What's the real reason why C63 tires wear so fast? - Page 8

Jul 16, 2013 | 12:20 PM

#176

zcct04

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Joined: Feb 2007

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From: Houston - Clear Lake

C63 coupe, Z3M Roadster garage queen

Quote:

Originally Posted by Diabolis

EDIT: 0.25 or 0.5 minutes would be such a miniscule amount . . .

True, but you've crossed up the units. We're talking 0.25 or 0.5 DEGREES which, as you correctly noted, is a range of 15 to 30 minutes.

We gotta put a stop to math after midnight!

Jul 16, 2013 | 05:21 PM

#177

Diabolis

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Joined: Jan 2013

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From: The Great White North

W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars

Quote:

Originally Posted by zcct04

True, but you've crossed up the units. We're talking 0.25 or 0.5 DEGREES which, as you correctly noted, is a range of 15 to 30 minutes.

We gotta put a stop to math after midnight!

Hi zcct04,

You and I are saying exactly the same thing - I was referring to roadtalonsi's statement "its actually in minutes.... so .25 degrees would be 25/60ths of a degree". If it has a decimal point it is indeed in degrees, but 0.25 is NOT 25/60ths of a degree (which would be 25') - it is 25/100ths of a degree, or 15'. If it's in [degrees and] minutes it would be given as [x*] xx'.

I'll second the no math after midnight rule!

Cheers,
Doug

Last edited by Diabolis; Jul 16, 2013 at 06:06 PM. Reason: no drinking before doing math either

Jul 16, 2013 | 05:56 PM

#178

rage2

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Joined: Dec 2002

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From: Montana/Alberta

C63 BS, GLA45

Quote:

Originally Posted by mrl0n3ly714

so with that to say, adjust the rear toe in minimum .28 to .30 will help on the thread wear ?

the more toe in (longer thread wear) , the more oversteer...?

The following comments are specific to the pre-facelift C63 AMG, and from my experience in playing with alignment settings the last year I owned my C63 AMG. I'm not 100% sure of the alignment differences with the facelifted C63, not have I owned one (other than the Black Series), so I can't comment on that. My 2010 C63 Sedan had the P30 suspension package as well as the factory LSD.

When you dial the rear toe to the factory recommended minimum (or even down to .15), you will have more stability braking in a straight line. There will be less lift throttle or trail braking oversteer (ie lifting throttle or braking into a turn). Your tirewear will improve significantly. The "downside" is that it's easier to get oversteer when you're aggressive on the throttle with ESP off, but it will be more progressive of a slide. ESP sport will catch it fine and pull throttle well before you get into any trouble. Theoretically, at higher speeds, there will be less straight line stability, but I never had the chance to run the car over 200km/h for long periods of time with this setting.

I personally settled for .25 setting for the summer which suited my driving style, and ran .15 in the winter which was magic in terms of freezing weather straight line stability.

Last edited by rage2; Jul 16, 2013 at 05:59 PM.

Jul 16, 2013 | 09:42 PM

#179

roadtalontsi

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From: Texas

10 C six trizzle

sorry im used to using mercedes recommended equipment that always reads in minutes. just trying to clarify things as thats even more misleading if someone is reading '25 and thinking there are 100 units in a degree or didnt know the difference. yes you are correct .25 vs '15 lol. this threads gotten way hardcore technical im somewhat impressed. Keep in mind ride height also determines the specs using the romess gauge. Ill be checking my cars alignment later this week, ill see if the black series specs differ from regular c63. obviously they will some what from sedan to coupe etc...

Jul 17, 2013 | 12:34 AM

#180

rage2

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From: Montana/Alberta

C63 BS, GLA45

The black series calls for .15 out back. It has wider tires though.

Oct 1, 2013 | 05:15 PM

#181

cyrekzz

Junior Member

Joined: Nov 2009

Posts: 69

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From: Woodbury, Minnesota

2001 highlander

Looking at getting a 2011 in the spring and have read this thread. I'm thinking of also adjusting the toe - probably to .30 and getting 265's. I read that with the toe adjusted this way, it will produce oversteer easier, but evenly too, rather than whipping back etc. So my question is, how is this in wetter conditions? Being that it slides easier on dry, i'm sort of assuming it would even slide easier out in the wet?
Is this a dangerous setting... i guess it's in spec so maybe not as bad, but with the wider tires maybe?
looking at the PSS's

Oct 1, 2013 | 05:27 PM

#182

rage2

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From: Montana/Alberta

C63 BS, GLA45

Don't turn off ESP and you won't slide (unless you do something really stupid). Simple.

It's only as dangerous as you make it out to be. Drive with ESP off, floor it everywhere without knowing how to handle it, and sure it'll be dangerous.

Oct 1, 2013 | 07:25 PM

#183

cyrekzz

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Joined: Nov 2009

Posts: 69

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From: Woodbury, Minnesota

2001 highlander

So it sounds like then the setting of the toe would be fine even with the slightly wider tires. Thanks... also i decided to go with a 2011 so it would be out of that headbolt thing