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  1. #1
    Join Date
    May 2009
    Location
    midwest usa
    Posts
    75

    Default Gear ratio question

    I've seen lots of reference to the US fiesta getting the fueller gear ratios and the Euro fiesta getting the driver's gear ratios. I've driven both versions and know this is the case but haven't been able to find the actual numbers. Does anybody have the actual ratios for each box....1st through 5th and final drive?

  2. #2
    Join Date
    Jun 2009
    Location
    Netherlands
    Posts
    945

    Default

    5-speed manual
    1st 3.846
    2nd 2.038
    3rd 1.281
    4th 0.951
    5th 0.756
    Reverse 3.615
    Final drive 4.070:1


    PowerShift™ 6-speed automatic
    1st 3.917
    2nd 2.429
    3rd 1.436
    4th 1.021
    5th 0.867
    6th 0.702
    Reverse 3.507
    Final drive 3.895:1 for gears 1, 2, 5, and 6.
    Final drive 4.353:1 for gears 3, 4 and R.

    Source

    European 5-speed manual:
    1st 2.82
    2nd 1.508
    3rd 1.414
    4th 1.108
    5th 0.878
    Reverse 3.615
    Final drive 3.824:1

    Source
    Final drive 1.6 Diesel 3.370:1
    Final drive Econetic 1.6 TDCi 3.055:1


    Asian 5-speed manual:
    1st 3.583
    2nd 1.926
    3rd 1.281
    4th 0.951
    5th 0.756
    Reverse 3.615
    Final drive 4.250:1

    Source

    Everything is Googled, so it's not 100% truthful. If it's true, then the Asian gearbox is interesting as it shares everything from the US box, except 1st and 2nd gear and final drive! Also I'm doubtful about the Eurobox. Found similar figures for an older Fiesta somewhere to add the 3rd digit which is missing from the source-link. But also 1st and 2nd were way off (or maybe: more accurate? as I find the figures a bit too low).
    Last edited by Marc; 09-17-2010 at 03:21 PM.

  3. #3
    Join Date
    Jan 2010
    Location
    Sovereign State of Southern California
    Posts
    869

    Default

    There's something wierd there. Even the six-speed only has one differential (and thus one "final drive"). I can't imagine how it can have two final drive ratios.
    Last edited by Reddog99; 09-17-2010 at 04:50 PM.
    -> Performance Blue <- 2014 ST, 6-spd manual, base model

  4. #4
    Join Date
    Jul 2009
    Location
    Orlando Florida Area
    Posts
    983

    Default From the Shop Manual

    Powershift

    Gear Ratio Final Drive Overall Ratio
    Reverse 3.508 4.35 15.270
    1st 3.917 3.89 15.254
    2nd 2.429 3.89 9.459
    3rd 1.436 4.35 6.250
    4th 1.021 4.35 4.446
    5th 0.867 3.89 3.375
    6th 0.702 3.86 2.735

    Computer Control with electro-mechanical actuation
    Two piece aluminum housing design
    Six (6) discrete stepped forward gears and one (1) reverse gear
    Dual Output shafts with two separate final drive ratios
    Full ball and roller bearing design for all gears and shafts
    All gears are bevel cut for improved NVH characteristics and power transfer
    All gears are in constant mesh for no loss of torque during the shifting process
    All cast construction of shift fork/linkage mechanisms


    5 Speed


    1st gear 3.85
    2nd gear 2.04
    3rd gear 1.41
    4th gear 1.11
    5th gear 0.88
    Reverse gear 3.62
    Final drive 3.82

  5. #5
    Join Date
    Jan 2010
    Location
    Sovereign State of Southern California
    Posts
    869

    Default

    I think the terminology must be tripping me up. To my old school gearhead brain, "final drive" is the same as the "differential". There is obviously something here that I don't understand. I eagerly anticipate the arrival of a shop manual (whenever they become available) so I can edgimacate myself
    -> Performance Blue <- 2014 ST, 6-spd manual, base model

  6. #6
    Join Date
    Jul 2009
    Location
    Detroit
    Posts
    2,924

    Default

    Last edited by eRic; 09-17-2010 at 11:56 PM.
    eRic 2014 ST
    2011 SES
    2012 Great Lakes Solo Ser 1st STF
    2012, 2013 Detroit SCCA Solo Ser 1st STF

  7. #7
    Join Date
    Jan 2010
    Location
    Sovereign State of Southern California
    Posts
    869

    Default

    Thanks. I've seen that before. One feature I noticed is that they say "Neutral idle allows the clutches to disengage under deceleration". That's one feature that I'm very glad seems NOT to be in the production cars. When I let off the gas, I want to slow down, not coast.
    -> Performance Blue <- 2014 ST, 6-spd manual, base model

  8. #8
    Join Date
    Sep 2010
    Location
    Vancouver, Canada
    Posts
    90

    Default

    I have my suspicions that the 2nd gear ratio is wrong in the listing for the Euro 5 speed. Even the Puma (and the Racing Puma) which have very close gears, show a 1.93:1 2nd gear. When you do the calculations, the 1.51:1 2nd gear shows an incredible rpm drop from 1st gear, and only a 400 rpm (or so) drop from 2nd into 3rd -- when shifting at 6000rpm. I know the Ford literature shows this 1.51 -- but I suspect they made an error.

    Eurofordfan

  9. #9
    Join Date
    Sep 2010
    Location
    Vancouver, Canada
    Posts
    90

    Default

    LMTech, you imply that there is a Workshop manual for the North American Fiesta... Has Helms Publications yet produced such a manual? Also, you indicate that the gear ratios for the manual transmission are shown in the manual. They look weird in that the lower gear gear ratios are what I thought were being used in the North American model -- but the upper gear ratios are what I thought were being used in the European close-ratio gearbox models....???

    Eurofordfan - Vancouver, Canada

  10. #10
    Join Date
    Jul 2009
    Location
    Orlando Florida Area
    Posts
    983

    Default

    Quote Originally Posted by eurofordfan View Post
    LMTech, you imply that there is a Workshop manual for the North American Fiesta... Has Helms Publications yet produced such a manual? Also, you indicate that the gear ratios for the manual transmission are shown in the manual. They look weird in that the lower gear gear ratios are what I thought were being used in the North American model -- but the upper gear ratios are what I thought were being used in the European close-ratio gearbox models....???

    Eurofordfan - Vancouver, Canada
    LMTech stands for Lincoln Mercury Technician and the workshop manual is a Ford website that has all service information that has a password for Ford,Lincoln and Mercury service personel

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