Shaking over 70 mph, soooo confused

[BYprodriver]

Let your fingers do the walking & call the shop first & ask if they will do a " dual plane backside dynamic balance to 1 gram tolerance with stickon weights" if they can't or won't keep searching.

[97 Boxster]

Originally Posted by BYprodriver

Let your fingers do the walking & call the shop first & ask if they will do a " dual plane backside dynamic balance to 1 gram tolerance with stickon weights" if they can't or won't keep searching.

Thanks byprodriver. I will call around. Is this type of setup familiar to shops?

[anti-bling]

Tread is good and no bulge. I can't believe how many others have this problem!!! It sucks . I'm going to try a more well known tire place and let you all know.

[BYprodriver]

Originally Posted by 97 Boxster

Thanks byprodriver. I will call around. Is this type of setup familiar to shops?

With the current trend of hiring cheap inexperienced labor maybe not, but should be part of balancing 101. Dynamic balancing measures lateral or side to side balance as well as static or up & down balance & is indicated by having weights on inner & outer edge of the wheel. Backside means all weights are positioned behind the "face" of the wheel.

[jacabean]

check your suspension , something might be worn out.

[chaudanova]

Perhaps try a Road force balance on a Hunter GSP9700...

[anti-bling]

Originally Posted by jacabean

check your suspension , something might be worn out.

It's possible, but I wouldn't know which component to check...any advice on what part of the suspension would cause my problem?

[ed.w]

Originally Posted by anti-bling

It's possible, but I wouldn't know which component to check...any advice on what part of the suspension would cause my problem?

it happened to me before when i drove at 90km/hr+... i tried over 230km/hrs and felt like i'm driving a boat on a lake.

I had this bad experience after i installed a replica wheels.
you can try to ask the shop to do wheel/tyre alignment with a tools that looks exactly u put on your car with 5 screws on. (don't use the center cap hole for wheel/tyre alignment)

If this problem keeps coming out, try to change your wheel and test again.

in my case, i finally install an original 18" wheel from 987.

[97 Boxster]

Just set up a road force balance with my local shop.

[jaykay]

Originally Posted by BYprodriver

Let your fingers do the walking & call the shop first & ask if they will do a " dual plane backside dynamic balance to 1 gram tolerance with stickon weights" if they can't or won't keep searching.

man was there a time when I needed these words ready to roll of my tongue!