I came accross this on E-Bay and it got me thinking........

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=200317049648&ssPageName=STRK:MEWA:IT&ih=010

 

I wonder what other kit you need to get this thing working? My understanding is it is a proper 7 speed manual gearbox (no shitty torque converters) so it should be quite efficient!

 

They seem to shift nice and fast, take a look at the following video:

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That car has 720hp and achieves 229mph so I'd say it's a fairly strong 'box :mac1:

Interesting! Looks like it has its own hydraulic pump so if you could figure out what all the actuators do you may have a chance of getting it to work. You could no doubt program something like the arduino board to do it crudely but manufacturers spend literally man-years getting the shift strategies on these things right.

I'm guessing the BWM control unit is so integrated with the rest of the cars systems it won't easily work on its own.

Yes, I read somewhere that you need the SMG clocks as well, so that means you need all the wiring looms and ecu's etc.

 

If you could simply get it running a bit Heath Robinson activating the clutch and upshifts/downshifts I reckon it would be a good toy!

Prob be easiest to go back to a manual clutch. Up/down shifts should be pretty easy after that I'd think.

Why not buy it and see?!

That 'box finished up bloody cheap but it was SE London, a good 5 hour round trip :(

 

 

Found this though: http://www.usautoparts.net/bmw/models/6er/m6/smg.htm

 

SMG transmission for the pure joy of shifting gears

 

The seven-speed SMG transmission offers all the benefits of the sequential gearbox concept: The driver is able to shift gears either via the selector lever in the center console or from paddles on the steering wheel, without having to press a clutch pedal. Instead, the driver can even keep his foot on the accelerator while shifting gears. And unlike automatic transmission, the Sequential SMG Gearbox does not need a torque converter taking up energy and reducing the car's performance.

The SMG transmission shifts all gears electrohydraulically with all control units operating by wire, that is, without any mechanical connections. Both the SMG hydraulic unit and the gearshift actuators are integrated in the transmission housing. Whenever the driver wishes to shift gears, the control unit activates the appropriate solenoid valves within thousandths of a second, setting the hydraulic system as required. Now the hydraulic fluid under a high level of system pressure of up to 90 bar is able to flow into the clutch master cylinder within fractions of a second, opening the clutch in the process. This, in turn, serves to activate four hydraulic cylinders in the gearshift actuator controlled by solenoid valves in the hydraulic unit. The four hydraulic cylinders then serve ultimately to shift the gears by way of four separate gearshift rods. And when down-shifting, the engine automatically "blips" the throttle between gears.

 

 

Certainly sounds feasable. Does anybody know what pressure our Hicas pump runs at?