camber setting? - Subaru WRX Forum
 
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post #1 of 15 Old 04-01-2012, 02:14 PM Thread Starter
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camber setting?

I just got a new set of tires. The old ones wore out(after a long time) on the inside 3in. of the rear tires. I'm getting it aligned on Friday. What camber setting should I shoot for to make my tires last a little longer and still go good with an aggressive driving style?

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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post #2 of 15 Old 04-01-2012, 02:22 PM
 
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If you have camber plates and the added adjustablity, I found -2.3 F and -1.6 R (zero cross camber) to be a happy place. If you just have the concentric bolts, I would recommend getting max negative up front (probably -1.4ish) and even side to side. THe wear on the inside of the rears could be from toe being out, improper pressure, or the wear might have happened while on the front (prior to a rotation). What kind of skins did you pick up ?

Cullen
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post #3 of 15 Old 04-01-2012, 07:16 PM
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I always used -1.5* camber and 0 toe all the way around on my GD Impreza's.

My name is Ken and I am a HP Junkie.
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post #4 of 15 Old 04-01-2012, 08:17 PM
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A lot of motorsports companies will recommend something along the lines of -2 F and -1 R. I personally run -1.8 and -1.3. Zero toe is always best on a street car.
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post #5 of 15 Old 04-02-2012, 01:15 AM Thread Starter
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Quote:
Originally Posted by wagonracer View Post
If you have camber plates and the added adjustablity, I found -2.3 F and -1.6 R (zero cross camber) to be a happy place. If you just have the concentric bolts, I would recommend getting max negative up front (probably -1.4ish) and even side to side. THe wear on the inside of the rears could be from toe being out, improper pressure, or the wear might have happened while on the front (prior to a rotation). What kind of skins did you pick up ?
http://i135.photobucket.com/albums/q...endown-233.jpg

http://i135.photobucket.com/albums/q...endown-222.jpg

http://i135.photobucket.com/albums/q...endown-213.jpg

The pics show exactly where the wear in the inside of the rear is coming from. Note the daylight between the outer edge of the rear tires thus...the wear on the inside edge of the tires.

My suspension is bone stock. My new "skins" are Dunlop Direzza Sport Z1 Star Spec. 225/45R17

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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post #6 of 15 Old 04-02-2012, 10:28 AM
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Quote:
Originally Posted by Fidrat View Post
http://i135.photobucket.com/albums/q...endown-233.jpg

http://i135.photobucket.com/albums/q...endown-222.jpg

http://i135.photobucket.com/albums/q...endown-213.jpg

The pics show exactly where the wear in the inside of the rear is coming from. Note the daylight between the outer edge of the rear tires thus...the wear on the inside edge of the tires.

My suspension is bone stock. My new "skins" are Dunlop Direzza Sport Z1 Star Spec. 225/45R17


A. You're posting cornering pics.
B. More weight will sit on the inside of the tire.
C. You're posting cornering pics.

You need to post just the tires.
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post #7 of 15 Old 04-02-2012, 12:56 PM Thread Starter
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Quote:
Originally Posted by brfatal View Post


A. You're posting cornering pics.
B. More weight will sit on the inside of the tire.
C. You're posting cornering pics.

You need to post just the tires.
As requested.

http://i135.photobucket.com/albums/q...Picture007.jpg
http://i135.photobucket.com/albums/q...Picture008.jpg
http://i135.photobucket.com/albums/q...Picture006.jpg
http://i135.photobucket.com/albums/q...Picture005.jpg
http://i135.photobucket.com/albums/q...Picture004.jpg

Sorry I can't give better or more pics of them. They are gone.
There is no feathering of the treads showing bad toe. Just flat even wear on the inside edge of the tire. It is on all 4 tires because I rotate well.

I just thought showing what the tires were doing on the car in action would be more helpful.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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post #8 of 15 Old 04-02-2012, 01:07 PM
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You auto-x, don't you?

Paul
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2007 WRX Sold
2007 STi totaled
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post #9 of 15 Old 04-02-2012, 01:14 PM Thread Starter
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Originally Posted by pzr2874 View Post
You auto-x, don't you?
I wish, !Cry!poor me, I live in suv/pickup-truck land Iowa.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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post #10 of 15 Old 04-02-2012, 02:24 PM
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Almost seems like you don't run enough pressure and the tires are rolling.

Then again, it's not happening on the outside. Maybe the outside walls are stronger than the inside and my idea is correct.

Paul
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post #11 of 15 Old 04-02-2012, 06:44 PM
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That's not camber wear. That's toe wear.
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post #12 of 15 Old 04-03-2012, 06:46 AM
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On the inside of every tire? I was thinking tie rods or ball joints taking a dump.

Paul
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2007 STi totaled
2007 Foz XT sold
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Last edited by pzr2874; 04-03-2012 at 07:06 AM. Reason: Thought it was all four. DOH!!
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post #13 of 15 Old 04-03-2012, 07:55 AM
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He's rotating his tires right? Camber wear would be more gradual across the section width. That's confined to the edge of the tire. Toe out will wear out the insides.
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post #14 of 15 Old 04-03-2012, 08:08 AM
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Good point, he did say he was a rotation nazi

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post #15 of 15 Old 04-03-2012, 09:43 AM Thread Starter
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I'm pretty sure it's my driving habits shone in the picture. My snow tires don't show wear like this because I don't drive like that with my snows on. I also have been riding for a long time on my snows this year because I couldn't afford new summer tires last year. Last summer I drove a different car because I didn't have summer tires for the Subie.

Not only am I a rotation Nazi I am also an alignment Nazi. At least once a year or so. Or when I get new tires or before long cross country trips. I run the stock settings including 0deg toe.

Those Kumhos took since spring of 2005-20010 to wear out like that. I thought my pics of me bringing the outside of the rear tires off the ground in a turn would point to the cause. Bad toe would show feathering on the tread blocks. There was none. Just flat even wear on the inside of the tire.

Also, I want to point out the threads started to show about the same time the tread wear bars started to show.

All I wanted was a rear camber setting to offset some of the wear from my funky driving.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.

Last edited by Fidrat; 04-03-2012 at 09:50 AM. Reason: incomplete
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