put fuchs on, now have a question..

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P. - 28 Jun 2007 06:46 GMT

I replaced my phone dials with a set of 15" x7/8 fuchs last weekend (kept
the same tires) and now above 40mph I get a ton of tire/road noise, the
drone is so bad I have to turn the radio way up so it doesn't drive me nuts.
Also, at 70+ mph I get a lot of vibration and shaking in the steering wheel.
Both of these problems didn't exist before I changed rims. I'm hoping that
the tires are just improperly balanced or something so I don't have to live
with this. Any ideas? Car is a 1986 944 n/a

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Guru - 28 Jun 2007 17:34 GMT

I can't recall, but did you check to see if the offset on the Fuchs is the
same as your old wheels?

Did your tire shop take care to install the tires on the same side as they
were mounted before? If not, that would definitely cause a lot of road
noise.

And...of course, basic balancing must be on spec...especially with Fuchs as
they are forged, and don't damp any road shock transmitted thru the tires as
some "softer" cast wheels could. (Very small point anyway)

Hope this helps...

>I replaced my phone dials with a set of 15" x7/8 fuchs last weekend (kept
>the same tires) and now above 40mph I get a ton of tire/road noise, the
[quoted text clipped - 3 lines]
>hoping that the tires are just improperly balanced or something so I don't
>have to live with this. Any ideas? Car is a 1986 944 n/a

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P. - 29 Jun 2007 01:11 GMT

> Did your tire shop take care to install the tires on the same side as they
> were mounted before? If not, that would definitely cause a lot of road
> noise.

I believe this is it. They rotated them because there was some cupping.
Will the noise go away as they start to wear more? They also lost a weight
which caused the pulsing.

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Guru - 29 Jun 2007 16:10 GMT

Honestly....very hard to say if the tires will "wear even". You and your
tire shop will be the first to know. Radial tires do not like to be worn in
turning in one direction and reversed. Of course, if the tire shop mounted
them "inside out", it can be made to work.

After you've had some experience with this set up, let us know how things
work out.

If you keep having trouble...and you think it's "wheel" oriented, contact
Wheel Enhancement. They are experts in Porsche wheel/tire combinations.
Have all your wheel and tire sizes, brands, etc on hand before you call
them.

BTW: All weights on Fuchs wheels "should" be taped on the inside of the
wheel.

>> Did your tire shop take care to install the tires on the same side as
>> they were mounted before? If not, that would definitely cause a lot of
[quoted text clipped - 3 lines]
> Will the noise go away as they start to wear more? They also lost a
> weight which caused the pulsing.

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someone@somewhere.net - 30 Jun 2007 13:00 GMT

I doubt that further tire wear will smooth out cupping.

The tires may get quieter, or noisier.

What brand of tires are they? New?

I'd take the car to a different shop and have them look it over. This
could include having the tires re-balanced. Yeah, $70 down the tubes but
that's not too bad for a Porsche project.

>>Did your tire shop take care to install the tires on the same side as they
>>were mounted before? If not, that would definitely cause a lot of road
[quoted text clipped - 3 lines]
> Will the noise go away as they start to wear more? They also lost a weight
> which caused the pulsing.

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