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Old 05-14-2003, 12:04 PM   #1
nick robinson
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Default Weird problem on highway... car drifts around

When im on the highway my car gets pushed aroud a lot. IT feels like its really windy out and the cars getting pushed side to side, except its not windy. I dont think this would be becuase of my bald front tires, is it? What could it be? Its pretty scary getting pushed aroufnd like that... traveling at 70+ mph...
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Old 05-14-2003, 12:59 PM   #2
joubtt
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Bald front tires!!! Uh...do remedy that! I rode in a older car(Amer.) and the rear were bald and it was all over the road at 45; so I took over and to the shop we went. I've also had the pleasure(2x) of the tread coming off a tire as a driver/passenger.

If $$$ tight someone hear may be able to help out. Take care.
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Old 05-14-2003, 01:38 PM   #3
nick robinson
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you think its the tires for sure? Ok . I am just trying to find the set of rims i want and ill buy tires at the same time. should be by this weekend.
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Old 05-14-2003, 01:50 PM   #4
moogoob
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if your tires are bald, its probably been a while since you had an alignment done too. Both will contribute to the drfty feeling.
when i put new tires on, the dude said my alignment was way off.

New tires makes a world of difference. but make sure you get it aligned as well.
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Old 05-14-2003, 02:06 PM   #5
Mike&Michele
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Tires and an alignment should help. I felt the same way with my '00 RS. At speeds above 70 it felt floaty and would wander. Really bothersome in the rain. I picked up Dunlop SP5000 tires, upgraded the suspension to Version 5 struts and 5Zigen springs, adjustable rear sway bar and endlinks and the car feels more stable over 100mph than it did at 70. It has been almost 30K miles since then and the car feels so solid at speed. Only problem is I can't stop buying her toys and she still continues to impress me.
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Old 05-14-2003, 02:41 PM   #6
Brad Pittiful
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whoa dude...your looking for disaster driving that fast on baldies...dont drive it fast at all till you get new tires
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Old 05-14-2003, 03:11 PM   #7
doobie
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If you have aftermarket wheels and the offset is wrong you make get that effect. Probably your tires though.
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Old 05-14-2003, 03:35 PM   #8
mtbhadfield
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Does this happen all the time or only in certain areas/speeds?

Here in Seattle, we have horrible highways that have subtle ruts worn in them from all the trucks/SUVs/etc... If your car doesn't fit in the grooves that have been worn in the pavement, it will constantly "drift" between the ruts. There were certain areas of I-5 that I could barely keep my old S-10 Blazer in the correct lane. I haven't noticed it with the Subaru yet, but I have heard of people noticing this with wheels other than the stock size.

There are some cars that experience this after a tire or wheel change that slightly alters the width of the car.

Clearly if you have bald tires, that's the most likely cause. If your tires look OK and you only notice it on highly traveled highways and not other streets or less traveled highways it might be the road.

Good luck straightening it out,

Brian
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Old 05-14-2003, 04:27 PM   #9
Brad Pittiful
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Quote:
Originally posted by mtbhadfield
Does this happen all the time or only in certain areas/speeds?

Here in Seattle, we have horrible highways that have subtle ruts worn in them from all the trucks/SUVs/etc... If your car doesn't fit in the grooves that have been worn in the pavement, it will constantly "drift" between the ruts. There were certain areas of I-5 that I could barely keep my old S-10 Blazer in the correct lane. I haven't noticed it with the Subaru yet, but I have heard of people noticing this with wheels other than the stock size.

There are some cars that experience this after a tire or wheel change that slightly alters the width of the car.

Clearly if you have bald tires, that's the most likely cause. If your tires look OK and you only notice it on highly traveled highways and not other streets or less traveled highways it might be the road.

Good luck straightening it out,

Brian
im sure its a contributing factor in tire wear
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Old 05-14-2003, 04:57 PM   #10
blackbok
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I am riding on stock rims/tires with PLENTY of tread and I feel this too. I just got it aligned (all 4 wheels) and it still feels "drifty" I want to feel like my car is on rails, solid as a rock, not jumpy. I just sold my set of dream Silver Tarmacs ( 17") w/ S-03's because those pulled me ALL OVER the road.

I'm way more into a solid, smooth STABLE ride than the downfalls that come with bigger rims. I don't auto x or race.

I have:
WRX 20mm rear sway
steering rack bushings (Whiteline)
MRT rear sway endlinks
Tire pressure is F: 36 R: 34

I want better tires, but as I said, I want to lessen this "tracking inconcistancies in the road/ swaying effect"

Any suggestions?
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Old 05-14-2003, 05:43 PM   #11
C-daleRidr
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I get that, but only on highway that's either under construction and grooved or is just finished with a little bit of a groove in it that runs parallel to the direction of the road. Even then, though, it's manageable and, better yet, I can identify the problem and put my mind at ease.

