Does Cloth or Tarpaulin count as exterior surface IVA test?
Does Cloth or Tarpaulin count as exterior surface IVA test?
Author
Discussion

Music Guy123

Original Poster:

37 posts

140 months

Thursday 5th June 2014
quotequote all
This may sound a bit odd, but I'm trying to get my car through the IVA, my car is frame based/open (it's actually a UVA fugitive). However, it doesn't have any panelling etc, and I'd rather not spend the money on aluminium sheet to cover the whole car as it'll be very expensive and time consuming! So my thought was to cover the car with a different material. Plywood is one option I guess but it's not that cheap, my thoght was what if I used tarpaulin? I have plenty spare and could like pull it tight and put some bolts through it with metal eyes so it doesn't tear the fabric? Or will the tester just not count it as an exterior surface or count it as too temporary?

Would be interested to hear your thoughts.

All the best smile.

cold thursday

341 posts

149 months

Thursday 5th June 2014
quotequote all
Tarpaulin ? rofl Reminded me of this classic.


The original thread is here :- http://www.barryboys.co.uk/phpBB2/viewtopic.php?p=...

Edited by cold thursday on Friday 6th June 00:31

Music Guy123

Original Poster:

37 posts

140 months

Thursday 5th June 2014
quotequote all
Hmm...yeh, the more I think about it, the more I think it's just going to be stupid, even if it's just for the test!

MDF probably isn't too expensive either, all it needs is a bit of sand paper and filler to get it radiused, think that might be a better solution!

Ah well, as you can probably tell...just thinking aloud here!

Oh and I thought I'd seen horrible cars before lol!

iva cosworth

44,044 posts

184 months

Thursday 5th June 2014
quotequote all
MDF and Plywood are both available in flexible sheets that can bend all the way to make a circle

if necessary.

BUT.

Do you really want to cover a car with either of those ?

Music Guy123

Original Poster:

37 posts

140 months

Thursday 5th June 2014
quotequote all
Nope I don't want to cover them in either to be really honest! I want the car to stay in it's current open frame form. However, it becomes a nightmare to leave it open for an IVA as everything less than 20cm from the edge has to be radiused I believe. Much easier to spend £30 on material and cover everywhere for the test I thought?

However, I'm really open to any opinions on what the best thing to do is smile.

Cheers for the help, all the best.

P.S. Apologies for originally posting in the wrong section of the forum, didn't spot this one...sorry!

cold thursday

341 posts

149 months

Friday 6th June 2014
quotequote all
Put up a pic of the car.

kev b

2,755 posts

187 months

Friday 6th June 2014
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1930s Bentleys and plenty of other cars of that ilk had fabric bodies, often by Weymann IIRC.

Could you use stitched linen and dope it taut like a vintage aeroplane? It was good enough for 350 mph on a Hurricane so should stand up to car speeds.

vx220

2,718 posts

255 months

Friday 6th June 2014
quotequote all
cold thursday said:
Put up a pic of the car.
Yeah, PICS!

I always loved the road-biased UVA Fugitive with the Can-Am bodywork, off to google now!

ugg10

681 posts

238 months

Friday 6th June 2014
quotequote all
vx220 said:
Yeah, PICS!

I always loved the road-biased UVA Fugitive with the Can-Am bodywork, off to google now!
Agreed, the kit car mag article (c1985?) about the rover v8engined fugitive f3 is etched in my memory.

gtmdriver

333 posts

194 months

Friday 6th June 2014
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Do you actually need to cover it?

Some of the modern kits such as the Atom and the MEV are IVA'd with just the bare frame showing.

Steve_D

13,801 posts

279 months

Friday 6th June 2014
quotequote all
gtmdriver said:
Do you actually need to cover it?

Some of the modern kits such as the Atom and the MEV are IVA'd with just the bare frame showing.
If the frame is open the tester can pass the 150mm sphere through the frame until it touches something which then has to have a 2.5mm radius. Dealing with all these contact points will become tiresome.
Rather than cover it add some vertical or horizontal bars less than 150mm apart so the test sphere cannot pass through.

If the principle is that the body skin will prevent parts of a pedestrian coming into contact with sharp edges then I doubt the tester would accept canvas as being strong enough.

