So we all know even the stock c63 is a tire smoker. I have a tune on mine and while u definitely feel the power u lose a lot of traction like A LOT! Spin, spin, spin, thats all my car does. Coming from AWD big turbo cars this is very frustrating for me. I have the stock 285 rear PSS tires.

My question for you guys is will 305s help at all? or wider wheels. Because as it stands right now, the car is all over the road when i punch it in a straight line. It doesn't give me the sensation an almost 600 hp car should. I Know for a fact there are ways to get RWD cars to hook. Tires are the limiting factor but if pilot super sports won't hook what will? drag radials? Is that my only option?

I have had the rare and amazing opportunity to ride shotgun In a McLaren P1 in a half mile event and the launch in that car felt just as hard as any AWD high Hp car should. The whole half mile i was pinned to the seat and never felt it lose any traction. ( I am aware a c63 isn't even close to being in that league) The P1 is light has a massive wing and the downforce and state of the art tech to put power down. Ever since then I have wanted to have a machine that could bring back part of that sensation. However after my tune my car No longer launches it spins. It no longer pulls unless I'm at high gears and high revs which is when the turbos and power start to fall off making the experience lackluster. Another example of a killjoy after my tune....

I raced the new 2018 5.0 mustang. Even though he got the jump.... they only have 460 hp 420 tq stock... it was a dead even pull and all i could feel was my tires spinning and see my traction light killing all my power in 3rd gear. That doesn't exactly make you feel good when u just paid what these things cost. Stock my car was a riot but it put the power down a lot better! Thats all i want but with my tune.

Anyways enough of my rambles any input is welcome. I am hoping someone has a tuned car and can share what they did to improve traction and slipping. Without getting rid of the tune thanks fellas!

 

A couple of the tuned guys have mentioned switching over the the Michelin Pilot 4S in either 295 or 305 with great results, almost a night and day difference. That is my plan once I get the car tuned.

 

I have also had some very powerful and extremely fast AWD cars. I must admit that the C63 can be frustrating at times but can also be very fun when you want to throw it around. In my AWD EVO in order to initiate a slide the speeds would become dangerous. In the C63 you can have fun at low speeds.

Going wider tyres on the c63 will no doubt increase the grip but Im concerned the fun factor will suffer. The car won't be as playful. Even in the new facelift cars AMG has chosen to keep the tyres the same.

So its either fun or grip it seems.

 

 

Agreed I put 295 ps4s and it was a huge improvement The other thing you have to think about is tire temperature. If you try to give it power when the tires are cold you're going nowhere Drive around a bit and let them warm up first. Having said that traction is the main reason I'm trading up to an e63s

 

Pilot Super Sports are too old, you need the Pilot Sport 4S.

Also, try lowering your tire pressures to 33 PSI or lower in the rear.

 

Too bad we can't have it all. I remember feeling that I was missing something with my Quattro RS4. I once raced some kid in a CTS-V from a stoplight. I was half way down the block before his tires quit spinning. I let off the gas and when he caught up I rolled down the window and said "I wish that I could burn my tires like that." His reply was that he wished he could stop them from spinning. I could drift it when I had the original Pirelli tires, and I do admit that the instant response of the naturally aspirated engine helped break the rubber. However, in time I grew bored of the glued-to-the-pavement nature of the AWD. My initial impulse was to tune this C63s coupe, but now after reading these kinds of posts I am not so sure. I don't plan to race it.

 

 

Moving to a Porsche mate? lol

 

Contact 6 or MP4S have better grip than MPSS. Though I'm not sure if they do the Contis at 305 width and my preferred tyre is the MP4S.Conti's dont wear as well as Michellins either.

If you're going wider on the rear, look at going wider on the front tyres to ensure the wider rears dont upset the balance. I would hate to see your tuned beast becoming an understeering mess with not enough grip in the front and too much in the rear.

Lastly, speak to your tuner to see if he can tweak the tune to have the torque come through slightly less aggressively (at the expense of some HP) but at least you wont be burning your tyres out as much.

Failing that, unfortunately the best thing you can do after changing tyres is not floor it and instead modulate the throttle a lot more. Even on a race start, you can lift your foot off the throttle once you release the brake and then progressively stick your foot back down part way again. If an s variant has 700nm, your tune could be running anything up and even in the 800nm region which is way over what is useable for the first 30 odd miles per hour on a launch. Let us know whether you sort the issue out!

