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Thread: Just bought a Birkin. Need transmission advice.

  1. #1
    Join Date
    Mar 2019
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    1

    Default Just bought a Birkin. Need transmission advice.

    Greetings all,

    I just bought a Birkin built around 2010 by Texas Motor Works.
    It has a Duratec and a type 9 trans with close ratio gears.
    The transmission needs refreshing which I am happy to perform myself, but I wonder what the best source of parts is. Should I call TMW and buy from them, assuming they even sell trans parts? Or is there a 3rd party that makes/sells the gears and such for the trans that TMW sold with the car?

    In case it might matter, I am in southern California.

    Thank you for any advice.

    Regards,
    Robert
    Last edited by PalaceOfFun; 03-29-2019 at 01:13 AM. Reason: typo

  2. #2
    Join Date
    Feb 2009
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    NYC
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    British American Transfer (BAT) in FL usually has all those parts imported from the UK. THe T9 was used in the Ford Merkur here. Assuming you are not touching the non-standard(?) close ratio gearsets you may have then this should work.
    http://www.batinc.net/merkur.htm


    If you are thinking upgrading internals, ratios, etc then look at Burton Power in the UK (great catalog to print out and browse)
    https://www.burtonpower.com/parts-by...9-gearbox.html


    Tracsport offer upgraded T9 bits and ratios for motorsport applications. Depends on what you want to upgrade. They are very familiar with Caterhams so will know your Birkin needs well.
    https://www.tracsport.com/


    If you want pure transmission specialists then Quantum Mechanics in the UK know their stuff and have rebuild kits plus ratio options and upgrades.
    http://www.quantumechanics.com/


    UK contacts are happy to deal with us in the US. Just call them early morning our time to catch them with the time difference.
    Last edited by Croc; 03-29-2019 at 03:16 AM.
    Mike
    2010 Caterham CSR with Cosworth 2.3 Duratec
    2018 Caterham 420R with 2L Duratec 210hp at Donington UK
    1975 BMW CSL Group 4 (restoration - engine and dry sump install time)
    1977 Holden Torana "A9X" (awaiting restoration)
    1985 Holden Commodore Group A (restoration - engine rebuild)
    1982 Ferrari 400i (will repaint to original color in 2020)
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic

  3. #3
    Join Date
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    Higganum, CT
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    Just to add to what Mike said:

    Quantum Mechanics is actually located in CT not too far from my house. I bought the T9 kit for my '64 MGB from John.

    I also had good luck with BGH in the UK when I put a "2.8 Sporting Close" gearkit in my old Birkin with a T9. Nicest transmission I've ever used. Here: http://www.bghgeartech.co.uk/html/bgh_home.html
    Bruce

  4. #4
    Join Date
    Nov 2013
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    76

    Default

    I don't recommend buying from TMW. I've had pretty terrible experiences with them.

  5. #5
    Join Date
    Dec 2014
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    Los Angeles
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    I would second the recommendation for John at Quantum. Great guy, a straight shooter.

  6. #6
    Join Date
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    Quote Originally Posted by 11Budlite View Post
    Quantum Mechanics is actually located in CT
    No idea why I typed UK in my post - John is in CT as you say. Thanks for editing my brain farts!
    Mike
    2010 Caterham CSR with Cosworth 2.3 Duratec
    2018 Caterham 420R with 2L Duratec 210hp at Donington UK
    1975 BMW CSL Group 4 (restoration - engine and dry sump install time)
    1977 Holden Torana "A9X" (awaiting restoration)
    1985 Holden Commodore Group A (restoration - engine rebuild)
    1982 Ferrari 400i (will repaint to original color in 2020)
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic

  7. #7
    Join Date
    Mar 2014
    Location
    Gibbsboro NJ
    Posts
    36

    Default

    I have a BGH gearbox in my Caterham, which Iíve tracked enthusiastically for the last 3 years and itís been great.
    They have their own alumminium (spelt correctly) casings, which are a nice upgrade to the standard box.
    Highly recommend


    Sent from my iPhone using Tapatalk

  8. #8
    Join Date
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    Quote Originally Posted by Croc View Post
    No idea why I typed UK in my post - John is in CT as you say. Thanks for editing my brain farts!
    Glad to help Mike, just keeping you on your toes!
    Bruce

  9. #9
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    What JeffersonRaley said: there is a reason TMW is no longer Birkin's USA distributor (IMHO, as the purchaser of an '09 Birkin assembled by TMW, and as other TMW purchasers on this Forum have reported).
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

  10. #10
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    Quote Originally Posted by JeffersonRaley View Post
    I don't recommend buying from TMW. I've had pretty terrible experiences with them.
    Ditto. Several here who have had a ‘less than stellar ‘ experience with TMW.
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