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Mitsubishi reveals Twin Clutch SST gearbox

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Lancer Proto X

Mitsubishi Motors has unveiled two of the technologies that will go into the upcoming 10th in it’s generation Mitsubishi Lancer Evolution, but let’s talk about them one at a time. We’ll have a look at Twin Clutch SST (Sport Shift Transmission) first – an automated manual transmission with twin clutches much like Volkswagen’s DSG, the current benchmark for dual clutch automated manual transmission.

Much like DSG, Mitsubishi has upt the odd gears (1st, 3rd and 5th) on one clutch and the even gears (2nd, 4th, and 6th) on the other clutch. Under precise system control, the gearbox swaps between gears much faster on the upshifts as the next gear is preselected.

The Twin Clutch SST system has three shift programs – Normal, Sport and S-Sport. Normal mode like it’s namesake is for normal driving around town and highways. It uses low shift points for better comfort and fuel economy.

The Sport mode is to be used in situations like mountain driving, or whenever you need lots of engine braking, keeping the gears in lower ones for longer than normal. Shift points are also higher for more power. S-Sport mode is the mad, rapid, rev to redline mode with the fastest possible shifting.

Mitsubishi did not release the shift times for the Twin Clutch SST so we don’t really know at this moment whether it is faster or slower or equal to Volkswagen’s DSG.

20 Comments »

  1. eezarm said,

    July 10, 2007 @ 4:32 pm

    nice…

    errr…can i put this in my waja, replacing the old mitsu engine?
    :D

  2. proton GL said,

    July 10, 2007 @ 4:40 pm

    gearbox swaps between gears much faster on the upshifts as the next gear is preselected.
    ——————————————————
    so its not sequential pedal shift,

    or the best selector should be stick shift to be thrown at any gear desired. like that? like 5th to 3rd,

    anyone clarify this-

  3. nyawere said,

    July 10, 2007 @ 4:41 pm

    Dont talk about being better than DSG, if it is on par, i will already be a happy person. If you have tried the DSG, you will know that it is the beswt piece on engineering product on the Gti. The only problem is that the DSG, (if not mistaken) can only take it up to 280bhp. It just cant handle that much power.

    Knowing full well that the evo 10 will be 280bhp and above, i would say that will be an engineering masterpiece , if it is on par with the DSG.

  4. acbc said,

    July 10, 2007 @ 6:39 pm

    Yeah… after so long… hopefully it will land its way into the new Evo X.

  5. nmh said,

    July 10, 2007 @ 6:44 pm

    DSG handles 1001hp on bugatti veyron…and of course with paddle shifter. Bugatti use stick shifter btw

  6. Upcoming Mitsubishi Lancer Evolution’s new S-AWC system details said,

    July 10, 2007 @ 6:46 pm

    [...] Related Posts: Mitsubishi reveals Twin Clutch SST gearbox [...]

  7. szw said,

    July 10, 2007 @ 7:51 pm

    when did BMW making that gearbox ?

  8. mystvearn said,

    July 10, 2007 @ 8:15 pm

    nice stuff. Same price as old one?

  9. LittleFire85 said,

    July 10, 2007 @ 8:50 pm

    BMW is SMG gearbox.. I think is the VW invent DSG first.. VW DSG gearbox can hold until W12 engine, it just the oil and material used in the gearbox has to change.. If u check the 1.4TSI engine, the VW downgrade the DSG gearbox to hold less BHP of the engine..

  10. Dogster said,

    July 10, 2007 @ 10:26 pm

    I will use all my savings, sell my car, house, clothes and wife to buy it , kekekekekekekeke just joking. :P

  11. aesthari said,

    July 10, 2007 @ 11:15 pm

    Cool, pre-selected gears, sounds intelligent.

  12. Javanese said,

    July 10, 2007 @ 11:27 pm

    @ nmh,
    Ricardo Engineering are the one who built the custom dual clutch transmission for the Veyron. It’s is not the DSG that came out from VW factories (which made by Borg Warner) it’s only marketed as such because VW are parent company of Bugatti. It uses soo many custom parts that calling it a “production” DSG transmission is like calling an F1cars gearbox just another AMT.

    @littlefire85,
    DSG was designed and built by Borg Warner and exclusively licensed to VW. VW help in the development and footing some of the R&D bill (I assume so much that they got an exclusive license to it). And BMW are in the process of making their own dual clutch gearbox (called M-DCT) which is being built by Getrag. I think it was posted here by Mr Tan in May or June.

    I think the SST gearbox are based on (if not sourced from) Getrag DCT as bigwigs at Mitsubishi denied that it’s a DSG or a DSG derived transmission. Plus the new getrag DCT are touted to be able to handle up to 750nm of torque which is pretty logical choice for Mitsu since we know that tuners will mess with this car engine barely 1 week after it’s release. You can read the research article at just-auto.com

    @eezarm,
    Nope you cant put it on you waja since it’s a brand new engine (4B11T I think) based on a brand new chasis with a brand new gearbox. :)

  13. LittleFire85 said,

    July 11, 2007 @ 12:37 am

    Javanese, What i know VW finance most of the R&D at borg warner coz their factory produce most are gearbox transmission. If VW don’t give them a lot of $$$, do u think only VW will get it? beside that, VTG turbo are also from them used in porsche turbo.. But i heard rumours that VW also have share in borg warner..

  14. nmh said,

    July 11, 2007 @ 12:50 am

    heard bout borgwarner-veyrontransmission-vw story. ooo tats not dsg kaa

  15. Javanese said,

    July 11, 2007 @ 10:00 pm

    I think it’s either VW got a share in BorgWarner or the members of the Porsche family had some share in it. Because we know that VW got an exclusive DSG license from BorgWarner and Porsche got an exclusive VTG license from also them. And we know who owns both company…

  16. New 2007 Mitsubishi Lancer specs and photos said,

    July 28, 2007 @ 6:26 am

    [...] expected to be powered by a 4B11T 2.0 liter MIVEC Turbo making over 300 horses equipped with a dual-clutch gearbox. Dodge used a different approach with it’s Caliber SRT-4, turbocharging the 4B12 2.4 liter [...]

  17. Mitsubishi Concept-cX said,

    July 31, 2007 @ 9:37 am

    [...] generation 1.8 liter Clean Diesel engine mated to an automated manual transmission – perhaps the Twin Clutch SST? Even the interior trim is environmentally friendly, using “Green Plastics”, a [...]

  18. Japanese Mitsubishi Lancer Evolution X Brochure said,

    September 4, 2007 @ 7:25 am

    [...] for a carbon fibre GT wing-type design. The GSR can be equipped with either a 5-speed manual or a 6-speed Twin Clutch SST gearbox, while the RS only comes with a 5-speed [...]

  19. trustgtr said,

    September 7, 2007 @ 2:48 pm

    gonna be one mad point to point car…with the new gbox, its gonna be even better..its time break dear old piggy bank..

  20. Mitsubishi Lancer Evolution X GSR and RS said,

    October 2, 2007 @ 1:08 am

    [...] Mitsubishi Lancer Evolution X GSR comes with either a 5-speed manual gearbox or a 6-speed Twin Clutch SST dual clutch automated gearbox. It also includes the S-AWC all-wheel drive system. The standard wheels are Enkei 12-spoke 18 inch [...]

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