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Thread: Gear ratios: 2014 Mirage transmissions, 5-spd manual F5MDB & CVT (speed vs RPM chart)

  1. #1

    Gear ratios: 2014 Mirage transmissions, 5-spd manual F5MDB & CVT (speed vs RPM chart)

    The car's brochure in many countries has detailed vehicle specs. This info is taken from the Malaysian brochure, and confirmed by Mitsubishi USA (Sept 12/13) as the ratios for the US car as well, but not Europe (see below):

    5-speed manual (F5MDB-1-BAZ) non-Euro


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    (Transmission part number label from MetroMPG's Canadian 2014 Mirage)


    1st - 3.545
    2nd - 1.913
    3rd - 1.310
    4th - 0.973
    5th - 0.804

    Reverse - 3.214

    Final drive - 4.055

    Gear Ratio Speed Ranges






    This info is taken from the UK Mirage website:

    5-speed manual (F5MDB-1-ABZ)


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    (Transmission part number label from a UK spec Mirage)


    1st - 3.545
    2nd - 1.913
    3rd - 1.310
    4th - 1.027
    5th - 0.850

    Reverse - 3.214

    Final drive - 3.550

    Gear Ratio Speed Ranges






    CVT (INVECS-III, F1CJB)
    D Range 4.007 - 0.550

    Reverse - 3.771

    Final drive: 3.757

    Gear Ratio Speed Ranges

    From thread: CVT owners: is anyone willing to record some speed vs. RPM stats for us? and DonHoot's (DH data) below in this thread.

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    Tire size
    165 / 65 R14

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    Last edited by Daox; 02-19-2013 at 06:28 PM.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE 1.2 manual: 63.0 mpg (US) ... 26.8 km/L ... 3.7 L/100 km ... 75.6 mpg (Imp)


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    Minihaha (06-13-2014)

  3. #2
    Administrator Daox's Avatar
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    I added the image above for the manual trans. It shows minimum and maximum speed in each gear. It will also tell you what rpm you'll be at for a given speed.
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)


  4. #3
    Going to post one in km/h too?

    What's interesting is we've got two different engines, but apparently just one set of manual transmission ratios. (Or maybe we just don't have all the information yet.)

    Because if it's just one transmission for both engines, it has to be a compromise that sacrifices efficiency and/or "performance" one way or the other.

    I can tell you already: I haven't even driven one yet, but I wish Mitsu had made 5th gear taller, to lower cruising engine RPM for better economy. If I needed more power to pass or climb, I would downshift! But if I'm in top gear, I want the best economy. Carmakers seem to be erring on the side of designing in high RPM cruising - so drivers don't ever need to downshift. If I didn't want to shift, I'd buy the automatic!

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE 1.2 manual: 63.0 mpg (US) ... 26.8 km/L ... 3.7 L/100 km ... 75.6 mpg (Imp)


  5. #4
    Senior Member jamiec's Avatar
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    Might be able to swap the diff ratio from the cvt(3.757) into the manual(4.055) That would make the ratios all a little taller in the manual.

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    Administrator Daox's Avatar
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    Even still with the higher ratios its really getting some impressive fuel economy ratings.
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)


  7. #6
    Administrator Daox's Avatar
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    While reviewing the UK specifications for the Mirage, I noticed that they get a different 5 speed manual transmission than the Malaysian specifications show. All of the ratios have matched that I have seen until this UK info. The UK transmission is geared taller. At 100 kmh (60 mph) you're looking at a little over 200 rpm lower with the UK transmission, 2660 vs 2880 rpm.

    I have added this information to the first post.

    This now gives the possibility of swapping final drive ratios to tweak your ratios. If you want faster acceleration you would ideally opt for the UK tranny with Malaysian/Australian final drive, and vise versa if you wanted better fuel economy.
    Last edited by Daox; 02-15-2013 at 03:59 PM.
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)


  8. The Following User Says Thank You to Daox For This Useful Post:

    MetroMPG (02-15-2013)

  9. #7
    Is the UK gearing difference found on both the 1.0L and 1.2L 5-speed cars?

    In other words: same transmission with both engines?

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE 1.2 manual: 63.0 mpg (US) ... 26.8 km/L ... 3.7 L/100 km ... 75.6 mpg (Imp)


  10. #8
    Administrator Daox's Avatar
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    Yep, the UK uses the same 5spd for the 1.0L and 1.2L engines.
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)


  11. #9
    Well, if the U.K./Euro versions of the car have all the aerodynamic add-ons, then it makes sense they could run a numerically lower final drive for less engine RPM for a given road speed (due to lower engine load).

    At least for the upper gears. Though it doesn't appear they're also adjusting the lower gears, so acceleration might suffer a bit.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE 1.2 manual: 63.0 mpg (US) ... 26.8 km/L ... 3.7 L/100 km ... 75.6 mpg (Imp)


  12. #10
    Administrator Daox's Avatar
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    Good point about the aero stuff.


    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)


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