AMG Speedshift vs SMG
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C55AMG W203; 330i E90
AMG Speedshift vs SMG
My only experience with driving a manual clutchless shift gear car was on the Toyota MR-S. My other experience is I have been the passenger of a M3 with SMG. Can anyone point out the technical design and handling differences between above with the C55's/E55's AMG Speedshift ?
Thanks
cnt
Thanks
cnt
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C55AMG W203; 330i E90
Originally Posted by 430
The AMG unit is a standard Auto Tranny with a manual option. Speedshift simply shifts quicker when in manual mode.
cnt
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997 Carrera S
Originally Posted by cntlaw
Thanks. So can I say SMG is a true manual and the AMG Speedshift is still an Auto Transmission ?
cnt
cnt
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C55AMG W203; 330i E90
Originally Posted by AlBoston
speedshift is very quick, it is much smoother than SMG.
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Originally Posted by MrBonus
That is correct. The AMG uses a torque converter while the SMG uses hydraulic and electronic devices to control the actual clutch.
1. A manual shift ( like my good old MR-S ) will go to neutral when still
2. The AMG Speedshift will not go to neutral but second gear ( like my Z3 Sport Shift Transmission )
3. Thirdly, I read about AMG Speedshift will kick down when enter a bend with 0.5g force - why and how it does that?
cnt
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From: GTA
when you exceed # of Gs, it will auto kick down using the engine breaking to help stopping and Speedshift holds the gear during corning when it exceed certain amount of G force too. That only applies to Speedshift Mercedes. It takes some time to use to this tranny, but once you use to it, you will be faster than 90% of the M3 as BMW_Instructor insist 
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Originally Posted by derAMG
when you exceed # of Gs, it will auto kick down using the engine breaking to help stopping and Speedshift holds the gear during corning when it exceed certain amount of G force too. That only applies to Speedshift Mercedes. It takes some time to use to this tranny, but once you use to it, you will be faster than 90% of the M3 as BMW_Instructor insist
Thanks. I am curious in what ways the AMG Speedshift differs from the +/- control of the auto transmission on my 2001 made facelift E320 ?
cnt
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W206 PHEV AMG
Originally Posted by cntlaw
derAMG
Thanks. I am curious in what ways the AMG Speedshift differs from the +/- control of the auto transmission on my 2001 made facelift E320 ?
cnt
Thanks. I am curious in what ways the AMG Speedshift differs from the +/- control of the auto transmission on my 2001 made facelift E320 ?
cnt
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Originally Posted by cntlaw
derAMG
Thanks. I am curious in what ways the AMG Speedshift differs from the +/- control of the auto transmission on my 2001 made facelift E320 ?
cnt
Thanks. I am curious in what ways the AMG Speedshift differs from the +/- control of the auto transmission on my 2001 made facelift E320 ?
cnt
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997 Carrera S
Originally Posted by BlackC230Coupe
Dont expect anything a whole lot dofferent from that with the speedshift, there pretty similar.
A C55-on-order person would like to know.
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From: Diamond Bar, CA
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Originally Posted by MrBonus
Would you say that Speedshift is more of a gimmick rather than a functional addition?
A C55-on-order person would like to know.
A C55-on-order person would like to know.
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Originally Posted by MrBonus
Would you say that Speedshift is more of a gimmick rather than a functional addition?
A C55-on-order person would like to know.
A C55-on-order person would like to know.
Well the speedshift is not a gimmick. Its really just the touchshift which is just like any tiptronic tranny only speedshift says the shifts are 35% quicker, and it also holds gears around turns. Besides that, its no different then any other Mercedes auto tranny.
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From: Diamond Bar, CA
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Originally Posted by BlackC230Coupe
Well the speedshift is not a gimmick. Its really just the touchshift which is just like any tiptronic tranny only speedshift says the shifts are 35% quicker, and it also holds gears around turns. Besides that, its no different then any other Mercedes auto tranny.
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Originally Posted by FrankW
add: the new manual mode for the C55 and 05 55s will not change gear at redline unless the driver tells it to. In other words, you time your own shift. So if you shift in the wrong spot in the manual mode, don't expect to win against some respectable cars.
Oh yeah, i forgot about that. Thats only if you press the "M" button on the shiftgate. If someone is to worried they wont shift intime, they can still use it like the regular speedshift i believe.
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Originally Posted by BlackC230Coupe
Oh yeah, i forgot about that. Thats only if you press the "M" button on the shiftgate. If someone is to worried they wont shift intime, they can still use it like the regular speedshift i believe.
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Originally Posted by FrankW
does the button now says "C, W, and M" on it? that's what I remember when peeking at a C55 at dealership.
It actually says "C" "S" and "M". comfort, sport and manual.
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Originally Posted by 430
Unless you are in manual mode then it is slow as Christmas.
Last week, when I was on my friend's M3 SMG in Tokyo, he demonstrated that the SMG went well up to 120 kmh on 2nd gear at ~7000rpm before he needs to shift. I wish the C55 Speedshift could do that too , of course at much lower revs
cnt
