R50 Gearbox MINI one R50

Discussion in 'Car Builds, Projects, Idea's Experiments' started by PascalR50, Feb 15, 2020.

  1. PascalR50

    PascalR50 New Member

    Feb 12, 2020
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    I' m new in Mini world , and i try to find best solution for MINI R50 hillclimb preparation .
    I read that MIDLAND 5 Gear are not the best and some of drivers have changed MIDLAND gearbox to GETRAG .
    1/ GETRAG 5 gear are more robust with the same ratio of gear. same weight
    2/ GETRAG 6 gear are more robust with short ratio of gear .but more heavy (but +32 lbs)
    3/ I dont know if it is possible to use GETRAG 5 with short ratio ???

    For GETRAG 6 , do we need to change transmissions ?

    Thank you in advance for your feed back .
     
  2. MCS02

    MCS02 Moderator
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    I am not a lot of help with this one but I found two articles that may be of help.

    This one is outlining haw to do a GETRAG swap

    https://www.motoringalliance.com/articles/fixing-the-weak-link-getrag-6-speed-swap-for-mini-cooper.56/

    This one has some of the gear ratios

    https://www.motoringalliance.com/articles/1st-gen-gear-ratios-manual-transmission.76/

    Hope this helps a little.
     
  3. MCS02

    MCS02 Moderator
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  4. colinmini

    colinmini Well-Known Member

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    I have a 2005 with the 5speed Getrag, it’s very robust......but it now has a new problem: getting axles! These axles are different from the Midlands and the CVT and the S’s 6 speed! And now there are no new oem MINI R50 Getrag axles, only rebuilt ones or new after market ones(these have had mixed reviews!) After 166,000 miles, I am considering swapping to a 6 speed......but as mentioned above, it requires a number of additional parts, clutch, axles, gear lever/changer, and more. This 6 speed option does allow the ability to install a limited slip differential too! Kinda helpful, but with our stock power, not nearly as helpful as with an S!
     
  5. PascalR50

    PascalR50 New Member

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    #5 PascalR50, Feb 16, 2020
    Last edited by a moderator: Feb 16, 2020
    Salut, Merci COLINMINI pour votre retour, cela confirme que j'irai à GETRAG 6 et comme je l'ai vu après juin 2004
    modèle pour utiliser le dernier rapport amélioré.



    Hello, Thank you COLINMINI for your return, this confirms that I will go to GETRAG 6 and as I saw it after June 2004
    template to use the latest improved report.
     
  6. PascalR50

    PascalR50 New Member

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    #6 PascalR50, Feb 16, 2020
    Last edited by a moderator: Feb 16, 2020
    Salut, très intéressant !!! Merci MCS02 . Beaucoup de pages à lire, mais comme j'ai vu beaucoup de détails et d'informations spécifiques, est-ce exactement que je recherche mon projet.





    Hi, very interesting !!! Thank you MCS02. Lots of pages to read, but since I saw a lot of specific details and information, is that exactly what I'm looking for?
     
  7. cristo

    cristo Well-Known Member

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    I put a 6-speed and Quaife LSD in my
    2003 R50 about 7 years ago when my
    Midlands gave up the ghost. Lost the
    car 2 years ago to an accident but i
    loved it while I had it. Both the Getrag
    5-speed and the Getrag 6-speed require
    the same plethora of other required
    additional parts to do the swap, so the
    cost difference is just the difference
    between the two transmissions, and
    although th 5-speed is perfectly adequate
    for the R50 (unlike the Midlands), the
    6-speed is much more robustly built.
    I used the Valeo clutch and flywheel kit
    which is a good bit less expensive than
    the oem dual mass flywheel and clutch,
    and a pound or twolighter as well.
    The 6-speed flywheel is about 50% heavier
    than the 5-speed, but that does make it super
    easy to launch. I would get the later 6-speed
    (2004-5) as it has quicker gears ratios
    compared to the older ones and that works
    better with the lower powered R50.
     
  8. colinmini

    colinmini Well-Known Member

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    Sorry about you loosing your R50. Most R50 owners regret not still having their’s. How did the Quaife work out for you? I have determined that with the 126 hp, it wouldn’t be that beneficial...for example on the Dragon, I only think it would help on 4 corners of the 318. (On those corners I need to modulate the throttle to keep inside wheel from spinning). But would be very interested to hear your take?

    When I performance drive my R50 on the autox, track or Dragon, I treat the throttle as a light switch: either full throttle or completely off, no modulation! Lol. I have almost finished restoring dad’s old race car(1974 Datsun 240Z full road race car with 300 hp and less than 2000 pounds!) this should be an interesting adjustment for me. We will see if I can really drive or not! Lol
     
  9. cristo

    cristo Well-Known Member

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    The Quaife helped mainly in snow, wet, gravel, etc.
     
  10. MCS02

    MCS02 Moderator
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    You need to start a thread with some pictures or post them in our picture thread. I love those old Z cars!
     
  11. Dave.0

    Dave.0 Helix & RMW Powered
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    #11 Dave.0, Feb 16, 2020
    Last edited: Feb 16, 2020
    Here is your solution to better than OEM axles. Built right with the highest quality, perfect fit and cheaper than a pair OEM axles.

    Here is a link to the post on M/A 6 years ago, so the parts last.

    https://www.motoringalliance.com/threads/rmw-custom-driveshafts-group-buy.21845/#ixzz337nTYTXd

    The Driveshaft shop axles are not worth the money and all the rebuilt ones use ver cheap parts that fail.

    Lots of people with R50’s and other MINIs like “S” , JCW’s, GP’s and high HP modded cars run them including me.

    Factory replacement axles that handle more power than the stock. Great for your track day Mini or daily driver.

    http://store-revolutionmini-com.3dcartstores.com/RMW-500whp-axles_p_75.html
     
  12. colinmini

    colinmini Well-Known Member

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    Dave, I get what you are saying, but not sure this shop makes R50 axles. At least I don’t see anything for R50, let alone R50 Getrag, I wish they did, I would buy them in a second!
     
  13. colinmini

    colinmini Well-Known Member

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    Thanks for your input!
     
  14. Dave.0

    Dave.0 Helix & RMW Powered
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    Contact JAN on his page. He has parts that are not listed on the website. I am sure he could have them made for you.
     
  15. colinmini

    colinmini Well-Known Member

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    Thanks for the tip. I’ve chatted with Jan a few times. Sadly, R50’s are not that popular performance cars.
     

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