Steve

Music Guy123

Original Poster:

37 posts

140 months

Friday 6th June 2014
quotequote all
Thanks for all the advice guys smile. The fugitive with the Can-Am bodywork and mid-engine V8 is a F33, I've got the standard UVA Fugitive 2.

This isn't mine but I'm struggling to get a photo of mine up atm but the concept is the same:

http://i5.ifrm.com/2199/133/upload/p4477194.jpg

What Steve D said is exactly why I am trying to cover it. Although, I'll check again this evening but I thought it was a 100mm sphere? So my original thinking was to put a grid in but that would be a huge effort with aluminium or something and I'd have to make sure all the radiuses were good. My next thought was to use string to form a netting of some sort, but it does state in the manual that any 'mesh' if not rigid doesn't count as an exterior surface. And it specifically states that Chicken wire doesn't count either, has to be an 'automotive mesh' or something. I'm thinking thin MDF and a big pot of filler might be the way to go. Also, I believe the radius thing only counts within 200mm from the outer edge of the car?

Steve_D

13,801 posts

279 months

Friday 6th June 2014
quotequote all
Sorry, yes 100mm and no further into the interior than 200mm.

Steve

blitzracing

6,417 posts

241 months

Saturday 7th June 2014
quotequote all
Id think the answer would be to cover all the frame with masking tape- then make a neat job of putting your tarpaulin over the areas you need, then paint it with glassfibre resin to make it set rigid. As long as you use enough masking tape it should not stick permanently to anything.

Justaredbadge

37,069 posts

209 months

Saturday 7th June 2014
quotequote all
What about cable tieing grill mesh in to the apertures big enough to need filling.

Quick, easy, temporary, a known quantity for the vosa bod.

It won't look very professional, but it can come off after the test.

Music Guy123

Original Poster:

37 posts

140 months

Saturday 7th June 2014
quotequote all
Some interesting ideas there! Never used glassfibre resin before, so don't really know what I'm doing, sounds like an option though!

As for the grill mesh, what sort of mesh are you talking about? Because this could potentially provide a couple of problems with regards to it not classifying as an external surface? Also, I need to ensure that every edge (providing the gaps are over 40mm) has a radius of 2.5mm...which could be quite tedious!

Here is what the M1 says:

"Mesh is only considered to provide an external surface if it is made of a rigid material and is of a type utilised in the automotive industry, mesh that is typically used in the construction industry is not acceptable i.e. chicken fencing."

I'm interested in what you mean though, but is it possible you could you kind of explain a little more? and yes, quick easy and temporary is fine...it'll look terrible but I can live with that lol!

Cheers for the suggestions guys, much appreciated, plz keep them coming biggrin

AdiT

1,025 posts

178 months

Saturday 7th June 2014
quotequote all
Think he means this sort of stuff.... http://www.halfords.com/webapp/wcs/stores/servlet/...

I've seen that on MEV's that have gone through IVA around the engine area. I assume it's the engine/mechanical areas you're concerned about; The cockpit area has to meet internal radius requirements anyway.
Another alternative could be perspex/lexan sheet. Thin stuff is available at B+Q in quite big sheets and could be tied in place (worth checking with VOSA that zip-tied is OK).

rdodger

1,088 posts

224 months

Saturday 7th June 2014
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B&Q lexan sheet held with rubber lined P clips would do it.

Music Guy123

Original Poster:

37 posts

140 months

Saturday 7th June 2014
quotequote all
That looks like some interesting stuff, far too expensive from Halfrauds though, will see if I can find some cheaper though!

I'm looking to cover the body in the same ways this UVA Fugitive is covered, i.e. the lower part of the cockpit and the front end:

http://cdn.images.pistonheads.com/aimg/1836/183606...

Not gonna bother giving it a windscreen etc!

Music Guy123

Original Poster:

37 posts

140 months

Saturday 7th June 2014
quotequote all
Oh and this another extract from the M1 Manual:

"Items such as covers unless specifically designed for the purpose (rubber or otherwise) that are held in place by being stretched on, or attached by double sided tape or other inadequate means, rubber hosing, pipe lagging etc are not considered acceptable methods or materials. This not an exhaustive list but provided as guidance as to the type of item considered to be unacceptable."