Marco_montreal

Hi Guys
i thaught this might be interesting for you
http://youtube.com/watch?v=WIaSzJyb08A

jparch

AMG can make any video they like, fact is i will never give up my 55 for the current 63 no matter what.....

bfnnrgn

If you pay attention to the end though you'll hear that the E55 had a lower ET and a higher trap speed. The E55 was quicker, even though by the video you would think the E63 won.

02S430

i agree totally

AMG_55

drove a cls63 yesterday
its a much better car than an e55 (havent driven a cls55)

the steering and feedback is a billion times better

i was on the limit w/ the esp flashing throughout the whole turn (didnt want to turn it off b/c its my cousins car) after 3 corners, very confidence inspiring, unlike the 05 e55

Dogshine

In the video, the 63 DID WIN... because the 55 driver lost traction.

What they say is that on average, the 55 has a lower time and higher speed. Thats not what you saw in the video, but when the amg rep says the 55 is on average faster than the 63 over the 1/4 mile, thats probably what he means.

Whoopsy

from what I gathered in the video, E55 would do 12.7, 12.8 at 110 and E63 would do 12.8, 12.9 at 109 consistantly, so basically both cars are just as fast and comes down to driver and launch condition. Some would argue the 55 is 0.1 second and 1 mph faster than 63 but it seems that the lower toque output from the 63 makes it easier to launch.

MHK

That seems logical from both an engineering stanbpoint and a marketing standpoint. You would think that when MB designed the 63 engine for the CLS specifically, the were thoughtful to design it to keep the performance within a pindrop of the CLS55. Given the CLS55 is only one year old, that would make for very dissapointed owners if the 63 posted significant gains.

BMW uses the same philosiphy when they develop new engines for their cars, given the accelarated rate at which they put out new engines, they are masters at it.

AMGLAB

The 7 speed transmission was quoted numerous times as creating gains of .5 seconds in the quarter mile for other engines. If that is trure, all the more reason to believe the 6.3 engine is less quicker than the 5.5K.

Whoopsy

I just read in the mail section of this issue of MotorTrend something along the line of MB electronically limiting the torque output of the 6.3 engine to protect the 7-speed gear box.

Jrocket

The 63 was the first through the lights,meaning he won.The 55's run was quicker and faster though.The 63 had a better reaction time and 60' time,the 55 made better power and that shows in the mph and ET numbers.The clock doesnt start until the staging lane beems break.Reaction time only matters in bracket racing,not final numbers.When the 63 gets out front, you can then see the 55 is catching up to the 63's momentum.Once the 55 cathces up too or even gains on the 63 that shows the 55 is making more power and excellerating faster.

Dogshine

jrocket - what are you watching?

when i watched the link above, I watched a driver in a 55 race a development engineer in a 63. the 55 spun its wheels and was therefore slower thru the 1/4 mile. end of story. after the race I saw, the amg spokesperson tells the average results of a day of amg challenge results of 55's vs 63's.

where you get 'The 55's run was quicker and faster though.The 63 had a better reaction time and 60' time,the 55 made better power and that shows in the mph and ET numbers' beats me. Once i saw the 63 pass the line i DID see the 63 back off the gas and the 55 start gaining on him so maybe thats what you are watching.

Jrocket

Dogshine,

What Im saying is just because the 63 crossed the line first doesnt mean he had a quicker et or mph.What crosses first an what the clocks read are 2 seperate things.The 55 could have let the 63 go,wait 2 minutes before launching and still made a better pass than the 63.Im concerned about times,not who crosses the line first.Times show hp and traction.

Whoopsy

0.1 seconds and 1 mph difference is like nothing, we can basically assume that the 2 cars are EQUAL!!. On any given day it will all comes down to driver reaction and traction.

All that is different is that HOW you like the power to be delivered, a sledgehammer in the 55 or a jet engine in the 63.

trap speeds on the 55s indicated that MB UNDERrates the engine at 470hp, as I do not belive they OVERrate the 63.

Dogshine

I understand and you are correct, but in relation to that specific video, the spokesman mentioned that the 55 lost traction in that specific race. In that specific race, the 55 was slower, as would be expected with a burnout at the top of the race.

Jrocket

I saw the 55 lose traction and also leave late but I never heard what the 55's times were on that run?

Dogshine

the guy speaking said the 55 was slower on that run and then he said that on average the 55 is a tenth faster over the 1/4 mile... no?

Jrocket

I'd have to watch it again,either way my point was about when the clock starts and how being the first across the line doesnt always mean you'll have the quickest ET.Nothing more.


BTW,do you want to hit Irwindale up this thursday night for some 1/8th drags?