MECF_728x90_top

Collapse

Announcement

Collapse
1 of 4 < >

Official Announcement of The C8’s 7.18.19 Reveal; Video of The C8’s Ride; C7 Production Ending This Year

2 of 4 < >

MidEngineCorvetteForum Traveling “Forum Flag” Program Created!

We just created our MECF traveling Forum Flag Program thanks to “Ripper!” Would YOU like to display our forum flag on your Corvette, become a member of this program? Thanks for looking at the thread, especially at FVS’ created Forum Flag.

https://www.midenginecorvetteforum.c...rogram-created
3 of 4 < >

C8 Section Re-Organization, With Our New “Mid Engine Exterior/Interior Pictures, Videos and Renderings” Section

MECF members asked for our segregating pictures, renderings and videos into one area; looking ahead, that section will become our most viewed area once you get your C8’s. Pre-existing threads that fit are now being moved. Thank you for the suggestion!
4 of 4 < >

Stay Tuned As Chazcron Works On His Latest Project, The ME IP/Dashboard! Not New, But 48 Wonderful High Resolution C8 Pictures

Stay Tuned As Chazcron Works On His Latest Project, The ME IP/Dashboard! Also, High Resolution C8 Pictures!

https://www.midenginecorvetteforum.c...f-the-interior

48 High Resolution C8 Pictures:

https://www.midenginecorvetteforum.c...8-spy-pictures
See more
See less

Why a sequential transmission is faster than a dual clutch

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Why a sequential transmission is faster than a dual clutch

    But that doesn't mean it's better in a street car....

    https://www.roadandtrack.com/motorsp...-transmission/


    Dual-clutch transmissions are marketed as some of the quickest-shifting gearboxes on the planet. Here's why they're generally not used in race cars.
    [IMG]https://hips.hearstapps.com/rover/profile_photos/72ee435d-3834-4420-a55e-416409a4f419_1468348195.jpg?fill=1:1&resize=80:*[/IMG]
    BY BRIAN SILVESTRO
    APR 14, 2019[IMG]https://hips.hearstapps.com/hmg-prod.s3.amazonaws.com/images/screen-shot-2019-04-12-at-11-44-12-am-1555083871.png?crop=1.00xw:0.975xh;0,0&resize=480: *[/IMG]
    FCP EUROYOUTUBE

    In the past decade, dual-clutch transmissions have come to dominate the performance car market. They're used in everything from hot hatches to the latest, greatest hypercars. They provide the best of both worlds, providing smooth automatic operation in normal driving, and lightning-fast gear changes while going flat-out. But when it comes to actual racing, they're still not the gearbox of choice.

    Nate Vincent of FCP Euro put together a great video comparing his GTI TCR race car's old DSG dual-clutch transmission to a new sequential transmission that his team will use for the 2019 season. The biggest difference is weight. Including the flywheel and clutch, the sequential weighs nearly 100 pounds less than the DSG, which is a huge amount for a race car. The sequential also has fewer gear shafts to spin—just two versus three for the dual-clutch. Paired with a lighter flywheel, that means less rotating mass for the engine to spin.

    Unlike a dual-clutch, which uses helical-style gears, a sequential has straight-cut gears, meaning less power loss traveling through the transmission into the axles. It also uses dog teeth connectors instead of synchronizers to get from one gear to another, forcing the gears together instead of smoothly transitioning from one to another. The downside is that it's a lot less smooth, extremely loud, and requires the transmission to be rebuilt after just a few thousand miles. That's why you don't see many sequential gearboxes used in street cars.

    The full video goes into much more detail, so if you've got a few minutes to kill, it's certainly worth a watch.


    Last edited by ABorC; 04-14-2019, 10:26 AM.

  • #2
    Wonderful thread ABorC. I learned a bunch. Really good vid too. Thank you.
    So many questions about the ME right now, but the answers are nicely, though slowly, coming out.

    Excited owners of a 2015 Z06. Lifetime, annual contributors, and 20 year members of NCM. Our 2020 ME C8 Corvette is next.

    Comment


    • #3
      I learned a lot too. Excellent video.

      Comment

      MECF_728x90_bottom

      Collapse
      Working...
      X