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Thread: WTB: FIA Rollbar

  1. #11
    Join Date
    Jul 2007
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    Parker, CO
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    I received some info from Josh @ Rocky Mountain Caterham last night:

    ...the "Standard" trackday bar is more versatile and accommodates taller folk a little better. For pure track use, sloping one pairs better with a Petty strut, a la the older imperial FIA bars.
    Thomas Jordan
    2008 R400 Superlight

  2. #12
    Join Date
    May 2018
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    Albany, NY
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    It appears we are talking about slope towards the middle of the car on the vertical sides. If that's the case then yes older FIA were vertical that could accept Petty strut, new ones are "sloping in" with a more of a cone shape.

    I believe their height is the same, as well as the "rake/slope" towards the front of the car.
    2001 Caterham Superlight R

  3. #13
    Join Date
    Jul 2007
    Location
    Parker, CO
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    Quote Originally Posted by Vovchandr View Post
    It appears we are talking about slope towards the middle of the car on the vertical sides. If that's the case then yes older FIA were vertical that could accept Petty strut, new ones are "sloping in" with a more of a cone shape.

    I believe their height is the same, as well as the "rake/slope" towards the front of the car.
    I think you might be on to something here. I found some photos that may agree with that.

    Straight:
    Name:  straight.jpg
Views: 57
Size:  73.0 KB

    Sloping:
    Name:  sloping.jpg
Views: 54
Size:  46.1 KB
    Thomas Jordan
    2008 R400 Superlight

  4. #14
    Join Date
    Feb 2010
    Posts
    205

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    We offer the two Caterham rollbars:
    1) Standard rollbar - this does not have diagonal bracing, has a larger diameter tube (1.75"), and is vertically oriented
    2) FIA "track-day" rollbar - this has diagonal bracing, provisions for a support strut (aka "Petty bar"), and smaller diameter tubing (1.5"). It also has additional mounting provisions through the indexing "pockets" in the chassis. Indeed, this roll-bar does "slope" forward, when viewed from the side.

    Imperial rollbars will not mate with metric cars, and new metric rollbars will not mate to imperial chassis.

    -Bruce
    Beachman Racing
    Authorized Caterham Cars dealer

  5. #15
    Join Date
    Jul 2007
    Location
    Parker, CO
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    Thanks Bruce.

    In a bit of a plot twist, Caterham responded and said both parts are the same bar, and the only difference is whether or not it comes with the 'fixings kit'. Seems like they need to standardize on their naming and photos, and add some descriptions.
    Thomas Jordan
    2008 R400 Superlight

  6. #16
    Join Date
    May 2018
    Location
    Albany, NY
    Posts
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    To put pictures to this discussion and hopefully get everybody on the same page I'll reference the guys for whom it's very important to know what cage you have and what has been ever offered, to get right product/fit for customer

    SBF7's


    https://www.softbitsshop.co.uk/cater...tions-12-w.asp

    All listed in the link with pictures
    2001 Caterham Superlight R

  7. #17
    Join Date
    Apr 2016
    Location
    Cary, NC
    Posts
    34

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    Does anyone know if, besides the x bracing and additional drilled holes, these bars are different from the standard bars. In other words, will welding the x bracing into the standard bar, using the same size DOM tubing, be the same strength as the FIA/track day bar?
    Joel Hoffman

  8. #18
    Join Date
    Oct 2006
    Location
    Cincinnati
    Posts
    3,635

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    Lotsats: I don't think so. Based on my ever worsening "memory": the Caterham FIA bar weighs 31 lbs, the standard bar weighs 11 lbs. I weighed both on my bathroom scale many years ago. So, it is much stouter than the stock bar. An occasion where adding lightness is not a good thing. A knowledgeable Caterham pro once analogized the protection provided by the stock bar to being similar to that afforded by a Kleenex box....

    This was for a '97 Caterham, so its very possible that the current "stock" roll-over bar is far superior to the flimsy unit offered in '97?
    Last edited by Kitcat; 12-04-2019 at 02:00 PM.
    Kitcat:AKA, Sir Spinsalot
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car
    '19 Honda Civic, Type-R

  9. #19
    Join Date
    Jul 2007
    Location
    Parker, CO
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    The FIA bar is definitely a different beast. IIRC, smaller diameter tubing and thicker walls.
    Thomas Jordan
    2008 R400 Superlight

  10. #20
    Join Date
    Feb 2009
    Location
    NYC
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    4,564

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    Quote Originally Posted by Kitcat View Post
    ...so its very possible that the current "stock" roll-over bar is far superior to the flimsy unit offered in '97?
    Sadly no. A driving instructor described it as the metal equivalent of a cardboard tube in a chat earlier this year. So clearly no improvement over 1997.


    Also interesting to note, that the original options included an FIA bar. Looking at a 2019 420R order form with option list today it is:
    - standard
    - "track day roll bar"
    - roll cage

    The FIA option no longer considers a roll bar adequate. You have to be in roll cage territory to get any FIA label.
    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

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