Is it a kitcar
Author
Discussion

ColinM50

Original Poster:

2,685 posts

197 months

Thursday 6th December 2012
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Watched a re-run of Mark Evans building an MGB and jolly good it is too. If you've not seen any of his ".... is born" series, then he takes a car/bike/plkane/helicopter and builds it in a few progs. All good fun intersepersed with interviews with other like minded folk.

Anyway, in this prog they interviewed a chap who'd totally restored a V8 MGB. New heritage bodyshell, new Chevy V8 engine and box, new interiopr, hood, bumpers and new just about everything> he was really proud of his brand new tax exempt 1967 MGB V8

So why isn't that a kitcar and subject to IVA test like the rest of us? As I see it all he's used off the original is the VIN number. Does that seem right to you?

Furyblade_Lee

4,114 posts

246 months

Thursday 6th December 2012
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I think if you use a genuine heritage bodyshell you are allowed to keep the original identity. And long may it continue. Would be nice to have an engineers report though

chalkey

89 posts

163 months

Thursday 6th December 2012
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he would have used the donor mgb's id and just made what he wanted out of it

i sell mg bodyshells its quite common to do

rdodger

1,088 posts

225 months

Thursday 6th December 2012
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Aren't the rules that if the chassis/ monocoque is replaced with an identical one everything is fine?

MJG280

723 posts

281 months

Thursday 6th December 2012
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The change of engine and gearbox means it should have an IVA test. This might be picked up at an MOT if the garage reports the changes.

vtechead

30 posts

159 months

Thursday 6th December 2012
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MJG280 said:
The change of engine and gearbox means it should have an IVA test. This might be picked up at an MOT if the garage reports the changes.
No it doesn't, only changes to the chassis itself require an iva.

vtechead

30 posts

159 months

Thursday 6th December 2012
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MJG280 said:
The change of engine and gearbox means it should have an IVA test. This might be picked up at an MOT if the garage reports the changes.
No it doesn't, only changes to the chassis itself require an iva.

Steffan

10,362 posts

250 months

Thursday 6th December 2012
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This is a vexed question. I think it is a loophole exploited regularly.

Since the chassis in its entirety has been changed and the drivetrain and the engine with a massive increase in power common sense suggests it should require testing. Technically I do not think it does. Consequence of poor legislation.

With this many changes it would seem that safety would require a specific inspection. It would seem in these cases,however, it is not.

Crafty_

13,830 posts

222 months

Thursday 6th December 2012
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IIRC there is a 12 point rule. I forget the allocations but you get points for the original engine/chassis/steering/axles. Replacement parts as per manufacturer spec are ok, so if you buy a recon steering rack thats fine.
An engine change alone isn't enough to trigger a problem.
Change the engine, rear axle and modify the chassis and you may well be in trouble..

Same thing happens with E Types, you can get new shells etc for those too.

Steffan

10,362 posts

250 months

Thursday 6th December 2012
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Crafty_ said:
IIRC there is a 12 point rule. I forget the allocations but you get points for the original engine/chassis/steering/axles. Replacement parts as per manufacturer spec are ok, so if you buy a recon steering rack thats fine.
An engine change alone isn't enough to trigger a problem.
Change the engine, rear axle and modify the chassis and you may well be in trouble..
Same thing happens with E Types, you can get new shells etc for those too.
You are absolutely right. But I doubt that any of these changes in Etypes or
MGB's or Triumphs or any other classic car actually involved IVA or even an inspection.

It is a loophole: the car contains virtually no original major parts and a completely new chassis. It is de facto not the original car.

PAUL500

3,168 posts

268 months

Friday 7th December 2012
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Usual grey area. If the items were replaced individually over a period of time for new/uprated parts then no issue, if they are replaced all in one go then its a different argument, but the end result would still be exactly the same finished car.

Frankthered

1,667 posts

202 months

Wednesday 12th December 2012
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This is definitely a grey area, isn't it. As Paul said, if the items were replaced individually, over a long period of time then I don't think there would be an issue. The car would be a bit of a "Trigger's Broom" but that sholdn't be a problem.

Replacing the bodyshell with one of an identical design shouldn't be an issue either, IMHO.

