Tires on a 82SC

[ybn533]

Hi guys,

Need your help here.

3 month ago I changes my old tires to Toyo R1R on my 911.

I have problem that my steering wheel is shaking between 65-75 mph.

With the old ones there wasn't any shaking.

I try to calibrate the wheels with 3 shops. still shaking.

I'm thinking about changing the tires to a better ones.

What would you recommend me.

Thanks
Yaron

[Daviboy]

Check ball joints, A arm and torsion bar bushings and get re- alignment done probably nothing to do with tyres

[Joe Bob]

How much weight did they use on the balancing? Have they tried to balance them while ON the car? Have you ruled out issues with your front suspension?

Could be loose balljoints, sway bar, T-bar, shocks etc.....

[Nostril Cheese]

could be water inside the wheel or possibly a broken belt in the tire too.

[Flat6Heaven]

Hi, I put R1Rs on my 82. They are 205 / 225 on 6 & 7 x 15" Fuchs. Have had no problems with balancing. Look into other areas, such as bearings and balljoints, as sometimes changing to tires with more grip unveils hidden problems.

[ybn533]

Thanks guys. I'll check other parts on the car and see what is the problem.

Any simple way to do it?

[Joe Bob]

Put it up on a rack and start wiggling stuff.....spin up the wheels and look for wobbles....

[ybn533]

I will do so. Thanks

[ybn533]

OK.
I got turbo tie rods+ Elephant Racing sway bar bushing and A arm bushings. what do I need more for this job? al these parts a seating in my garage for 2 month. it's about time to make it happen

[slodave]

Did you find the source of the problem or are you just throwing money and parts at it? Really hard to tell you what else to get, without knowing the diagnosis of the problem.

[roblav]

Symptoms like this are typically a bent wheel rim.

[Porchcar guy]

When they were mounted and balanced...did the shop use a road force system ?...This system works much better than the old style balanceing systems

[ybn533]

Hi slodave, it's not called throwing money it called upgrading bought these parts anyway for upgrading the front. thinking of while I'm in there if something else needed for this job and on the way to fix this problem.

Porchcar guy,
They test and balanced and did it with the best system, not an old machine. it got to the balance of 0 grams.

[slodave]

I'm glad you are calling it "upgrading". I just still wonder if you found the problem.

I think I may have given an idea in the wrong tire thread. Since you seem to have shaking through the steering wheel.... With the car stationary, can you turn or move the steering wheel up and down, do you notice any abnormal movement in the steering wheel? There's a bushing that wears out. Maybe it has and the new tires are amplifying the problem.

[ybn533]

I changed the bushings 2 month ago so this is not the problem