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My C63S coupe is slow

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Old 12-04-2016, 02:02 PM
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2017 C63S Coupe
My C63S coupe is slow

Man I just feel the car isn't as fast as I first experienced with it at the dealership. The car has tremendous torque but is rear wheel drive so I feel like the car has trouble putting all those torque fully to the ground, the rear wheels always spins.
Is there anyways I could make the traction better? Changing tires maybe? Do some ECU tuning?
Old 12-04-2016, 02:26 PM
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what tires are you currently running? I did a few modifications and currently have 530rwhp & 630rwtq, i dont have trouble with traction above 50mph+.
Old 12-04-2016, 02:38 PM
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Originally Posted by C63S_Coupe_Jay
Man I just feel the car isn't as fast as I first experienced with it at the dealership. The car has tremendous torque but is rear wheel drive so I feel like the car has trouble putting all those torque fully to the ground, the rear wheels always spins.
Is there anyways I could make the traction better? Changing tires maybe? Do some ECU tuning?

If you're spinning the tires all the time then it isn't a power problem.


Sounds like you might want to get stickier rubber.
Old 12-04-2016, 03:22 PM
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2015 Range Rover Sport Autobiography; 2019 AMG E63S; 2021 Range Rover HSE Westminister
If you are still on the stock tires and temps are under 50F the CA will spin like crazy. The rubber is summer only.
Old 12-04-2016, 07:29 PM
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AMG C63s
Originally Posted by C63S_Coupe_Jay
Man I just feel the car isn't as fast as I first experienced with it at the dealership. The car has tremendous torque but is rear wheel drive so I feel like the car has trouble putting all those torque fully to the ground, the rear wheels always spins.
Is there anyways I could make the traction better? Changing tires maybe? Do some ECU tuning?
I've switched my 285s to 295s in the rear.

Slight increase but the car flys at the right temp.

Running Michelin PSS
Old 12-04-2016, 07:52 PM
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Tires need to up to temp, ambient temps need to be good, etc.

Also, brand new tires have to get some wear before they hook up in the intended way.

All of which we have no info on.

A car with 500 hp does need to be eased into power in low gears..
Old 12-04-2016, 08:49 PM
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Originally Posted by C63S_Coupe_Jay
Man I just feel the car isn't as fast as I first experienced with it at the dealership. The car has tremendous torque but is rear wheel drive so I feel like the car has trouble putting all those torque fully to the ground, the rear wheels always spins.
Is there anyways I could make the traction better? Changing tires maybe? Do some ECU tuning?
Sounds to me like the car you test drove had different tyres to your delivered vehicle.

They are factory fitted with different types not all the same, FYI you may want to go back and check what that car had fitted, otherwise just upgrade as most people do
Old 12-05-2016, 09:32 PM
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You are just used to the car now, traction issues notwithstanding. Happens to everyone. Get some new rubber, your butt will be puckering again in no time.
Old 12-08-2016, 10:42 AM
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Mercedes Benz C43 AMG
Originally Posted by C63S_Coupe_Jay
Man I just feel the car isn't as fast as I first experienced with it at the dealership. The car has tremendous torque but is rear wheel drive so I feel like the car has trouble putting all those torque fully to the ground, the rear wheels always spins.
Is there anyways I could make the traction better? Changing tires maybe? Do some ECU tuning?
http://shop.amrperformance.com/produ...e-ship-in-ecu/

This will fix the "not fast" feeling of the car lol the ECU software upgrade makes this car fly
Old 12-08-2016, 11:26 AM
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we can help out with the slow feeling for ya!

We have anything from ecu tunes to turbo upgrades to make her really fly!

ECU TUNE





eurocharged c63s dyno tune


The tune is currently on sale, let me know if we can be of any help!
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Old 12-08-2016, 12:50 PM
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Originally Posted by loungn14
we can help out with the slow feeling for ya!
Impressive. OP is complaining about traction and you guys offer an ECU tune that will help with it!
Old 12-09-2016, 12:14 AM
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2017 c63s
Originally Posted by Gr8
Impressive. OP is complaining about traction and you guys offer an ECU tune that will help with it!
Genius.

I say you should sell it and buy a GTR. Mad fast yo
Old 12-09-2016, 12:30 AM
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You should go take a driving class and learn how to use all the power you have. This is an honest suggestion I am not trying to be a douche. If you're not used to it you need to learn how to drive the car. Hence the reason my wife hasn't driven my car yet.. one of the reasons for buying this car is losing the back end. If you don't enjoy that then the car isn't for you. Sell it and get an AWD or buy bigger wheels and 305's
Old 12-09-2016, 01:18 AM
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2017 C43 Sedan
I guess it's all perspective... I've had my C43 for a month and haven't fully opened it up
(trying to do a semi easy break in at least) and coming from my Infinit G37 it feels extremely fast. Never driven a C63 but that will change this summer at the AMG driving academy.

I will say I am becomming more and more unimpressed with the stock Continental run flats (feels too firm and too slidy/squishy at the same time), maybe try a different tire?

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