 

I found moving to the Continental ContiSport 6's 295 width tyres helped enormously. Since then the new MPSS have been released, which apparently give more steering feel, but less grip. Don't forget to notify your insurers, if you change the width of the tyres though.

 

I want a 991.2

 

How is the ride of the Porsche compared to the C63s? It felt a bit harsh to me.

 

Thanks for all the advice fellas. I think I'm going to try p4s tires 305s when i get my new wheels, I will let u all know how it works out. The idea of a new 911 is tempting to me as well but i would want the turbo s and that price tag is rough considering the kind of cars you can have in that price range... also the sound of this car is better imo.

 

I was just test driving 2 997.2 's , they felt about the same suspension wise . In comfort mode the Turbo S was actually a bit softer but switch to performance mode and it was a beast compared to the C63S . The 997.2 Turbo S does 0-60 in 3.2 seconds and 1/4 in 10.7 and the suspension was equally as stiff . I just couldn't get over how old the Porsche's are interior wise .....I thought I was stepping back into the early 2000's and I was driving a 2012 Turbo S . You think the sound system in the C63 is bad ,the Porsche is brutal . It totally turned me off of the car when I compared my C63S and the 911 Turbo S . The sound system was such a huge disappointment for the price . I assume most overlook this because it's a Porsche but seriously Porsche needs a wake up call and bring them int the 2018's .

 

 

 

I drove the C63s Coupe to Houston and back and it was the most comfortable ride I can remember. I kind of like that. I was wanting a versatile ride and I think I've found it.

 

Do you normally drive a go-kart ?

Haha

 

Yea, seriously? haha

Comfort mode dials things down a bit, but 90% of my driving is done with comfort suspension (with everything else in Race). Sport and Sport+ suspension is way too stiff for most roads, and with a tune, any roads that aren't perfect just exacerbates traction issues with the suspension in Sport+. It's better having more suspension travel to soak up the road bumps when your tires are screaming for traction.

The only time I switch to Sport+ suspension is a few miles of very windy roads with elevation changes near my house. Classic Austin hill country roads. Those roads are nice and smooth and I can feel much better steering turn-in (it's much more immediate) with the dynamic engine mounts and firmer suspension dialed all the way up.

The Porsche just has incredible damping - the suspension is so dialed in, it always feels hooked up and compliant even on not so great condition roads. It's a completely different feel that inspires confidence to push harder, whereas in the C63S, you're always a bit nervous about the rear end out sliding or roasting tires.

 

Exactly why im switching to new e63s. Suspension still too stiff but grips for days ..

 

I had a 2007 RS4 for 11 years, and a 2001 A6 biturbo Sport model with an APR stage 1 tune before that. My Porsche experience is limited to being a passenger. I guess my experience is limited. I think it has to do more with the seat and not the suspension for me. Funny tho, but I used to describe the handling of the RS4 as like driving a go-kart. Incredible traction and response.

For now I am happy with being able to break the rear tires when I want, and the car still has plenty of control.

 

You can't compare the feel riding in the passenger seat vs the driver seat.

In the driver seat, you are in control and you can stabilize yourself with the steering wheel. In the passenger seat, you have no control and nothing to grab onto other than some handle up-top. So as a passenger, the ride will always feel "less smooth" IMO.

 

Given I've got a 997.1 Turbo and a tuned C63S, I definitely have to agree that the 911 has much better range of suspension characteristic changes when playing with PASM. In 'comfort', the 911 is much nicer over speed bumps, potholes and suspension joints than the C63. Turn PASM to 'sport' and it's much stiffer, but somehow still more compliant on jarring hits than C63's Race mode.

I don't mind the C63's tail happiness however. I wanted a brutal, hooligan RWD V8, and that's what I got. If I want planted acceleration, I've got the 911 and the Tesla.

 

Gee, really? I wasn't comparing the ride between the passenger's seat and the driver's seat. I was making a comment about the ride of certain car irrespective of the feel and handling, going in a straight line and how it felt going over bumps and cracks in the pavement. I will maintain that the feel of a car going over a bump should feel about the same on both sides of the car. I was asking a fellow if he thought he might be giving up some ride comfort by trading in for a Porsche, and I think he answered my question.