The guidance on IVA states that IVA is required if the chassis is modified or replaced with one of different design. In effect with a new Heritage shell, the design is unmodified so I believe it should be fine.

The change of interior, hood, bumpers etc wouldn't really impact on the chassis, so I reckon that's all fine too.

The problem with the example quoted comes with the change of drivetrain. I would expect that some modification would be required to accommodate a V8 and matching gearbox - I could be wrong though, if it could be done just by changing engine mounts, or possibly by adding or removing bolted on brackets, you might (and I stress, might) get away with it.

The other thing to bear in mind though is that these shows are a few years old now - maybe this one got through before the DVLA was so stringent about enforing this.

I was always a bit surprised that, on the original "A Car is Born" series when he built the Sumo, he got away with the manufacturers declaration of top speed as 120 mph. This is in spite of him ditching the 2.0l Pinto from the Sierra in favour of a shiny new V8!! (Was it a Chevy?)

I'd have been disappointed if that would only do 120!!!

FlossyThePig

4,138 posts

265 months

Wednesday 12th December 2012
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Frankthered said:
I was always a bit surprised that, on the original "A Car is Born" series when he built the Sumo, he got away with the manufacturers declaration of top speed as 120 mph. This is in spite of him ditching the 2.0l Pinto from the Sierra in favour of a shiny new V8!! (Was it a Chevy?)
Tut, tut, tut!

If the gearbox and differential have the same ratios as the original the speed at 5000 rpm in top will be the same whatever the size of engine. It's just how long it takes to get to the speed that will be different.

Frankthered

1,667 posts

202 months

Wednesday 12th December 2012
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FlossyThePig said:
Frankthered said:
I was always a bit surprised that, on the original "A Car is Born" series when he built the Sumo, he got away with the manufacturers declaration of top speed as 120 mph. This is in spite of him ditching the 2.0l Pinto from the Sierra in favour of a shiny new V8!! (Was it a Chevy?)
Tut, tut, tut!

If the gearbox and differential have the same ratios as the original the speed at 5000 rpm in top will be the same whatever the size of engine. It's just how long it takes to get to the speed that will be different.
You do have a point there, but I didn't mention (and don't recall) what he did with the gearbox and diff. He might have kept them the same, but I don't think I would if it were my car.

one eyed mick

1,189 posts

183 months

Thursday 13th December 2012
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wouldn't like to put chevy grunt through a type 9!!!

Mr2Mike

20,143 posts

277 months

Friday 14th December 2012
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FlossyThePig said:
Tut, tut, tut!

If the gearbox and differential have the same ratios as the original the speed at 5000 rpm in top will be the same whatever the size of engine. It's just how long it takes to get to the speed that will be different.
Even assuming the same gear ratios were used (which is most unlikely), just because a car is geared for a certain theoretical speed in top, doesn't mean it can actually reach it.

PaulKemp

979 posts

167 months

Monday 17th December 2012
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The declared top speed for IVA is only to check that the tyres have the correct speed rating
Nothing else
Declared power at whatever revs is only used to calculate the revs at which the sound check is done
Nothing else

Rebody of original car is usualy ok as the original manufacturer got type approval
Totally replacing the running gear could be considered a breach however the points system means you could easily replace the engine and still retain the reg, steering, brakes, axels, suspention all add up, gearboxes don't have numbers so the only truly identifiable part is the engine

ChrisJ.

610 posts

262 months

Monday 17th December 2012
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Steffan said:
You are absolutely right. But I doubt that any of these changes in Etypes or
MGB's or Triumphs or any other classic car actually involved IVA or even an inspection.

It is a loophole: the car contains virtually no original major parts and a completely new chassis. It is de facto not the original car.
Exactly, and it's the same for Mk1 and Mk2 Escorts with group 4 bodyshell modifications, and the like.

tr7v8

7,524 posts

250 months

Monday 17th December 2012
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rdodger said:
Aren't the rules that if the chassis/ monocoque is replaced with an identical one everything is fine?
Obviously as cars get reshelled sometimes as part of accident repairs. You'd hardly want your shopping trolley to have to be IVA'd after that would you?
As for the engineers report he'd almost certainly need one for insurance or as part of a valuation anyway.