Kens-E55

Well I go with 19x10 lightweight rims along with the EVO rotors and put 295/30/19 PS2's on the rear and almost everytime I get on it, the rear-end feels like its a "squirrel" going all over the lane. It's noticeably worse on comfort mode. I can't even hold 3rd gear thru the qtr w/out the back-end starting to "oscilate" and I have to let off the gas.
On "Sport 2" mode it seems to be a little better under control, but still a "mess" compared to what I had.

Has anyone ever solved this issue with 100% certainty? Will going to a 285 solve it? Any help is appreciated!

FlyByNight

Easy stuff... the 295s are the cause, 285s fix the problem... sell your tires on ebay...

https://mbworld.org/forums/showthrea...ght=295+wiggle



Loren

jangy

Has anyone tried 295/19s on a car with an LSD and or the toe link supports (like RENNs)?

I have always been a believer that the problem is due to the extra TRACTION the tires give and not rubbing. As I have already blurted, I just don't see how you can have rubbing that causes rear steer of a car that does not do damage. Just a thought.

Too bad they are not 18" 295s or I'd buy them from you.

FlyByNight

The tires rub on both inside and outside walls, so there's no cure short of a widebody kit.

And they rub mildly... enough to trip traction control on and off, thus the wiggle. When you take the tires off, you'll see the scuff marks in the upper areas of the wheel well... and on the airmatic shock itself.

Its very much like trying to run down a hallway that is exactly 2 feet wide as fast as you can. Your shoulders will hit just barely and change the course of all your momentum into the other side of the wall and vice versa... and it will slow you down as well...

it definitely has nothing to do with a centimeter of extra traction. Make this car open wheel and throw 345s on it, and it would be one happy camper... in a straight line...



Loren

dsc

I have Kleemann LSD and had the PS2s 295/30/19. BAD Waggle/Wiggle/Shimmy and Giggle no matter what height I had the car! I went to 285/35 just a few days ago and DAMN what a difference! Smooth, firm, awesome ride. Renntech told me the toe arm would not help. It was designed for launching and my wiggle would happen at any speed.

I will be putting on eBay my tires if anyone is interested in them They are Michelin PS2s with 4000 miles on them 255/35/19 fronts and 295/30/19 N1 rear.

FlyByNight

Isn't it a huge relief to be rid of the wiggle? You get accustomed to the spastic unpredictable scary nature of the thing... fearing how it might make you crash... then you switch back to "normal" tires that fit... and its so weird to just accelerate in a straight line! Heaven!



Loren

dsc

Life is unpredictable enough, that wiggle took major fun out of the car. When I did race some people it was also embasseing to have them see my tail go back and forth as I passed them. They probably thought I was flirting with them?!?!?!

The car is F---ing AWESOME again! No wiggle rules!

Kens-E55

Thanks for the update guys - off to the Tire store I go....
gonna go with your recommendation of 285's on the rear.

BTW - Did you stick w/the PS'2 or go another make?

Torquey55

I am hating that wiggle thing too in a bad way. It can get pretty hairy at times under WOT. I have referred to Loren's thread about this on a couple of occasions and discussed it with jangy via PM. The wiggle thing is a pain in the *** and I will definitely not be getting 295 PS2's again. It seems like the 285 is the way to go for sure.

jangy

I must somehow be mistaking what you guys are feeling with what I have felt with Getrag trannys and diffs. Could it be a total diameter issue? I'm also running 295/30s, but on 18 inch rims and I have never felt the wiggle, much less anything as intense as you all describe.

The reason I am so hell bent on it not being due to rubbing is that there is a great deal of energy (momentum) in that wheel. If it really hits the wall hard enough to trigger the sensor, it would have to do damage.

Could the rubbing actually be a side effect of the wiggle, which is caused by ESP kicking on and off due to confusion by the taller tires?

Seems odd, but all the more reason for me not to compromise and get 19s.

