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 Post subject: Shudder over 100km/hr
PostPosted: Sat Aug 09, 2008 11:35 pm 
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I just picked up my new ignis and would you believe it there's a nasty shudder coming through the wheel over 100kms an hour. I'm assuming it's in need of a serious wheel alignment, and the car is drifting to the left a little. Is it typical to need to get wheel alignments regularly for the Iggy? I'm covered by a statuary warranty if it's anything more serious.

Any other thoughts or suggestions what I should look for? I'm a little miffed as I'm going to have to restrain my driving until I can get it seen too this week. :x


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Aug 10, 2008 10:39 am 
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Rear wheel balance by the sound of it. Vibrations under 60-80 is usually front balance, above that is rear.

A wheel alignment probably wouldn't hurt, but some aligners do set the car to drift ever so slightly to the left. Apparently a safety thing to stop you drifting into oncoming traffic. ;)

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Aug 10, 2008 10:48 pm 
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Sounds like wheel balance. I had to get mine done once but that's all so far.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Mon Aug 11, 2008 5:35 pm 
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Getting it fixed tomorrow. Guess it's just one of those things..


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Aug 12, 2008 9:15 am 
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With the stick-on wheel weights most rims have now, throwing one off isn't unusual. ;)

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Aug 13, 2008 12:29 pm 
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If you get a wheel balance, I'd still request some stick-on weights. The factory clip-on weights damage the lip of the rim. It's best not to move those things too many times.

Also, I'm of the understanding that the rear wheels cannot be aligned, but I don't think they come out of alignment unless you bend the axle (Keigo managed to do that once).

I've found the front wheels don't stay in alignment for too long, and the car tends to sway left after a while. I'm getting mine checked on the weekend. It feels a bit off after 20,000kms. With the cost of tyres on these things, a wheel alignment at the right time pays for itself quite easily. Of course, how long the wheels stay in alignment depends on your driving style. If you refrain from bashing the car over speed bumps and gutters, torque-steering and three-wheeling - you should go longer between alignments.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Aug 13, 2008 2:33 pm 
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yeah yeah i bend it not once but twice


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Aug 13, 2008 4:35 pm 
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Alignment was done yesterday, seemed to be pretty close, only the toe was out a fraction. Not sure on the wheel balance, the idiot who did it forgot to save the printout. Grumble.

It was a lot better but the ride was a little harsh so I went to check the tyre pressure today. All wheels were on 40psi, except one on 37pi. That seemed far too much for a small car tyre so I dropped it to 35psi all round. Handling and comfort were much improved.

About 10mins after I did this I heard a loud "pop" on the freeway like a tyre going off. I'm assuming this was the wheel moving slightly to reset in the rim? Tyres were cold.

What PSI are you guys running?


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Aug 13, 2008 5:36 pm 
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Recommended is 33F and 31-33 Rear. I stick to that.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Sep 14, 2008 7:08 pm 
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Keigo wrote:
yeah yeah i bend it not once but twice


Yeah, the second time it didn't bend - it shattered.

And I'm running 38PSI all round at the moment. I'm running 195/55/R15 tyres which need to be inflated more than the factory ones. I'm thinking I should probably soften them seeing that there's an 8-month pregnant woman in the passenger seat. But then again, she drives it harder than I do...


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Sep 16, 2008 10:39 pm 
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Sounds like you are already training the young one up! :lol:

Shudder is gone now, though I can't wait to change the rubber over for something a little wider and softer. The cheap replacements the previous owner fitted aren't the grippiest..


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Mon Sep 29, 2008 11:58 pm 
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beyondtool wrote:
I can't wait to change the rubber over for something a little wider and softer.

You can't go much wider than the factory spec. 195mm is the widest you can legally (and safely) fit. However, if you go wider, you need to inflate them harder (due to the profile).

If you want a wider tyre with a softer ride, you'll probably need wider rims. And yes, when it comes to tyres, you can feel every dollar you put into them (you can also feel every dollar scrubbing off around corners).


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Fri Jan 02, 2009 10:27 am 
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Yeah I'm going to get new rims very soon to match new tires, I'm planning on 195mm wide. Anyone have any suggestions on tyres, happy to drive anywhere around Brisbane/Gold Coast for the right price/set.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sat Jan 03, 2009 10:01 am 
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IM running 195 x 50 0n 15 x 6.5 inch cobolt speedy rims . These seems to fill the bill nicely . Tyres are bridgestone G 3 around the $ 140 mark each . Find there very good in the wet , Takes a little time to get them warm ,but they stick like glue when you do. My ones looks as thoe Ill get 60,ooo out of the front and a fair bit more out of the rears. Hope this helps. :)


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Mon Jan 05, 2009 12:23 pm 
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I roll on ContiPremiumContact2. Fantastic in the wet and the dry. They seem do die at about the same rate as the factory Advans, except they've got about two or three times the grip in the wet.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Mon Jan 05, 2009 3:22 pm 
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I think VW have these ContiPremiumContact2 as std fitment on the Polo GTi
Great looking tread

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Jan 06, 2009 9:27 pm 
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Vuka1 wrote:
I think VW have these ContiPremiumContact2 as std fitment on the Polo GTi
Great looking tread


Indeed. Most fancy European manufacturers have that tread factory-fitted to their sport models. There was a list (I think) on http://www.tyres4u.com.au/, but the site appears to be down at the moment.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Jan 07, 2009 2:26 pm 
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Russ how much were they each?

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Thu Jan 08, 2009 12:05 pm 
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Vuka1 wrote:
Russ how much were they each?

About $175, but that's for the ones with a higher speed rating. I think the ones rated to 180kph are a bit cheaper. That's for 195/55/R15. The profile fits the Ignis rims, but it's a bit of a bulge (however it ensures you'll never scratch the rims!). The 185 tyres are about 10 bucks more because they're less common.

Oh, and the site is back up:
http://www.tyres4u.com.au/brandselector_doc-contiprodcpc2_img-cp_show.aspx

According to the brochure, they're Australian OEM Tyres for:
Alfa Romeo: 159
Audi: A6
Dodge: Caliber
Ford: Focus II
Jaguar: XJ6, XJ8
GM: Combo
Peugeot: 207
Renault: Scenic II, Clio III
VW: Golf 5, Passat


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Jan 14, 2009 9:18 am 
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Well I'm trying some Sumitomo 195x50x15 HTR 200 tyres at the moment, 95$ea from Jax Quickfit at Ashmore. Seem to be a very good tyre, not as good as the yokos I had on my old swift but the Ignis seems to stick to the road well with them. Its a soft compound so I'm yet to see how they fair with wear or wet roads.

http://www.tirerack.com/survey/SurveyComments.jsp?additionalComments=y&tireMake=Sumitomo&tireModel=HTR+200&tirePageLocQty=&commentStatus=P


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