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Thread: IVA overriders

  1. #1
    Join Date
    Feb 2007
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    Essex, UK
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    IVA overriders

    Do they have to have a closed in back or are rounded edges on the back enough?
    Thanks
    Simon
    WARNING: Translation of author's random thoughts may have resulted in the unintended introduction of grammatical errors, typos, technical inaccuracies, lies, propaganda, rhetoric, blasphemy, rambling, and/or exhibition of shocking levels of ignorance.

  2. #2
    Join Date
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    STOKE ON TRENT, U.K.
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    Hi Simon.
    Rounded edge will be fine.
    Better still, just leave them off. Especially on the front.
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  3. #3
    Join Date
    Nov 2012
    Location
    Lanarks
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    63
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    225
    I’ve NEVER built a car for IVA.
    All my (old) previous Cobra builds had bumpers and overriders fitted.

    It is so easy to circumvent the Rules but I’d like the car
    to be street legal from the get go.

    My question is focussed on the Overriders and how to get them to pass the test

    What I have is a sharp return edge at the rear.
    I presume this is a No No and will result in a fail.

    I am thinking of a making a fibreglass shell for the rear part with
    a large radius that will fill in the hollow to the backside..
    With all the overriders being similar this will entail the making
    of a grp mould or possible vinamold.

    Has anyone fitted covers to the rear or perhaps an edging strip.
    to get their Cobra through the test.


  4. #4
    Join Date
    May 2004
    Location
    Perth
    Posts
    4,593
    As Dave says, why bother fitting them for IVA? You certainly don't need them to be street legal. Back in the day I didn't have them fitted for SVA.

    Cheers, Clive

    (If I'm not here, I'm either in my new workshop or on the golf course!)

  5. #5
    Join Date
    Nov 2012
    Location
    Lanarks
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    Your Hawk looks like the one I built many moons ago - A great kit by the way.

    With a few legal eagles in our family it is BEST to conform
    Imagine losing your shirt because you fitted bumpers that did not comply with the regulations
    ( and some poor soul got hurt with those sharp edges)
    Attached Images Attached Images
    Last edited by drammyboy; 13-01-20 at 04:42 PM.

  6. #6
    Join Date
    Apr 2014
    Location
    Stourport on Severn
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    61
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    251
    I has closed back over riders fitted for my first IVA test at Kidderminster and these failed on radius. This despite being declared IVA safe by Europa. Funnily enough they were not fitted for the second successful test.
    Cheers
    Steve

    My missus asked me to build her a Cobra! – How good is that!

    AK Gen2 chassis arrived 12/2/15 IVA Passed 2/7/18 on road 29/7/18
    http://stevesakcobrabuild.blogspot.com

  7. #7
    Join Date
    Apr 2005
    Location
    Worcestershire
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    Quote Originally Posted by Peaches94 View Post
    I has closed back over riders fitted for my first IVA test at Kidderminster and these failed on radius. This despite being declared IVA safe by Europa. Funnily enough they were not fitted for the second successful test.
    Oh dear, I have them on mine and I’m destined for Kidderminster test station

  8. #8
    Join Date
    Aug 2007
    Location
    Bournemouth
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    222
    I think if I were to build another one I would fit as little as possible. Once on the road, start to fit as you progress with your personal 'theme' for the car. As previously said, a car failed even with 'IVA' friendly equipment fitted. So nothing is guaranteed.
    I agree, we have a sense of duty towards the public and their safety so continue to buy IVA friendly so that the intent is there. No one can argue with that. But fit it afterwards.

    David.
    Life is driving the Cobra. The rest of the time is just waiting.

  9. #9
    Join Date
    Apr 2005
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    Quote Originally Posted by Peaches94 View Post
    I has closed back over riders fitted for my first IVA test at Kidderminster and these failed on radius. This despite being declared IVA safe by Europa. Funnily enough they were not fitted for the second successful test.
    Was that front bumper, back or both?

    I was thinking that the rear edge on the rear bumper wasn't contactable by the sphere?
    Regards

    Craig Perry

    No, I'm not "repairing" it, I'm fine tuning its performance.

  10. #10
    Join Date
    Apr 2014
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    Stourport on Severn
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    Quote Originally Posted by cperry View Post
    Was that front bumper, back or both?

    I was thinking that the rear edge on the rear bumper wasn't contactable by the sphere?
    Hi Craig, I can’t remember if front or rear, but the gauge the tester used was small enough to check both ends.

    ps. If you are off to Kidderminster remember to check seat base to top seat belt anchorage dimensions.
    Cheers
    Steve

    My missus asked me to build her a Cobra! – How good is that!

    AK Gen2 chassis arrived 12/2/15 IVA Passed 2/7/18 on road 29/7/18
    http://stevesakcobrabuild.blogspot.com

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