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Thread: IVA overriders

  1. #21
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    The salient point was fitting overriders to pass the current test.

    I do hope someone will be along to provide photos of IVA 'friendly' overriders or explain how they managed to pass with them fitted.
    I note some have mentioned their 'friendly' overriders failed

    It is only a hobby for me.
    Here is young drammyboy building his first Cobra - nearly 40 years ago !
    Attached Images Attached Images

  2. #22
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    Quote Originally Posted by dave View Post
    but these look like they will fail.
    Based on what evidence......a guess

    A smooth transition from chrome overrider to my grp shoe
    Which has a decent ½” radius

    My grp shoe is located by the two stainless tubes and will
    be painted and siliconed into position.

    Now – look at the photos and decide which WILL pass the test
    The teenie wennie radius on the closed back items or my idea






    Last edited by drammyboy; 23-01-20 at 11:49 AM.

  3. #23
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    Quote Originally Posted by drammyboy View Post
    Based on what evidence......a guess

    A smooth transition from chrome overrider to my grp shoe
    Which has a decent ½” radius

    My grp shoe is located by the two stainless tubes and will
    be painted and siliconed into position.

    Now – look at the photos and decide which WILL pass the test
    The teenie wennie radius on the closed back items or my idea






    It’s an educated guess by a very experienced pro builder that has lost count of the number of IVA or SVA tests that he’s been through. My uneducated eye thinks the same.

    Just as a point of feedback for you.....You’ve obviously got some great idea’s and are happy to share them (for that we thank you), however you might want to re-read some of your posts/responses, you come across as confrontational and smug fairly consistently (you may not mean it, but that’s how it reads).

    Rgds

    Jim
    GD Mk3 Jag based
    Supercharged LS1
    GD J1M

  4. #24
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    Jim - I seem to have offended you and for that I appologise.
    It takes all sorts to make a world so bend a little with the wind

    Now
    You have agreed with the experienced professional builder
    I note he advocates fitting the bumpers AFTER the test
    And I presume from your support of him you agree 100% with that position.

    You and he have only given ‘I think’ as an answer to dismiss
    my idea of having a shoe fitted to the overrider.
    I am sure there are others with a similar design engineering backgound that
    Could give a well reasoned answer as to why my idea will not work.

    Jim
    I am not experienced at building a Cobra to pass the IVA test
    I have built several only as a hobby but this will be my first to sit the test.


    Do you consider conforming to the regulations is paramount or just an aspiration ?
    Would you also recommend fitting just a fibreglass seat shell or remove the seat cushion as a means to get a pass OK with the upper seat belt anchorage point.

    What I am trying to do is follow the Rules - the regulations
    Is that a problem?
    Should I follow the leader or at least try to see if I can find a way to have them fitted for the test.

    I presume you have read the posts where another owner mentioned his IVA 'friendly' bumpers failed the test.

  5. #25
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    Your idea is sound, and probably fine, the advice was to check that the transition from metal to fiberglass doesn’t have a sharp edge - that’s all.

    I don’t subscribe to leaving things off or removing post test either, but then I also don’t follow the originality OCD bug either (which makes it easier), my car is still “as tested” (engine excepted, but that followed 5 years post test and is correctly documented).

    Jim
    GD Mk3 Jag based
    Supercharged LS1
    GD J1M

  6. #26
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    Drammyboy, let's be realistic, there are certain things (seatbelts/brakes/steering etc) which are absolutely safety critical and the rules must be strictly adhered to, but if you hit someone or something with a overrider it makes not a jot of difference if it has a 5mm or 2mm radius, overriders and nudge bars are style choices not an integral part of the car structure therefore why make life difficult for yourself, leave them off and fit after the test,
    Last edited by rpm015; 23-01-20 at 08:40 PM.

  7. #27
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    I would suggest that one possible point of view is to assess if something would pass a future mot test.
    For instance, wooden steering wheels are not permitted at IVA but would not be an MOT failure in the future as things are.
    Likewise, wheel spinners would not be a problem at MOT.
    However, ineffective wipers, washers and demisting certainly should get picked up at mot as should brake and steering effectiveness.

    Some things on the IVA are absolutely essential and effectively administered. Other things are regulation for regulations sake.

    All told the system allows us to continue to build ‘special’ cars which can only be a good thing and somewhat more free than other countries have.

    Over riders, quick jacks, nothing. Who really cares?
    Effective brakes, Steering, seats and belts. I think the answer is plain.

    A
    A S motorsport Ltd. 01379 688356 mob; 07909531816 web; asmotorsport.co.uk email \"andrewsoar@yahoo.com\"

  8. #28
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    Now we are getting somewhere with fair impartial comment.
    (within 7 hours)
    My shoe idea has become ‘sound’ and ‘probably fine.’

    I would NEVER tell someone to cheat the system
    Ie- fit bumpers and Seat upholstery after the test

    Imagine spending £££ big and getting a tug to resit the test.

    I agree…..what is the difference with 5mm or 2mm or any dimension
    The point being is we have IVA standards that we must meet.
    Oh…..that tyre you have is below 3mm so what – who cares !
    We have those regulations in place for a purpose.

    I know, I know - don’t shoot the messenger

    I was out last night in the garage with the wife, a spirit level, a 136x53 block
    and a measuring tape…..a kind of steel Rule !
    Checking the Min Height requirement for my super cheap but cumfy seats
    with the upper eye bolt position
    And do you know what ……?

  9. #29
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    Kind of missed my point re the overriders but whatever...

  10. #30
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    Quote Originally Posted by rpm015 View Post
    Drammyboy, ....certain things.... are absolutely safety critical and the rules must be strictly adhered ....nudge bars are style choices...leave them off and fit after the test,
    So...we only adhere to the absolutely safety critical Rules and use all our ingenuity to circumvent others we consider superfluous.

    Don't think IVA examiner with his tick sheet will go along with this.

    Why make life difficult when there might well be a solution to the overrider problem
    and you can have confidence when the time comes to sell on that IVA compliant car.


    No - Problems are there to be solved.

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