Has anyone had the wiggle with 18s? Also, does the ESP light flash when it happens?

urotrash

Yes Ken, Loren is correct, a 285 tire will fix the prob. The 295 tire rubs the plastic panel on the inside wheel well but only under hard acceleration. I have a 10.5" Kinesis wheels on mine and going to a 285 fixed the problem..

jangy

What size diameter on the Kinesis? Also, you mind telling me what offset on that 10.5? Did it only rub on the inside? was there room for a slightly more aggressive offset to make it not rub at all? lastly, How do you like the Kinesis? They are local to me and another option to the HREs.

urotrash

They are (f)19x9 & (r)19x10.5
I think the rears are a 22mm offset They only rubbed on the inside.
Now i wanted the widest wheel possible (which is over kill) and i think 10.5 is it. I got this by using a 4" outer and a 6.5" inner, if you dont mind going with a 10" wheel by using a 6" inner then you wont have a problem at all!
As far as Kinesis is concerned, I cant say enough about them not just the wheels but the people too. they Take alot of pride, they do alot of testing on the wheels & the quality is second to none. I have to admit that there might be other wheels out there that could look better but its to the point now that every car/race car i have/had they have done a set of wheels for it, I dont even consider the rest.
I am actually selling the car on autotrader.com if you want to check out the wheels do a search of the car from the 92629 zip code its the one for $67K

Rafal

I think you are right. I get a bit of it with 285/30/19 PS2 but never with 275/35/18 PS2. Less ESP interference, but the rear end tends to noticeably shift traction from left to right and back again in a slow wave action under full throttle. With the 275's or 265's, the rear wheels just spin together!

stevebez

Rafal what offset are your Stylle IV's? and what rim width ??

FlyByNight

That would be very unusual, as its merely a centimeter... and the rub marks in the wheel well tell the tale more than anything. With my 285s, I still get a swaying motion every so often, but its completely controllable and nothing that sends shivers down your spin like the mad dance with the 295s. Cory told me that is often because of the 40/60 split with the LSD, and totally normal.

Besides, it gets worse when you have weight in the back, which rules out traction as the cause. When I was on the freeway with 2 people... larger people... in the rear, and I punched it, we changed an entire lane and were all white in the face after a wiggle 7.0 on the richter scale. That is not just traction I'm guessing.

The higher you send those 295s up in the wheel well, the more they rub... and the more exaggerated the effect. And while most of the time the ESP light does not come on, I could make it come on with the wiggle every once in a while... just for a moment while the mad wiggle occurs. Other times it is silent...



Loren

chiromikey

just thinking out loud...couldn't you guys rule in/out if the wiggle problem was esp related by performing some accelleration runs in dyno mode? if esp is completely eliminated by switching dyno mode "on" and you do or don't get the wiggle, then you will know for sure and will at least be one step closer to a solution.

WayneE

Is it possible to just hammer/clearance the areas where the tires rub?

Torquey55

I am 100% in agreement with Loren on this wiggle thing. It's almost to the point of being discussed ad nauseum here. You swapped out 295 for 285 and the problem was basically cured. End of discussion as far as I am concerned.

Rafal

F 8.5 ET35 255/35/19, R 9.5 ET38 285/30/19

stevebez

Mmmm ... I got same rubber on
AMG Style IV multi piece's with front offset ET30 & rear ET31 ...
B6 603 1360 &
B6 603 1361

I thot these offsets I got were standard for an E class?

http://www.mercedes-amg.com/assets/p...ccessories.pdf

But I have not had them fitted yet !!!! So cannot be 100% sure.

Rafal

Don't! Your 285 on ET31 will be 4mm past the rolled fender on full compression. I have only 3mm gap with ET38.
It will shred the rear tyres on the sharp points where the rear bumper joins with the fender.
These wheels are specified with 245 and 275 tyres.

FlyByNight

damn you for being so smart!

I would, but I no longer have the 295s...

I think this subject is moot, though... even if its not the ESP, it definitely rubs. When you take your tire off, you see the marks on the inside front wheel well and on the shocks themselves... not something you should hammer too much I'm guessing.



Loren

jangy

I wouldn't hammer any of the body on my E. I still haven't had the issue and am getting the Quaffe soon, so I hope not to. It has been discussed enough.

stevebez

I am confused ...

Tirerack suggest the same offset as AMG do ...

http://www.tirerack.com/servlet/Call...filterSpecial=

Agreed the tyre is 285 instead of the 275 recommendation - but surely it would still fit No ?

So is it the tyre width that mucks it up or the offset ?