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Is this dangerous?

 
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kike924  



Joined: 30 Nov 2003
Posts: 180
Location: Buenos Aires - Argentina

PostPosted: Sun Nov 13, 2005 3:19 am    Post subject: Is this dangerous? Reply with quote

I have deformed my front tires blocking them in hard braking, the Porsche Festival is next week and I donīt want to buy new tires before that (they have only 8000 kms in them)

Is it possible to rotate them so that the front ones are in the rear axle and the rear in the front?
Maybe steering shimmy will be less and I can manage some fast laps

I think doing this I can compete in the circuit xcross and change my tires after the festival

Do you think this is dangerous?
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morghen  



Joined: 21 Jan 2005
Posts: 9102
Location: Romania

PostPosted: Sun Nov 13, 2005 4:25 am    Post subject: Reply with quote

i dont think changing them on the back would help you...the car might oversteer too much then.....now bad could you have deformed them ? i have shitty tires too but i dont race it with these tires.
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Neil924  



Joined: 18 Mar 2003
Posts: 4225
Location: Canada

PostPosted: Sun Nov 13, 2005 5:38 am    Post subject: Reply with quote

If your tires are damaged, then get new tires. If you had a plane and a wing was about to fall off, would you say "I just bought that!, screw it! We're using that wing for another year!"?

If you crash and someone finds out you had damaged tires, look out! I'd whoop you good if you struck me during an event with poor tires.

And rotating the tires moves the problem to the rear, it doesn't solve anything.
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kike924  



Joined: 30 Nov 2003
Posts: 180
Location: Buenos Aires - Argentina

PostPosted: Sun Nov 13, 2005 6:46 am    Post subject: Reply with quote

OK I will change them next week,
should I change the 4 or just the 2 front ones?
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Tigger937  



Joined: 11 Apr 2004
Posts: 919
Location: PCA Milwaukee Region

PostPosted: Sun Nov 13, 2005 8:31 am    Post subject: Re: Is this dangerous? Reply with quote

kike924 wrote:
Maybe steering shimmy will be less and I can manage some fast laps


Are you sure the rotors aren't warped? Does the shimmy get significantly worse with light braking? If so, turn the rotors. Also, what about wheel balance?
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Paul  



Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin

PostPosted: Sun Nov 13, 2005 1:36 pm    Post subject: Reply with quote

Is having them shaved a possibility?
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kike924  



Joined: 30 Nov 2003
Posts: 180
Location: Buenos Aires - Argentina

PostPosted: Sun Nov 13, 2005 11:54 pm    Post subject: Reply with quote

thanks for your help, I donīt know where to go to try shaving the tires, I will go to the continental shop and seek for a solution or juest to buy new tires
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Lizard  



Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada

PostPosted: Mon Nov 14, 2005 4:40 pm    Post subject: Reply with quote

put them on the rear and light em up that should take enough off haha
but most of these guys were talking about the rotors not the tyres.
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Mike924  



Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK

PostPosted: Mon Nov 14, 2005 6:07 pm    Post subject: Reply with quote

If you can feel a shimmy in the steering put the front wheels to the rear.

If the shimmy's still there after that have a good look at your rotors.

Have fun at the Porsche Festival and then buy two new tyres. Put these on the front, where they'll do most good and returm the rears to where they were to start with.

In the meantime, don't do too much hard driving until you're confident in the feel of the car and you should be OK.
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Ozzie  



Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia

PostPosted: Mon Nov 14, 2005 6:20 pm    Post subject: Reply with quote

The N/A has solid front rotors which buckle after they have had to much wear or been machined to thin.
Gives a mongrel of a shimmy at speed and under braking.
Replacement only including front wheel bearings.
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