guys. whats DSG? lol

 

I really like the thought of SMG but I figure the delated shifts are more for comfort {I could be wrong} but I think that in time manufacturers should offer the option as the F430 has to switch to race mode for that millisecond shift.

 

^^^ one up on dat...Have auto but wouldn't have minded an 6spd. also.. Truth be told AutoableMeham(think I spelled that right). Jeremy@ Performance Factory has auto(TH400) and well, lets see is at the top of da board for 1/4 mile time and tagged car. hummmmmm. 10.40's.....Again like 6spd. also but to me fast is fast no-matter how u look at it....

 

BMW SMG and SMGII have that. They have up to seven levels of shifting. When you shift level 7 on SMGII in a M3, you will hear the rear end go "bamm", it also powershifts every gear. You don't lift to shift, and it shifts faster than any human hand. Fastest recorded I think was mario andretti, but SMGII beat it. It even beat the ferrari sequential shifting in time elapsed.

 

DSG's are a bit different. That's vw/audi territory. They are control by clutches that shift when torque and rpm is applied. DSG's shift much smoother than SMG transmissions though.

 

What about the twin turbo Le Mans NSX that Keichi Tsutchia drove in BMI? It had a sequential gear box with a clutch petal for heel-toe shifting. That is a real tranny.

 

For every day driving i'll take a manual. Smoother then even automatics and still if you need it to you can shift it about as fast as a sequential manual.
I was reading a test where they measured the speed of the BMW's SMGII. It was about twice as fast as a comparable ferrari seqential manual, but only faster then a human by fraction of a second. Of course they are more consistent, but they're not MUCH faster then manuals.

Having driven some m3's with SMGII i can tell you that it takes some time to get used to. The tranny shifts fast no matter when you shift. So it feels a bit jerky to beginners.

For racing i'd tae the SMG. I've never raced the SMG, but i would imagine it's easier since you wouldn't have to worry about matching revs.

 

LOL!

 

DSG is so much better than SMG why is SMG even an option?

 

SMG is a BMW proprieatary technology. DSG is made by Borg Warner and licensed to Audi VW AG.

 

I prefer the new automatics like the SMG and the Tiptronic. Don't have anything against the manuals but for traffic and absolute performance I'd choose the automatic. If I had more open road where I lived and just out driving on the road, not on the track or strip, then I might consider driving a manual more often than an automatic. I realize that there are people that enjoy stomping the clutch and rowing the gears and there is nothing wrong with that, I'm just not one of them. Except for when I'm in that nostalgic mood and have open road, I'd rather have the automatic.

 

F1 cars have a clutch paddle that they use at the starting line, in the pit and if the car goes into a spin. It's a paddle that basically disengages the engine from the rest of the drivetrain. Similar to Neutral in most ATs and MTs.

F1 cars used to have launch control which is no longer allowed. Some ATs like the SMG and DSG still have this feature but it's not mentioned in the manual. Do a Google search on how to activate it. The Tiptronic type ATs (Zs included) don't need launch control, they have torque converters that have the capability to slip and torque multiply. You would launch one of these using a Brake Torque Launch.

There seems to be some confusion as to what a clutch does. A clutch is what allows all multi-gear transmissions to run multiple gears. It doesn't have anything to do with a car being an AT or MT. The clutch is what allows two or more shafts to spin at different speeds or at the same speed. ALL MULTI-GEAR TRANSMISSIONS HAVE AT LEAST ONE CLUTCH. NO IFS, ANDS OR BUTS. The difference between an AT clutch and a MT clutch is just like the name implies. The modern AT clutch is automatically controlled usually by electro-hydraulics and a MT clutch is manually controlled usually with a clutch pedal.

 

DSG is an Audi/VW gearbox. It's an acronym for Direkt Schalt Getriebe. Loosely translated to Direct Shift Gearbox. It uses two asynchronos electro-hydraulic wet plate clutches that alternate at each gear shift. Since, one clutch is disengaging while the other clutch is engaging it produces a very fast shift.

SMG uses a single electro-hydraulic friction plate clutch.

Tiptronic uses an electro-hydraulic clutch pack and when the torque converter is unlocked or uncoupled it also acts as a clutch.

Most of the new ATs can shift several times faster than any human can. Anybody that says that they can manually shift faster than a properly shifted AT is full of BS. For reference

Average human eyeblink: 300 milliseconds
SMG II: 80 milliseconds
Tiptronic S: <200 milliseconds (shift speeds are adaptable) (Z tranny is similar)
Pro NASCAR Driver: ~0.7 to 0.8 seconds

 

ok whos the fastest "shifter" in the world and what is his or her time?

 

I think the DSG is the fastest mass produced shifter right now. It's about 8 milliseconds.

• A long shift time is considered anything over 625 ms [1]
• Aston Martin Vanquish: 250 ms [2]
• Ferrari 575M: 220 ms
• BMW M3 E36 with SMG I: 220 ms [2]
• Audi TT Quattro 3.2 (Direct Shift): 200 ms[3]
• Ferrari 360: 150 ms[2]
• Enzo Ferrari: 150 ms[2]
• Ferrari FXX: Under 100 ms [4]
• BMW M3 E46 with SMG II: 80 ms[2]
• Volkswagen Golf GTI (Direct-Shift): 8 ms [2]
• Bugatti Veyron (Direct-Shift): 8 ms [2]

The Pro NASCAR drivers are probably some of the fastest manual shift drivers around.

 

Definitely gonna have to go with stick here. It's not only being and feeling more in control of your car, but it just makes you feel as if you're part of the car and its performance...the whole man and machine thing, ya know?

It can suck from time to time if you're stuck in traffic, but I think the good definitely out-weighs the bad. Hearing the engine on perfect up- and down-shifts...music to the senses.

 

lol, No ... you don't assume that everyone who live in US is US citizen, do you?