wow it was the first time I encountered this FULL shake like an earthquake on my car, above 70mph at HEAVY rain, it was scary as hell, the whole car vibrated, I think it came from my two front wheels

Any clues guys? I have the 22x9.5 all round with Michelin Diamaris, Techart springs

 

Aquaplaining especially on your slicks.

 

Water inside the wheel throwing it off balance.

 

Deetz this is probaly what it was, because you said it was raining. I'll bet Arling will say the same thing as well

 

Next time you clean your car, make sure you dry off the insides of your wheels. It's a known problem with these wheels.

 

Sometimes the Cayennes have "the shakes" at around 65-80 mph . . . .it happens to me often when i have my 22's on . . . .which i had balanced twice and checked for any structural problems.......when i mentioned it to a dealer he said it happens with all Cayenne's and they have no idea why . . . .if it only happened this once it was probably the rain . . .but i've been feeling a wheel shimmy (shake) for a while now . . .hopefully the 05 wont have this problem!!!

BTW . . . .the 05 was sopposed to be done this weekend but i had a few more goodies added while its at the stereo shop......

Custom Backup Camera, which displays in the color CTurbo instument panel screen (not NAV)
2 6.5 inch monitors in the headrests
Zapco 60.1 Amp--powering new Merell (sp) competition front door speakers--existing Focals are moved to back doors....IPOD wire and some very dark window tint! Im pretty sure thats all but i will have pics up either friday or saturday!!!

 

yes I think its the water inside the inner lip, I remember someone with 996 said the same thing, and he felt like it was a flat tire

 

Yep, water inside the inner lip on the HRE sounds like the culprit. A known fault with the rims. Man, it poured this weekend! I was crawling in my car everywhere, no traction at all.

 

I AGREE ! In fact, HRE make such a waring mandatory on certain models of their wheels.

 

Today I experienced the same thing with my 22" HRE's. It started shaking above 70mph, just like Deetz described it.

 

evsmotors: post some photos!!! congrats for being a sponsor!

 

Here are some pics of my CT. Happy to be a sponsor!


Pic would've looked better if I rolled up the windows! DOH!

 

nice choice of wheels and color!! you need to paint the lower piece

 

Peter set me up with the wheels. I don't think I'm going to do too much to the CT, its my work truck w/ 22s! LOL