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Thread: Replacement clutch ideas?

  1. #1
    Join Date
    Oct 2006
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    Cincinnati
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    Default Replacement clutch ideas?

    Since my engine is out and being rebuilt, I had my mechanic look at the clutch he put in 4 years ago. He says its time for it to be replaced and, while I am at it, do the flywheel and pressure plate, and throwout bearing. We put in an off-the shelf pedestrian unit 4 years ago and it wasn't ideal. So I am wondering what people are using for track focused purposes that might be a little more stout?

    I have a Zetec powered S3 with a 6 sp Caterham transmission.
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Type R, sold
    '19 Miata Clubsport

  2. #2
    Join Date
    Feb 2009
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    NYC
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    Default

    Really? You had 180hp (thereabouts) and a standard clutch could not carry it? Flywheel should be ok, no? Your wear seems pretty extreme even by track standards - 50 track days at most. Did you have the correct street clutch to start with?

    Good idea to do it now though. Learned that lesson quite a few years back...
    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 SS Group A
    1985 Holden Commodore Group A
    1982 Ferrari 400i
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic
    and another project car coming....

  3. #3
    Join Date
    Oct 2006
    Location
    Cincinnati
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    Default

    Not sure if we had the correct clutch to start with. I know we were desperate and found one that fit. I suspect my driving "style" is tough on clutches (and other car parts). Anyhow, we have had no luck finding a replacement clutch, lightened flywheel and throw out bearing. These would seem to be standard replacement parts, no? But nothing at Beachman Racing, Sevens and Elans may have a lightly used semi-competition clutch available soon, I just emailed the newly resurrected Rocky Mountain Sports car place. Am I the only one wearing out clutches?
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Type R, sold
    '19 Miata Clubsport

  4. #4
    Join Date
    Sep 2006
    Location
    Southeastern Pa.
    Posts
    2,832

    Default

    Mike are you sure you are not using that third pedal as a "Dead Pedal"
    Mangia bene, Ridi spesso, Ama molto, Guidare veloce

    2000 Caterham Superlight #123
    1.8L VHPD Rover K Series
    2009 Caterham SV
    2.3L Cosworth Duratec

  5. #5
    Join Date
    Sep 2006
    Location
    Southeastern Pa.
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    Default

    Mike will these work? I've purchased a few parts from these guys. Good service. Tom

    https://www.burtonpower.com/catalogs...q=zetec+clutch
    Last edited by yellowss7; 04-08-2019 at 10:16 AM.
    Mangia bene, Ridi spesso, Ama molto, Guidare veloce

    2000 Caterham Superlight #123
    1.8L VHPD Rover K Series
    2009 Caterham SV
    2.3L Cosworth Duratec

  6. #6
    Join Date
    Oct 2006
    Location
    Cincinnati
    Posts
    3,693

    Default

    Thx Tom, if I can't find what I need stateside, I will check Burton out. I was advised by RMMS that the standard clutch can handle 140 lbs torque tops, and my engine puts out a bit more than that.
    And please, never use the word "dead" when referencing my driving style.
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Type R, sold
    '19 Miata Clubsport

  7. #7
    Join Date
    Oct 2006
    Location
    Cincinnati
    Posts
    3,693

    Default

    I guess what I need to know is what clutch/flywheel spec the Caterham 6 sp uses? It does not use the Ford Focus Zetec SVT spec clutch. Since the T9 transmission is popular in Caterhams, is the Caterham 6 sp a compatible spec with that (interchangeable)? If so, I should be able to Google an up-rated clutch/flywheel for the T9 and use it.
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Type R, sold
    '19 Miata Clubsport

  8. #8
    Join Date
    Jan 2018
    Location
    Wellsboro, PA
    Posts
    80

    Default

    Hi, For what its worth, when I replaced the clutch in my 89 Esprit, I had went to an outfit called Buffalo Clutch. I used to work at as a mechanic for a drilling company up there and I had some issues with off the shelf clutches. Guys would just tear them up. I discovered this place a few years before when I worked as a mechanic at a small mom and pop shop. The owner, had a customer with a 427 Corvette that kept blowing the clutches up. He finally got sick of it and went to Buffalo Clutch and had a custom clutch built. I put it in and never had to replace it again.

    I called them and told them what I had and if it was possible to build a clutch for me.

    Here is what they built me..

    He offered me 3 choices, the original fiber disc, a 12 button cerametallic disc or 16 button cerametallic disc. I had them put 16 cerametallic buttons on the disc. 8 per side. He explained that the 16 would engage a lot smoother vs. the 12. The disc is 9 inch by the way and 8.5mm thick.

    They also rebuilt the pressure plate, all for $288!

    I'm sure they can do whatever you would like. They are very easy to work with and can do anything related to clutch's and brake linings.

    716-892-2828
    Kenny
    Attached Images Attached Images  

  9. #9
    Join Date
    Feb 2009
    Location
    The Frozen Northeast
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    537

    Default

    If it helps i have a performance (not race) clutch from Clutch Masters in my car.... (stock duratec, T9, aluminum flywheel)
    but my driving doesn't match yours.

  10. #10
    Join Date
    Oct 2006
    Location
    Cincinnati
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    Default

    Thx Paul, the combo of SVT and 6sp Caterham transmission seems to create a bit of a unicorn system. And your T9 compatible clutch, etc., definitely doesn't fit. Josh, at the newly reconstituted Rocky Mtn Motorsports/USA Caterham suggested Raceline in the UK. So I contacted them and they are checking their stock, etc. They at least knew exactly what I needed.

    Yes, I am afraid my driving style takes a toll on my car....

    The fact that replacement clutches are a seldom visited issue seems to be another example of how these light weight cars are easy on "consumables" (tires, brakes, etc.).
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Type R, sold
    '19 Miata Clubsport

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