blakep82
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| posted on 30/6/09 at 11:48 AM |
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mirrors
seen these on the caterham shop
https://www.caterhamparts.co.uk/product_info.php?products_id=1637
i don't think these are good for IVA, but does anyone else know better? i can't find any other styles of mirror on their site, so
i'd be surprised if they weren't ok
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iscmatt
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| posted on 30/6/09 at 11:56 AM |
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hard to tell as it is facing down but i wouldn't have thought the radius of the plastic casing around the mirror would not be big enough?
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blakep82
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| posted on 30/6/09 at 12:00 PM |
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could always stick a bit of edging round trhat, but i was thinking about the size of the glass (i can't make any sense of the rules in the
manual...) i need a mirror with that exact same mounting you see, but i thought the glass on that type of mirror was too small?
[Edited on 30/6/09 by blakep82]
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Vindi_andy
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| posted on 30/6/09 at 12:22 PM |
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What about these
https://www.europaspares.com/prod.asp?product_idx=3940&imgstate=1
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blakep82
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| posted on 30/6/09 at 12:33 PM |
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quote:
Originally posted by Vindi_andy
What about these
https://www.europaspares.com/prod.asp?product_idx=3940&imgstate=1
ah, yeah, now they're the ones i was looking at before on merlin motorsport, but was told they wouldn't pass.
this is the bit i don't understand
quote:
An exterior mirror must be a minimum of 40mm high and 70mm long, and be able to incorporate a measurement parallel to the height of the rectangle at
least 70mm in length within the lens. (see note 2 & figure 1)
SPA mirrors are 113mm long x 52mm high, so thats fine, but incorporate a measurement parallel to the height of the rectangle at least 70mm in length
within the lens?! i can't make sense of that at all 
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IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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andyd
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| posted on 30/6/09 at 12:52 PM |
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They are referring to the reflective area. If you look at Fig 1 they show a rectangle of 40mm x 70mm within an odd shaped mirror.
I'd say if you can get a flat piece of card 40mm x 70mm onto the mirror surface without fouling any edges then it'd pass.
Edit to say: I think they meant perpendicular not parallel in any case. 
[Edited on 30/6/2009 by andyd]
Andy
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blakep82
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| posted on 30/6/09 at 01:24 PM |
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see, i didn't think they meant parallel, but i looked at the old SVA manual to see what that said, and it was the same!
anyway, so whatever shape the mirror is, it has to be able to fit a 40mm high x 70mm wide rectangle on the glass, so there shouldn't be a
problem with SPA mirrors? except maybe projections and edges?
just noticed, SPA do a few different sizes, all should be fine, the ones above are the smallest, i could maybe go for one of the bigger ones as long
as they don't stick out too far 
[Edited on 30/6/09 by blakep82]
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Flamez
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| posted on 30/6/09 at 01:31 PM |
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I doubt those mirrors would meet the criteria of being able to rotate inwards with a force of 10kg
my build mac1motorsports
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blakep82
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| posted on 30/6/09 at 01:49 PM |
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why do you think that?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Flamez
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| posted on 30/6/09 at 02:01 PM |
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quote:
Originally posted by blakep82
why do you think that?
because they are a solid stem with no hinge at the base.
my build mac1motorsports
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blakep82
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| posted on 30/6/09 at 02:05 PM |
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ah, i see, looks like the stem goes right through the mirror and i i mould assume it can turn on it. there seems to be a screw head on the top, maybe
for loosening?
also the base of the stem has a ball joint type swivel mounting
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Flamez
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| posted on 30/6/09 at 02:15 PM |
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The way I read the IVA same as the SVA is that the mirror and stem must be capable of "swinging" into the body of the car if struck by a
force, If there is no swivel at the base how do they achieve it?
my build mac1motorsports
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blakep82
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| posted on 30/6/09 at 02:20 PM |
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there is a swivel at the base, and i think in the body of the mirror also. and with that, it should swing into the window opening of my car, behind
the A pillar.
have a look at some of the photos at the bottom of the page
http://www.pickuptruckracing.com/round-7-8-rockingham.phtml
you'll see where they mount to
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Flamez
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| posted on 30/6/09 at 02:28 PM |
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yes I see now, I hope you get the field of vision from there.
The racing looks cool, is that what you intend to do? if so why are you bothering with iva?
my build mac1motorsports
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blakep82
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| posted on 30/6/09 at 03:19 PM |
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nah, i've got one of their old right hand chassis which can't race now, so its a road one i'm going for.
the mirrors are slightly higher than the back, and i think the back of the cab is very slightly narrower than the front of the cab. i've mocked
it up with an old interior mirrorwhich is the same size and there's a decent view, so should be fine
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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blakep82
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| posted on 30/6/09 at 04:30 PM |
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quote:
Originally posted by Flamez
I doubt those mirrors would meet the criteria of being able to rotate inwards with a force of 10kg
i think, with some careful planning and measurement, that rule may not have to apply
quote:
Except for mirrors fitted to a left hand drive vehicle, or those that do not protrude beyond the extreme outer edge of the vehicle, or every part of
which is above 2000mm; the nearside and offside exterior mirrors must be able to rotate inwards towards the vehicle when a force of 10kg is applied
horizontally at the extreme outer edge from both front and rear, and have an axis of rotation within 50mm of the vehicle surface to which they are
mounted
i think i can just keep them withing the bodywork
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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blakep82
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| posted on 30/6/09 at 08:27 PM |
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ayone thinking of selling? even just one drivers side to see how well they fit?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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