CL55 AMG, CL65 AMG, CL63 AMG (C215, C216) 2000 - 2014 (Two Generations)

Traction issues... What's size rear tire will fit?

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Old Dec 3, 2012 | 01:08 PM
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Traction issues... What's size rear tire will fit?

I've got a W216 CL600 with a Speedriven tune and my car has serious traction problems off the line. What size rim/tire will fit in the rear without any modification to the fenders? I have the kleeman lowering module but haven't installed it yet, so I need to know if lowering the car will effect the size rim/tire I can run also.

Are there any other options to help gain more traction?
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Old Dec 3, 2012 | 02:54 PM
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305's on a 10.5" wheel with the right offset.

R.K.
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Old Dec 6, 2012 | 09:42 AM
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Originally Posted by radride
305's on a 10.5" wheel with the right offset.

R.K.
Does anyone have experience running that width tire? How much does it help with the traction, I'd imagine most V-12's have this problem. What tires are some of you running on the street that has better traction other than drag tires?

Any other tips or mods to get off the line without roasting the tires?
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Old Dec 6, 2012 | 10:09 AM
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if you need controllable traction - you need lsd.

one wheel burnouts and worn rear brakes are all you get with the plebian open diff you have on your car.
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Old Dec 6, 2012 | 10:16 AM
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Originally Posted by alx
if you need controllable traction - you need lsd.

one wheel burnouts and worn rear brakes are all you get with the plebian open diff you have on your car.
I know renntech makes a LSD diff are there any other options? Does quafie have a unit that works on my car?

Last edited by Bromaguire; Dec 6, 2012 at 10:22 AM.
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Old Dec 6, 2012 | 10:16 AM
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Originally Posted by Bromaguire
Does anyone have experience running that width tire? How much does it help with the traction, I'd imagine most V-12's have this problem. What tires are some of you running on the street that has better traction other than drag tires?

Any other tips or mods to get off the line without roasting the tires?

I run a 305 on the bac of my CL65 so I have experience. The difference in traction from the factory 275 is definitely significant. I run Perelli P-Zero's.

To get off the line without roasting the tires will be difficult to say the least. The V12 makes so much torque down low in the rpm range that no matter what size street tire you put on, it will easily roast them. You have to learn to modulate the accelerator pedal. Old school traction control.

R.K.

Last edited by radride; Dec 6, 2012 at 10:29 AM.
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Old Dec 6, 2012 | 06:56 PM
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I'm quite new to this Limited Slip Differential stuff, so please help me understand what it is. Up till now, from what I have gathered, only one of the wheel is powered by the engine? and by installing a lsd both rear wheels will get power at the same time?
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Old Dec 6, 2012 | 07:35 PM
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Quaife has a unit that works and has been installed by a few forum members Do a search and you will find the info.

Bigger tires alone won't help traction on these cars with the immense torque they are able to supply.

A limited slip differential will help
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Old Dec 6, 2012 | 09:30 PM
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Mine lays down 11's. (both wheels leave rubber) Wonder if the previous owner added a lsd?
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Old Dec 6, 2012 | 09:32 PM
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Originally Posted by nidyanazo
Mine lays down 11's. (both wheels leave rubber) Wonder if the previous owner added a lsd?

So does my CL65 but I know its got the stock diff.

R.K.
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Old Dec 6, 2012 | 10:53 PM
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Originally Posted by awiner
Quaife has a unit that works and has been installed by a few forum members Do a search and you will find the info.

Bigger tires alone won't help traction on these cars with the immense torque they are able to supply.

A limited slip differential will help
I have noticed some talk about the quaife diff and I've had success with one in my M3 but will the quaife fit my W216 CL? I've only seen it mentioned in regards to the W215. I've also found that MHP seems to sell the same one Renntech sells but for a bit less.
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Old Dec 7, 2012 | 08:33 AM
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Originally Posted by nidyanazo
Mine lays down 11's. (both wheels leave rubber) Wonder if the previous owner added a lsd?
the asc is squeezing the spinning wheel brake to transfer torque to the other wheel. so the net result is both wheels spinning, but in the process a lot of energy is lost and one wheel always spins more than the other which makes the car veer and not maintain direction well.
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Old Dec 7, 2012 | 08:37 AM
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Originally Posted by Bromaguire
I have noticed some talk about the quaife diff and I've had success with one in my M3 but will the quaife fit my W216 CL? I've only seen it mentioned in regards to the W215. I've also found that MHP seems to sell the same one Renntech sells but for a bit less.
According to quaife's website they only have one for the W215.
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