You need to read the smallprint as to how shift times are measured.
It should be from intial torque release to return of full application of torque.
The 147 GTA selespeed does this in 0.4s as I remember from some earlier thread I participated in on this.

Some other MArques brochures will say responds within 100ms but they don't mention that they might actually be finished for quite some time
I'm sure there are in fact quicker systems around now than the Selespeed inluding many of those on the list, and the impressive DSG sounds like best option to me.

 

Apparently Fiat "Who own Alfa" own Ferrari , so thats why they got the tech from them. And the computer system does control hydraulics that do you gear changes.
Nice to know isn't it!

yea it's nice to know and spend a bomb when it's time to get it replaced

 

ah well, you get the idea

 

Bugatti Veyron (proposed)
200 ms

The Veyron eventually used a version of Audi's DSG twin clutch gearbox.
So there is no actual shifting of gears going on during the gearchange.

 

Isnt the DB9 an automatic with a torque converter?

yep

 

You also need to checkout to comparative costs to have those gearboxes when they are an option.

As for the ultra-quick BMW SMG II gearchange, that comes with a warning that you will break the gearbox if you keep it set to the fastest speed...

 

Isnt the DB9 an automatic with a torque converter?

IE the shist time is irrelevant as its still slushing around after the change?

 

can i just add that whilst 0.7s is a very quick change, the DB9 does it in 0.25s

here, to make us all feel slow...

Here lists the minimum shift time of the most popular automated manual gearbox:

Gearbox (car)
Min. shift time

BMW SMG II (M3 E46)
80 ms

Ferrari F1 (Maserati 4200GT)
80 ms

Ferrari F1 (360 F1)
150 ms

Ferrari F1 (Enzo)
150 ms

Bugatti Veyron (proposed)
200 ms

Ferrari F1 (575M)
220 ms

BMW SMG (M3 E36)
220 ms

Aston Martin Vanquish
250 ms

BMW SSG (3-series)
250ms (150ms for 1st to 2nd)

Alfa Selespeed (156 Selespeed) (old)
700 ms

were the slowest out!

the selespeed is a great system in my opinion, although it doesnt seem to like revving much past 7k... makes some weird and wonderful noises changing gear at 8k rpm lmao

bit background... CLICKY CLICKY

 

Re: The Cool Thing About the Selespeed

The Vanquish I didn't mention as it gets possibly the worst press of the lot for these systems.

Aston have taken a very different philosophy with their 1st gear ratio, everyone else fits a very low 1st gear ratio to ease the load on the clutch (1st is the same as reverse on a Selespeed), Aston chose to fit a 1st gear which is good for about 60mph... The result is a lot of clutch slip when manoeuvring. Apparently there is a passage in the manual warning that the smell of burning clutch is to be expected when trying to park!

 

David - The Siemens (VDO) SMG system on the 'M' cars is a joint venture between Marelli and VDO using Marelli patents.

The Vanquish I didnt mention as it gets possibly the worst press of the lot for these systems.

 

And the Aston Martin Vanquish.
BMW use two completely different paddle-shift systems.
The "M" cars use a Siemens developed system, all the others get the Magnetti Marreli system.

 

Yeah, as fitted to the 360 CS - and the Citroen Pluriel!

 

Ahhh, I see.

 

The system on Fiat, Alfa Romeo, Ferrari, Mercedes, Maserati, BMW, Renault and Peugeot-Citroen are all basically the same and are manufactured and patented by Magneti Marelli.

They all have lineage that can be traced back to Ferrari in F1 in 1986 which was the first application of Selespeed. Basically it can be engineered onto any manual gearbox.

The new Lexus supercar will be fitted with Marelli actuators and CAN BUS interfaces, so that will be the end of their reputation then!:lol:

 

I think you are right on the money with that!

 

Surprised it is ferrari derived, I thought it had some robot thingys controlling the normal gearbox and clutch.

And what do you think the Ferrari gearboxes have?
My understning was that it was a development of the system used in the Ferrari 355 F1 road car, which itself was a development of the system used in the F1 race car during the time Mansell & Prost were at Ferrari.
The system was then further enhanced in the 360 F1 road car and that is probably close to that used in the 156/147GTA.

 

Apparently Fiat "Who own Alfa" own Ferrari , so thats why they got the tech from them. And the computer system does control hydraulics that do you gear changes.
Nice to know isn't it!

 

Surprised it is ferrari derived, I thought it had some robot thingys controlling the normal gearbox and clutch.

 

I think you'll find everyone that has replied has been genuinely interested. I never knew that fact you pointed out, for one. Good for you, it's all about the enjoyment! Go forth and rev hard.

 

I am with you man

I loved my SS transmission on the old 147 I had! Glad you enjoy yours

 

Oh Yeh torque!

 

No need to be rude!
Im still new to Alfa's so all this stuff is still exiting.

 

Handy to know, although I guess you'd cotton on sooner or later after some spirited driving!

By the way, I think you mean torque converter!

 

thats great Kutter.....