison sake.)
2. Costs a little bit more.
3. I have to run spacers in the rear for clearance
4. Sort of a sloppy feel. Didn't bother me for autox, but did bother me on a track day.
5. Will rub inner wheel well on front under full lock. This may only happen when making sharp turns (like staging for autox or spinning out and need to go full lock to correct.)

 

Stock Car will rub a bit with 225?
and i am curious what air presssure are you running on those v700

 

You can fit 225's on the stock 6" wide rims


[Modified by Tommy_Gunns, 11:16 PM 2/17/2003]

 

225's fit, but the tires are sort of angled inward from the tread to the rim. Also, 225's on a stock wheel are sloppy. Not excessively, but you can feel it.

For 225's all around, I ran about 35-38psi Front and 38-45 psi rear

 

225 on 6" is not good. The tire is "rolling" since it has bad contact to the ground. Get a 7incher and you can fell a REAL difference.

Stick to 205 on the 6"!

 

If you are new to autocross, run stock road tires till you get used to it. It would be a waste to spend the $$$ on big *** tires or R compounds if you can't truely appreciate them.

I vote 205/50/15 street tires (Falken Azenis), on stock rims till you get better and know what you are doing.

And then 225/45/15 R compounds on light weight 7" wide rims After you are more experienced and can definitely appreciate them.


just my .02


[Modified by 1GreyTeg, 10:09 PM 2/17/2003]

 

In stock class, you must stick to the 15x6 wheel size.

225 width tires is the fast setup.

 

Don't forget, you'll need spacers though with the 225's and stock rims.

 

The staggered 225F/205R is the hot setup with either the Hoosiers or the Kuhmos if you're autocrossing.

With this combo you do <U>not</U> need to run wheel spacers. You may experience a small amount of rubbing up front at full lock, but otherwise rubbing is not an issue. Even with spacers you will still experience some rubbing up front (at full lock), that's why I say you don't need them.

I've got a couple trophies at home to validate this, or you can ask David Fauth or Kevin McCormick who also run that setup too. I think they're National Champions or something like that

 

I agree with not needing spacers when using 205's on the rear.

However, my point was that with 225's on the rear, you need the spacers to prevent rubbing on the lower control arm.

 

i second 1GreyTeg , im running 205 50 , 15 faulken azenis , and there great , with a 2 inch drop in the front , and 1.7 drop in the back , only prob is rain and snow , but then i just throw on my 17" all seasoners