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04-25-2012, 09:34 AM | #1 |
Drives: 2007 Yaris Join Date: Jul 2010
Location: New Mexico
Posts: 3
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Embarassing Newbie question
I don't even know how to search this topic: 2007 hatchback, 90k, new standard Pirelli's. Old tires were crap Dunlops. Problem is that we have long stretches of cut pavement on the interstate loop around town due to snow/ice issues. When I hit these stretches, the rear of the car "hunts". It's quite noticeable, and is less than confidence inspiring. Goes away under acceleration. I had the suspension checked, and the tires rebalanced and rotated. What's up with this? Smooth pavement is no problem, marked improvement in traction and noise control with the new tires. Did not have this issue with the old cardboard Dunlops.
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04-25-2012, 09:49 AM | #2 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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I'm assuming you mean the cuts run in the direction of travel? We have some similar areas on the highways near me, and I've had some strange wandering behavior as well at times. I just chalked it up to a mismatch between the tread and roadway. Could you post up a pic of your tread, or just the model so we could get a look at it?
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04-25-2012, 10:05 AM | #3 |
Only Happy When it Rains
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sometimes tires will just do that. It just means the tread somehow matches the grooves too much. Just slow down.
If it goes away under acceleration that means when you give the rear more traction the tires bite down and stick. If it really bothers you, you could throw a hundred pounds or so in the back, or get upgraded springs/shocks to hold the wheels and tires down more firmly.
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Colin Chapman disciple |
04-25-2012, 11:34 AM | #4 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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^ or add a rear sway bar, or a trailing arm brace for stability back there.
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
04-25-2012, 07:14 PM | #5 |
Drives: Scion FRS RS2, ‘21 Crosstrek Join Date: Oct 2008
Location: Chatham, Ontario, Canada
Posts: 1,729
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Know anyone who sells such equipment?
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TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots. |
04-25-2012, 08:46 PM | #6 |
Drives: '12 Yaris LE Lagoon Blue Mica Join Date: Feb 2012
Location: York,Pa
Posts: 344
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So why are you embarassed?
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04-25-2012, 10:06 PM | #7 |
Drives: 2007 Yaris Join Date: Jul 2010
Location: New Mexico
Posts: 3
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I'm embarrassed because I bought a used Toyota that fishtails on cut pavement, spent $500 on tires to make it better, and my Dad is an engineer for General Motors.
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04-26-2012, 03:20 AM | #8 |
Drives: '12 Yaris LE Lagoon Blue Mica Join Date: Feb 2012
Location: York,Pa
Posts: 344
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Could be worse,Your father could be employeed by Chrysler.
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04-27-2012, 01:05 AM | #9 |
School'er of hard knocks
Drives: Silver Yaris 4dr. HB Join Date: Oct 2008
Location: Sudbury, On
Posts: 556
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It's the design of the suspension, particularly the geometry.
Took me three engineers, and lots of head-scratching, to figure that one out. |
04-28-2012, 09:30 AM | #10 |
Drives: 2007 Yaris Join Date: Jul 2010
Location: New Mexico
Posts: 3
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Anti-sway it is, thank guys.
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05-09-2012, 07:21 PM | #11 |
Drives: 2007 Yaris Join Date: Jan 2012
Location: Laval, Canada
Posts: 74
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i LOLed
you guys don't need braces engineers or sway bars it's all about the tire tread circular thread tends to follow the lines on the pavement it's as simple as that |
05-09-2012, 09:26 PM | #12 |
Super Moderator
Drives: 2014 White VITZ Join Date: May 2007
Location: Huntington Bch, CA
Posts: 4,938
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Indeed, I found that tread design on the Yaris makes a huge difference when it comes to highway wander on both cut and smooth surfaces!
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02-10-2013, 07:32 PM | #13 |
Drives: 2008 Hatch Red Join Date: Apr 2012
Location: San Diego, CA
Posts: 66
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Sorry to dig up an old thread but I was hoping for a recommendation for a good Yaris tire?
Thanks. |
02-10-2013, 08:13 PM | #14 |
Nic
Drives: 2008 3-Door Liftback Manual Join Date: Jan 2012
Location: Alabama
Posts: 51
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02-12-2013, 11:17 PM | #15 |
Only Happy When it Rains
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what are you looking for? Performance? Gas mileage? long life? That will decide which way to go.
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Colin Chapman disciple |
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