CarHopper

^ If you get H&R springs it will soften the ride while maintaining performance. Not a very expensive thing to do but it will lower the car obviously.

AMG3.2

What tires are you on?

P31 does not have uprated suspension like a P30. In other words, HR springs will most likely make his ride a bit stiffer if anything.

Amg63-

It's different in Canada. Here we get the APX package. Do a quick search on that and you will see that here they are using stiffer springs than the non p31 model. I think it's possibly p30 springs combined with 2012+ struts. Not exactly sure how the sport suspension setup is done here, never figured that out exactly.

If we can find out exactly what the APX pkg is doing with the suspension then he could be right about H&R springs giving a softer ride than stock setup.

Also, I'm running Michelin PSS on stock sizes at 40-42 psi cold. Rides very harsh.

AMG3.2

Well I'll be damned. You're right.

Learn something new everyday.

Amg63-

Yup, I would of been a lot happier with the p31 US pkg because that one would have given us the softer springs, just sacrificing a bit of handling for that which would be fine.

Now I'm still curious what can be done. I don't know if APX pkg is only stiffer on springs or also has the struts tuned for that as well.

Looking to see how to soften the ride up

CarHopper

Anddddd we are back at H&R springs haha. See AMG3.2

60% of the time I know what I am talking about 100% of the time on an off day. Or something. Maybe?

Oh I don't know.

BEETS

You welcome and good catch, should have mentioned stock for stock, the M3 was a smoother, less harsh ride, but I had EDC (Electronic Dampening Control) so that had a few different ride settings to help make a better ride from the factory.

Well, this is a no brainer option for me!

Amg63-

Ok but now there's another issue

Stock this car is already sitting low enough that sometimes I have issues getting around certain places.

So this means I can only soften the ride at the cost of making it lower? No way to keep it at stock height?

Wouldn't putting those springs on stock struts also wear them faster as the stock struts are not tuned to go with the H&R?

Also, I always thought the lower the car the more stiff it needs to be to pull that off...

Any other ideas?

hachiroku

welcome to the AMG family. the M156 is one of the greatest if not the greatest N/A V8's on the planet.

every dollar spent on fuel will be worth it i assure you.

talkinghamster

welcome aboard, greetings from the great white north!!

AMG3.2

Correct.

The only other thing you could do is keep the car at stock height and go with a softer non-P30, non APX, spring. This'll keep the car at stock height but provide a softer ride.

Additionally, you could install some super soft all season tires to comfy up the ride.

All of this is sacrilege on a C63, but it's your ride!

Yes, this is true. I'm already noticing fatigue on my rear OE struts after about 7k miles.

The car's rear end bounces a lot more then I would like when going over dips on the freeway.

A coilover may be the route to go.

CarHopper

^ People run H&R springs for 10's of thousands of miles no problem.

AMG63- You could try to score a stateside non-pp suspension. That or coilovers that will allow you to adjust ride height and comfort. Or sit on a pillow?

AMG3.2

Oh, I'm sure they do.

They're really isn't a severe problem with them, per se. They aren't going to blow up or quit working, but to say that an OE strut that's meant to operate at longer range of motion, which now suddenly cannot do that, is going to last 10's of thousands of miles without degrading would simply be a false statement.

They'll start to feel a bit looser and sloppier over time, which can be hard to notice over 10k miles.

It also depends how much you've lowered your car with the springs. I installed 5mm spring pads which looked perfect to me, but some install 13mm some install 17mm which would yield in additional travel and thus slowing down the rate of wear.

Just noting what I have noticed. I'm sure others might have different experiences, but it's pretty common for OE dampers to degrade when they're paired with lowering springs. I just didn't think it would happen this quickly.

Amg63-

I also wonder how much of an improvement in ride quality there is between an APX facelift c63 vs the p31 pkg without PP suspension.

For all I know going through all the trouble to replace my suspension with that may only improve ride quality by 10%. Not sure if it's worth it.

If only someone who drove both can give us a review

*sigh*

itzjonjon69

thanks broskis! Between the C63 and M3 it's a completely different league, stock the M3 is slow and only feels fast in the high RPM range, whereas the C63 is fast as **** anywhere but it runs out of breath eventually. Whereas the supercharged M3 holy mother of god it just pulls and pulls and when shift at 8400 it drops the car right in the powerband of the blower. The only problem is you can only enjoy the car when the roads are empty are you're in a rural area. The car becomes a highway/runway car, which is a shame because you can never enjoy its full potential on the street.

So far the biggest difference is the transmission the 08-11 tranny was the downfall of the C63 and why i got rid of mine, so far with the MCT it's almost as quick as my DCT between gear shifts which i'm all about!