kj217

i have the same noise but,, speed ranges where it whines are based on which gear my Tip is on.

Graufuchs

Had same issue, turned out to be tires...tires werent bad but Ive noticed on the auds in the pasti and seemingly the porsche after a certain amount of miles I get a lot of road noise from certain brands of tires.

gvcap10

Same symptoms and it was my tires!!

Tippy

I'm not a sound engineer but I can say that the shape of the cabin acts like a huge megaphone for noises. Due to the driveline being all in the rear, the beginning point is small where most sounds will come from and widens into your eardrum intensifying vibrations and sounds from my experience.

kj217

can you guys describe the symptoms you were having?

Liceman

Delayed update:

It was the tires.

The rears were cupped. My indy found that there was too much negative camber and toe on the rears from a previous set up.
An alignment and new set of Sumitomo's are all done now.

I appreciate all the input. Figured I'd give this thread some closure.
Thanks

Divot

Thanks for the update. Did you change all four, or just the rear?

911mike99

I bet it is tires

Zookie

Try that First, if not then it might be the Wheels Bearings

Liceman

replaced all 4 w sumitomos. had Dunlops previously and i didnt want to mix.

Pac996

Shhhhhhh

OK I'm with you but most think it's the gearing or bearings so we have 10:1 odds. I'm betting $100, how much are you betting?

You're splitting? You're only going to break even.

John3804

I had a similar experience. Replaced rear tires (w/ matching Bridgestones) and didnt solve it. Had wheels straightened and balanced. No major issue but part of the process.

Ended up being a front wheel bearing. Part's are cheap, labor not so much...

Do the easy stuff, buy my money is on the bearing.

kj217

i still have this symptom even with a new set of tires,,
the noise comes in different speed ranges,, different range for each tip gear,,
can someone enlighten me please?

Pac996

It's road noise a lot of the time. All surfaces make different sounds. Also all tires make different sounds. Alignment can even cause the tires to rise to noise. Some tires when worn down wheels even become unbalanced. Porsche might back me up on this but to check for any problems take it out on the hwy up to 170 and see if you don't like what you hear at speed or after slowing. My personal favorite is the autobahn. Number 81 Wuerzburg to Weinsbronn please. One very scenic route headed south. Did I mention wide sweeping turns of pure bliss valley scenery?

No matter what I'm making more money on the bet now. Can I collect on the bet now

One of the funny ones is concrete slab hwy. Heated they sometime make more of a rough ride. Figuring its always the same you'ld think the car is screwed up.

Please remember to check bearings by feeling the wheels at the hubs. It's saves a lot of money and diagnostic wondering.

kj217

last night, i took the car for one-hour ride,, i took her up to 130MPH,, no whine or noise what so ever,,
i also felt the wheels and found that the fronts was much hotter than the rears,,