All of this talk about alignments has me thinking that I should get mine done pretty soon since I can't remember the last time it was done.
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Old 05-14-2003, 05:53 PM   #12
Brad Pittiful
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Quote:
Originally posted by C-daleRidr

All of this talk about alignments has me thinking that I should get mine done pretty soon since I can't remember the last time it was done.
not having my owners manual handy...would you know off the top of yer head when an alignment is recomended ...i never had mine aligned...im at 22xxx miles
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Old 05-14-2003, 06:43 PM   #13
C-daleRidr
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Quote:
Originally posted by Brad Pittiful


not having my owners manual handy...would you know off the top of yer head when an alignment is recomended ...i never had mine aligned...im at 22xxx miles
Wow, that is "Pittiful". Get it? I crack myself up!

I actually don't know off the top of my head. I remember that I get it done more often than suggested, but I also find the biggest holes in the worst roads out here on occasion. I almost launched myself out of the front windshield a couple of days ago because I was screwing around and, urm, learned something.

I needed a new front bumper anyway.
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Old 05-16-2003, 03:53 PM   #14
imprezive
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I think it might have something to do with subaru's sucky areodynamics
or the bald tires
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Old 05-16-2003, 04:08 PM   #15
DR EVYL
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I get this too... It wasn't bad with the 16" and RE92's, but since I've switched to 17x7.5" wheels and S-03's, I notice a significant difference.

It pulls in the ruts to either side, and tends to pull to one side (the down side) when I'm on a slightly banked road. Sometimes it feels really bizarre.

I'm pretty sure the car needs an alignment right now.. I'm just curious how much better it will be after the alignment. It is a bit of a bear to drive right now, and I'm going to put Eibachs on it soon... hoping to make the handling improve.
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Old 05-16-2003, 04:17 PM   #16
DDMan
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You want the car to be stable? Get some toe-in both F/R. The downside is your tire wear may go up...

I notice the drifing too, more when I got my 17" SDR's and especially when there is a groove in the road, but its not that bad for me...

I have 1' deg. camber in front and 0 toe all around.
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Old 05-16-2003, 10:32 PM   #17
PARANOID56
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could this be from the car lifting off the road, (not all the way )
What if you added an air damn under the front bumper to force some more air over the car, making it hug the ground better?
Shane
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Old 05-17-2003, 02:57 AM   #18
SIXGUNZ
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I agree with what PARANOID56 says. Too much air under the car. I had a 03 WRX above 65-70 it needed both a wing and a front lip/air dam and new tires (not RE-92,s). The guys at www.autospeed.com did a pretty cool thing. They went out and taped about 100 little pieces of yarn on the car then drve it around on the highway (no wind tunnel I guess) and it shows where all the aerodynamic dead spots are. Not sure of the article name but it was pretty cool . Any way the whole back window area (above the trunk/window etc) Was a dead spot and showed that it was like a low pressure area there. So it would provide lift and not downforce ( they were saying that an effective wing would have to be really high, like the 22B wing, to be effective.) So now you have a brick shaped front end that is pretty high off the ground (which will draw air under the car), low perssure over the trunk(which will lighten the back end), a stiff suspension (which should make the car handle better) and last of all Crappy stock tires (why are they crappy, See below.) The stock tires are the worst tires I have had on any car I have ever owned. They might be V rated but they have WAY too much sidewall flex, almost like the tire is under inflated. I learned this the hard way. Emergency lane change manuever ( some JerkOv cut me off at when I was doing about 70 on the highway) back end rolled way to hard out, and that was all she wrote for that car. If I could figure out how to post a pic of the car I would. So I go out and buy a 03 2.5 RS which is what I have now. And what did I find out on the first ride, That the tires SUCK, I was getting the same wallowing feeling when I passed a truck and on the highway in general, the car would squirm a little, same as with the WRX. At 1019miles I went out and bought BF Goodrich G-force KDWS tires. The car handles MUCH better now no more wallowing when I pass a truck, No more excessive roll when I change lanes. I could have solved these things with aftermarket part(alk/bushings/stiffer sway bar... etc) but I dont want to mod the car, Need it for work. The only thing I would consider buying would be a front spoiler, but I have to drive in the snow and am not sure how that would work out as a snowplow Hope this .02 helps

Nick
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Old 05-20-2003, 06:03 PM   #19
skrikelis
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The bigger the wheel or the wider the tire, the more your car will drift around.
Same thing would happen with my 17s on my Corrado, and went back to stock size.

Also, could it be your suspension?
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