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Old 05-16-2002, 06:20 PM   #1
ThinkTank
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2006 Scion TC
Mica

Default New RE730s wear inside front tires

feathered inside fronts after 6000 miles. What causes this? How should I rotate? Is this normal? Is it caused by the understeer?
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Old 05-16-2002, 06:24 PM   #2
The Ru
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you talking about the inside of both front tires right? if so, sounds like a lil extra negative camber. did you lower the car at all?

Ian
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Old 05-16-2002, 08:14 PM   #3
SubbyRS
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Check your toe settings as well.....
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Old 05-16-2002, 08:33 PM   #4
spinwax
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Neg Camber will contribute to uneven tire wear if you do not drive aggressively (ie lots of twisty roads, open track etc) ..
Majority of the time it is your Toe.. excessive toe in or out will wear the inside of the tires..
I have had cars that are running 2+ Negative degrees of camber on the street and I rarely saw any uneven tire wear, due to that I drove through the turns extremely hard every day... Now Im not saying the tires did not wear; Im just stating they wore pretty even.. I had the setting set for my driving style..

Now if you are running too much Neg Camber and you drive in straight lines all day to work, you may experience some wear on the inside of your tires...

I always laugh at the guys with the 180hp sport bikes and race tires as wide as a stock Honda tire; and the middle is all worn flat, because they never hit turns, they only ride to work everyday.. .
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Old 05-16-2002, 08:54 PM   #5
portablevcb
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I put this in another thread as well, but, I have the same problem. First with my original tires (16" stock wheels) and now with my BFG KDW's.

Aligned to factory specs and balanced by three different shops. Tire pressures religiously kept at factory specs. 6kMi and the inside edges are feathered severely.

What gives?

Charlie
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Old 05-17-2002, 01:09 AM   #6
ThinkTank
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Mica

Default My alignment specs for reference

Camber -1 f/L&r
" rear -1.6 L/1.8R

Toe .5 in front

" .5 out rear

The car was lowered by Eibach Pro springs for WRX
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Old 05-17-2002, 03:13 PM   #7
japriljr
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I'm not sure what you mean by feathered but I've had mine for about 3k and 2 autox's and no uneven wear. I just rotated them (at 3k) front to back on the same side of the car. Stock alignment, too.
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Old 05-17-2002, 09:04 PM   #8
portablevcb
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I did not notice anything different on my car until I had about 10k miles on the original tires. Then I started hearing a "funny" noise from the front, like what I hear when a tire is out of balance, BUT, no vibrations at all. That was when I first had the alignment checked and tires balanced (and rotated).

This second set of tires, the noise was there when the tires were first put on the car (also after another alignment)

In both cases the alignment shop said it was at spec when they checked it. Two different shops have been used for balancing just as a check. Same results each time.

If it was not for the accelerated wear I would not be concerned since the car still drives well and tracks true.
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Old 05-18-2002, 01:35 AM   #9
Section 8
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Most people would describe "feathering" as the uneven wear of the singular tread blocks. One edge is worn more than the rear, sort of giving the illusion of shingles, or siding on a house.

cheeRS,

Greg
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Old 05-24-2002, 01:28 AM   #10
portablevcb
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This is uneven wear on the inside of the front tires, the inside blocks of tread are worn more than that outside. The pattern of wear is feathered, ie, the front of the tread blocks are worn more than the rear or the tread blocks. I have never seen this on the inside of a tire. I have seen it on the outside of tires on rear wheel drive cars when there is too much toe in.

In this case toe is basically zero.

My thought on this is that something in the AWD system is causing the front tires to rotate slower than the rear. The extra "drag" causes the tires to toe inslightly and scrub. I have been careful to keep tire pressures equal, but, this has still happened.

Is there anything in subbies (this is a WRX) that would cause this or is something else going on??

I have never owned an AWD vehicle before and am curious.
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Old 05-24-2002, 01:47 AM   #11
kenchan
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if your car's lowered youll have to live with it. i get it too a little since its lowered like 2.8inches and the roads out here are mostly straight. i have the camber set at -2degrees..and dont plan on changing it either. but yah, if you drive aggressively in the twisties, i know for a fact that the tires DO wear flat even with a -2 camber.

those RE730 have a tendency to tread separation...so be careful!!!
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Old 05-24-2002, 01:49 AM   #12
ThinkTank
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Default Firestone owns Bridgestone.

Anyone have data to back this up? Mine say made in Japan on them.

"those RE730 have a tendency to tread separation...so be careful!!!"
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Old 05-24-2002, 01:54 AM   #13
sajohnson
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Default Actually, Bridgestone owns Firestone

Where did you hear that RE730's have tread separation problems?
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