32 replies to this topic

[ninham]

I have fitted a stage one kit to my girlfriends mini.

Its a 1994 Mini 35 1275 carb (originally had a CAT).

 

When it comes to mot time will the car pass the mot.

We had it on a rolling road and all tuned up to 63bhp. (drives lovely now)

 

I have had a look at many forum links and the MOT test regulations online and it says you cant test the car on a cat emissions test because it don't have one.

 

You need to mach the VIN number up to the analyser database to check to see which specs it comes under.

I have looked at the post on here in the injected sub forum and our vin number don't correspond to the ones it could match to, so does that mean it has to be tested under the non CAT test?

 

I believe my engine code is "D" in the vin number.

 

Sorry if i haven't made much sense, just want to know if it should pass ok or will i have to refit the CAT for MOT?

[Anthony30]

It's 94 car, I'm 99% sure it was standard fit on all cars by law at that time, can't remember the exact year to be honest. Don't bother removing the cat, it will be difficult to get it through the MOT, unless you fit it just before, then remove it.  

[MrBounce]

My friend has a 35 with a stage 1 kit. His MOT test centre has no problem with the cat being removed. Apparently it's something to do with the cat test not being compatible with carbs.

[ninham]

My friend has a 35 with a stage 1 kit. His MOT test centre has no problem with the cat being removed. Apparently it's something to do with the cat test not being compatible with carbs.

 

That is what i was thinking, with all injected you need to have one unless it pass's which it more than likely wont.

 

Her car isn't in the analyser database or the In-Service Emissions book, from what i have read so far. This means it has to to have a beta test or a non cat test as there is no cat present.

[Anthony30]

It's the same test, just that the level to pass is lower on cars fitted with a cat, SPI, MPI. On some car It's visual check only, due the the year of manufacture.  I think the limit on my 89 is 3.5% co.

[ninham]

It's 94 car, I'm 99% sure it was standard fit on all cars by law at that time, can't remember the exact year to be honest. Don't bother removing the cat, it will be difficult to get it through the MOT, unless you fit it just before, then remove it.  

Its all been removed. As the stage one didn't come with all the extra link pipes and de cat pipe as that would of cost like an extra 100 or something

[ninham]

It's the same test, just that the level to pass is lower on cars fitted with a cat, SPI, MPI. On some car It's visual check only, due the the year of manufacture.  I think the limit on my 89 is 3.5% co.

Yer

 

believe this is correct (thanks to turbo minis)

 

All vehicles Pre 1st August 1975 - Visual Only 

All vehicles Post 31st July 1975, Pre 1st August 1986 - less than 4.5%CO and less than 1200ppm HC 

All Vehicles Post 31st July 1986, Pre 1st August 1992 - less than 3.5%CO and less than 1200ppm HC 

 

(this is where it gets complicated) 
All vehicles Post July 31st 1992 Pre 1st August 1995 - 'BET test'. Natural idle - less than 0.3%CO. Fast idle - less than 0.2%CO, Less than 200ppm HC, between 0.97 and 1.03 Lambda. 

If the emissions result from the 'BET test' is a fail, the Tester must then look for vehicle specific data and carry out a 'CAT test' or 'Non CAT' test depending on the available data as explained in the next paragraph. (Chances are any Mini will fail the 'BET test' especially without a catalytic converter) 

All Vehicles Post 31st July 1992, pre 1st August 1995 - 'CAT test' - Can the Tester find an exact match in the analyser database or the In-Service Emissions book? 

Edited by ninham, 02 August 2015 - 10:05 PM.

[Anthony30]

And technically, your not allowed to remove and emissions control devise. It's all a PITA really, but the government insist in poking us with a stick every now and again to annoy us.

[ninham]

They do indeed.

Like DPF (what a load of kack they are.)

 

Wont be buying a new diesel ever.

[Anthony30]

Just read your original post, and it's running a carb, so just lean the mixture out at the MOT station slightly to pass the MOT. It won't run that well, but it's only to pass the test. Always works for me. Just don't lean it off too much or you WILL cause damage.

[ninham]

My girlfriend is the one worrying not me lol.

just wanted to make sure i was reading it all correctly.

 

Yer i could change the mixture. but how much to turn it and which way.

[Anthony30]

They do indeed.

Like DPF (what a load of kack they are.)

 

Wont be buying a new diesel ever.

Yep. I've already sold the one off the BMW via Ebay, and bought an ecotune downpipe. Still got the main cats, but if they fail, I will just get pieces and pipe made, and weld it in.  Diesels are easier though, they are only tested on PPM.

[ninham]

I will stick with my 1991 mayfair and skoda felicia much better cars 

[Anthony30]

You would need a portable exhaust co machine/tester.  I suspect you  might have a HIF carb. I have no experience with these, but with the HS4 carbs you just turn the big nut underneath the carb body. If your standing in front of the car, anti-clockwise should be to lean the mixture.

[Anthony30]

I will stick with my 1991 mayfair and skoda felicia much better cars 

Not been in a decent e46 330d saloon, obviously.   Faster, and more comfortable than a golf, sorry Skoda.