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Thread: Information about the Mirage CVT (Jatco CVT7 JF015E) operation, video, diagrams

  1. #11
    Senior Member Alpha_One's Avatar
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    Locally, the Honda CVTs (on the 2003-2008 City / Jazz) are known to have problems with the start clutch after a few years. That said, ours has been fine so far, after 9 years and nearly 80,000 km.

    That torque converter must take some load off that start clutch. Mitsu has already used this setup with the Lancer, I believe, though the Mirage is the first one to have a planetary gearset on it as well.


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        click to view fuel log View my fuel log 2012 Mirage GLS 1.2 manual: 33.3 mpg (US) ... 14.1 km/L ... 7.1 L/100 km ... 40.0 mpg (Imp)


  2. #12
    Administrator MetroMPG's Avatar
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    One good thing: this CVT7 has been in production by JATCO since 2009. This should be good for Mirage owners: ~4 years for testing & working out any bugs.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage base ES 1.2 manual: 54.0 mpg (US) ... 23.0 km/L ... 4.4 L/100 km ... 64.9 mpg (Imp)


  3. #13
    Senior Member Mikhail's Avatar
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    Quote Originally Posted by Alpha_One View Post
    Locally, the Honda CVTs (on the 2003-2008 City / Jazz) are known to have problems with the start clutch after a few years. That said, ours has been fine so far, after 9 years and nearly 80,000 km.
    If it occurred during the warranty period, then there would be no cost for owners. In the post warranty period it's going to be an expensive headache. Thankfully, the JATCO didn't supply the Honda (maybe, Aisin?).

  4. #14
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    Quote Originally Posted by Mikhail View Post
    Even the classic automatic transmissions have several clutches. I don't think they need to be replaced.
    well the origional CVT does not have any clutches ( beside reverse? ) that one of the reasons i like it.

    the prius E-cvt got non ar all....

    less moving part and less parts in general
    Last edited by spacester; 11-05-2013 at 04:38 PM.

  5. #15
    Administrator Daox's Avatar
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    Thanks for all the really good info guys. I've added this to the sticky index.
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing
    Current project: Developing a rear sway bar alternative

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 41.7 mpg (US) ... 17.7 km/L ... 5.6 L/100 km ... 50.0 mpg (Imp)


  6. #16
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    This makes me feel better about getting a CVT, but I'm going to try my hardest to get the manual if it really is better at city mpg as Darin showed in his test drives.

        __________________________________________

        click to view fuel log View my fuel log 2010 Yaris 1.5 manual: 36.9 mpg (US) ... 15.7 km/L ... 6.4 L/100 km ... 44.3 mpg (Imp)


  7. #17
    Senior Member Mikhail's Avatar
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    Quote Originally Posted by spacester View Post
    well the origional CVT does not have any clutches ( beside reverse? ) that one of the reasons i like it.

    the prius E-cvt got non ar all....

    less moving part and less parts in general
    The Prius has a different type of the CVT (if you could call it as a CVT)
    The Prius "Continuously Variable Transmission"

  8. #18
    Carmageddon m4v3r1ck's Avatar
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    Prius transmission works very differently. It uses only one gear ratio and utilise both electrical as ICE to power the gears. Electric generators don't need gears to spin. More info check http://eahart.com/prius/psd/
    there's even sliders you can play with to understand more about the prius transmission.

        __________________________________________

        click to view fuel log View my fuel log 2013 Mirage 1.0 manual: 47.5 mpg (US) ... 20.2 km/L ... 5.0 L/100 km ... 57.0 mpg (Imp)


  9. #19
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    thats wy i called it a E-cvt ;-)

  10. #20
    Senior Member Mikhail's Avatar
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    Yeap. The Prius' CVT isn't exactly like the CVT stated on the head post.
    Even the hybrid Chevrolet Volt has a very similar transmission (Sun and Planets).



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