Quaifing the C63

Author
Discussion

JimmyR1

104 posts

72 months

Tuesday 30th July 2013
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Any difference in sound from the rear ie any whine or hum??

ecain63

Original Poster:

9,792 posts

114 months

Tuesday 30th July 2013
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Nope, silent so far. Just feels more focussed and not so loose on the road.

ecain63

Original Poster:

9,792 posts

114 months

Friday 2nd August 2013
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A bit more of an update now its had a few days of use.

Totally silent and no whine like you get with the M-diff in the M5 / M3. Or with Pork or GTR's.

Car doesn't squirm at all now when pulling away with full WOT. Its dead straight and feels fully planted. Can't feel any power loss either so TC mustn't be grafting too much now.

Havnt seen the traction light on tight corners or under hard acceleration since fitted. Not had TC fully off yet to test the break point. Will do this weekend.

Car feels a lot more planted on the road and no longer tramlines or hunts the grooves in the road. Generally feels less 'floaty' at speed.

Oddly, it doesnt feel as loose / doesnt feel as rattly with regard to suspension or steering. Before hand it had that C63-esque disconnection between the driver and the steering / wheels that we all notice. Now it feels very much firmly connected. Could this be to do with the LSD?

Not sure if its quicker as ive not got a V-box to test it with but im pretty sure off the mark its better at getting away cleanly. Thus probably a few 10ths quicker.

Doesnt suffer unwanted lateral movement when hard accelerating across lanes / over the white lines. It used to squirm a little at the rear when crossing lanes under WOT but now it doesnt. Feels safer and more confident.

Generally feels better.

Its not a huge difference made to the car but, not like getting into a Ferrari after driving a Lada. The little bits here and there do add to up to be something quite noticeable. For those who don't have an LSD I'd say its something to consider due to it feeling a better, more capable car, but its not life changing given the standard car is still pretty good. For those with an OEM diff it'd be interesting to do a comparison test. Pre-FL PP+ with OEM LSD vs Pre FL-PP+ with Quiafe anyone?

gaz1234

5,233 posts

158 months

Friday 2nd August 2013
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electric steering?

ecain63

Original Poster:

9,792 posts

114 months

Friday 2nd August 2013
quotequote all
gaz1234 said:
electric steering?
Eh??? Explain. Ive had a pint.
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gaz1234

5,233 posts

158 months

Saturday 3rd August 2013
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does it have the new steering like the new cars have e.g. porsche 911.

ecain63

Original Poster:

9,792 posts

114 months

Saturday 3rd August 2013
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No idea to be honest. Its a 2010 pre facelift so im not sure.

HotJambalaya

1,471 posts

119 months

Monday 5th August 2013
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Interesting all round, not sure I'd notice the difference since I so rarely get to open it up properly.

Given what you know now, and your experience with it, would you go through all the time and expense again?

ecain63

Original Poster:

9,792 posts

114 months

Monday 5th August 2013
quotequote all
If money was a factor then maybe not. Its not worth being skint for. However, the differences although small do add up to something noticeable and beneficial so yeah, id do it again. Even at £1600 its still a cheaper and better mod than speccing the oem diff.

Aquanaut

132 posts

126 months

Tuesday 6th August 2013
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Thanks for the write up ecain63. If i keep my car after merc agility deal, which i intend to, its defo something i would now consider.

PhantomAMG

997 posts

144 months

Tuesday 6th August 2013
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Personal opinion is the diff is well worth it. Didn't have one in my last c63 and do in this one. Granted you only really notice the difference when pushing on, but in these cars that is all to easy to do! Especially with the extra power I am running..

GlynnsportRacing

277 posts

169 months

Tuesday 6th August 2013
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PhantomAMG said:
Personal opinion is the diff is well worth it. Didn't have one in my last c63 and do in this one. Granted you only really notice the difference when pushing on, but in these cars that is all to easy to do! Especially with the extra power I am running..
Out of interest, is it a Factory fitted or after market diff PhantomAMG?

PhantomAMG

997 posts

144 months

Tuesday 6th August 2013
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GlynnsportRacing said:
Out of interest, is it a Factory fitted or after market diff PhantomAMG?
Factory fit....on a 2012 p31

newtonmetre

16 posts

99 months

Thursday 15th August 2013
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I imagine the noticeable difference to be the transition to oversteer, in that without diff the car will use its traction control to emulate a diff (as merc claim on a non LSD c63) before it slides, however in reality you feel the sometimes jerky transition to oversteer. However if the diff is locking I would imagine the transition to be farm smoother to oversteer and then return to traction more smooth progressive also.

Would you agree ecain.

For info I have the same model as yours without LSD and am debating the upgrade.

Ay further update on how you are finding it?


ecain63

Original Poster:

9,792 posts

114 months

Thursday 15th August 2013
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Yup, I fully agree with that. It is more progressive on the slide and generally feels more planted. In a way the car feels heavier, but not in a sluggish or negative way, more that it feels solid and predictable. As a result the car I'm sure is a tad quicker point to point and I feel much more able to chuck it round the bends without worrying about the traction control reigning me in prematurely.

Slarty Bartfast

244 posts

149 months

Tuesday 17th December 2013
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Well after a track day on Saturday I have just ordered a LSD from Birds... On the road I haven't missed the lack of the LSD, but you really miss it on track!



Edited by Slarty Bartfast on Tuesday 17th December 17:04

Bradders901

217 posts

70 months

Tuesday 17th December 2013
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Can you provide more details on your experience - i.e what did you notice that made your mind up?

cheers

ecain63

Original Poster:

9,792 posts

114 months

Tuesday 17th December 2013
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Im finding the quaife to be a huge help currently with the weather being so damp. Glad i did it!

MSLPERF

26 posts

63 months

Tuesday 17th December 2013
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Hi

There was a Group buy a few weeks ago on another forum for the Quaife Diffs

All the guys who got it done were Very happy

Acid

Bradders901

217 posts

70 months

Wednesday 18th December 2013
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I have the factory diff - I was just interested in opinions on the differences - for me it is better traction.