leeby

hi guys the last car i built was a turbo powered focus which is now long gone, but i am now building a mk5/6 02-08 fiesta and im going to put a 2.0 zetec on bike carbs running nodiz etc, will be doing a wiretuck and removing abs, airbag and full engine loom ecu etc so will be a bare except lights loom

the only issues im not sure about is mot time, because itll be running carbs (im going to have a cat and decat made)
but what are the legalities regarding carbs for mot time ??, obviously dvla will be notified about engine swap etc

im using zetec as if it goes bang ill scrap it and use another where as the duratecs are apparently quite weak on bottom ends and are still pricy

also has anyone done a mk5/6 engine conversion ??

gcfcos

If the vehicle has had an engine conversion from an older vehicle and it can be proved from which vehicle it came from then the emissions are tested from the age of the transplanted engine. I found this when I motd a Vauxhall frontera which had an old red top 16v from an Astra gte fitted. I tested it as if it were an e reg Astra gte

studabear

It will need to have a cat fitted, it will need to meet 0.30 CO or less fast idle 200ppm HC at fast idle lambda between 0.97-1.03 and from memory 0.50 CO at idle.
(Can't ever remember a zetec that didn't have a cat.)

Other wise its gonna be a dodgy mot.

xr2john

I had a j reg 5 door 1.8 16v in aporto red which was a dark redy burgundy colour back in the day and that never had a cat. My mate had it before me and put on morrettes and nomad tail lights and a few other bits then I ended up with it from someone else costing less than £100 and traded it in a year later and got £1500 for it

Anyway my point is there was zetecs without the cat

It's Czech Mate

Just get an mot friendly map for the mot

No car requires a Cat to Skoda2010, even a brand new one

It just has to Pass the relevant test.......

studabear

A cat missing that was fitted from the factory is a reason for rejection though. Don't let me convince you though, I've only been doing mot's for 16 years.

studabear

Also how do you get a MOT friendly map when the op wants to run carbs?

stevieturbo

Bollox...it is a legal requirement for both MOT and Construction and Use bullshit.

And an MOT friendly map for a carb equipped car that legally is supposed to have a cat and pass a cat based MOT ? lol.

gcfcos

Just bring it to me for the mot lol

It's Czech Mate

Done it many times. Carb kits with mappable ignition used to be fairly common, certainly in the kit car world, Webber alpha gold on a zetec fittment for example. The car only has to Pass the emissions test relevant to its age.

stevieturbo

You cannot map carbs...which more than anything else will relate to emissions.

And is quite clear in this case....this vehicle needs a cat to pass any legit MOT.

gcfcos

I took this from mot computer at work.

gcfcos

If your fitting a 2.0 Zetec I'd imagine it's out of a car post 1992? Whereas that would need a catalytic converter fitted and pass a cat emissions test

stevieturbo

Exactly.

It's Czech Mate

You can map ignition, and that tiny print by gfcos only mentions passing the right emissions test. I've never seen anything stating any car needs the cat fitted. I haven't taken a car without one for a test since 2011 but don't think anything has changed since then.



To add to that, it's a struggle and I don't think the op will get through a test.
However there are plenty of carbed zetecs running round with mots and no cat, they can't all be bent, and mine wasn't.
I still haven't seen anything telling us that a cat needs fitting either

Oh and Construction and Use only requires you to Pass the relevant roadside emissions test also

It's Czech Mate

I have checked the latest testers manual https://www.gov.uk/government/public...and-7-vehicles


It appears to have changed since I last presented such a vehicle ( decatted but able to pass the test ) There is now a visual check 7.1.3 which is new, you can see the black lines saying so, so yes it should be failed ( god knows why if it passes the test )


However this is not supported by this https://www.gov.uk/government/upload...th-edition.pdf


Which makes no mention of actually having to have the cat fitted where one is expected, just having to pass the test, as it used to be.

It's Czech Mate

That is the case now so it seems, see my post above this one, but it hasn't always been the case, this has changed since 2011?

studabear

Yeah it hasn't always been that way, but things are continually changing.

gcfcos

Seems to almost be on a weekly basis these days lol.

stevieturbo

Nothing regarding the legal requirement for a cat to be fitted has changed for at least a decade....or much much longer.
It is a legal requirement since 1992 ( age appropriate vehicles of course )....and that hasnt changed.

And again, construction and use regs dictate it.

And just because a car as an MOT cert...means sweet FA, even more so over there. I've bought cars before with fresh MOT's, that wouldnt have a hope in hell of passing any legit MOT.

It's Czech Mate

Your not right I'm afraid, the visual confirmation of it being fitted is new (well since 2010/11), I've even provided the link to the .gov document that confirms its 'new'

The other document I provided is the basis for C&U and there is also no mention of visual confirmation of fittment in that, only the test the car must Pass.

I'll stand corrected on C&U if anyone can be bothered to show the document and quote the relevant section like I have proved with the MOT links above

stevieturbo

The more I hear about mainland MOT's...the more I'm amazed any car might ever fail.

Adder

What a waste of a good engine

gcfcos

Yeah I thought that when he brought it in lol

leeby

ill have cat fitted but ill have a decat as well for when not needed, so what would i have to do for emissions ??

how do kitcars get around the issue ??

stevieturbo

Depends on the kit car and what donor it was built from...and what the new vehicle is deemed to be.

If all new, then it would need to pass the relevant IVA and pass all emissions test and be fitted with age appropriate emissions gear.

Afterwards...many probably get a dodgy MOT same as everyone else it seems from this thread

gcfcos

Yes this is correct. For older kit cars etc;