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catylitic converter? 
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Joined: Fri Jul 24, 2020 10:23 am
Posts: 22
Location: Essex
Post catylitic converter?
quick question, does a new build need a catalytic converter if the engine used is post 1992?


Thu Oct 22, 2020 9:41 am
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Joined: Sat Mar 12, 2016 7:05 pm
Posts: 179
Post Re: catylitic converter?
I think you will find it does it goes on engine age
Ian


Thu Oct 22, 2020 12:43 pm
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Joined: Sun Oct 19, 2014 10:10 pm
Posts: 963
Location: Bristol
GTM: Spyder
Post Re: catylitic converter?
There is a grey area between 1992 and 1994 when engines already in production could continue without catalysts so I believe kit cars can treat the cat cut off as 1994.

I was under the impression that if you use a mixture of old and new parts and the used parts are from different donors so you get a Q reg then the emissions are a basic smoke test but not absolutely sure if that applies to ones being tested now.


Thu Oct 22, 2020 1:47 pm
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Joined: Sat Mar 12, 2016 7:05 pm
Posts: 179
Post Re: catylitic converter?
Sanz may well be correct if its a Q plate but think you will still need the cat
Ian


Thu Oct 22, 2020 7:49 pm
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Joined: Wed Aug 11, 2010 9:27 am
Posts: 541
Location: Sheffield
GTM: Libra
Post Re: catylitic converter?
My car was OTR in 2000 with J-reg age plate a 1.4 from said J-reg donor. No cat on donor so none was req'd

When I changed to a 1.8vvc (brand new) a couple or so years later i didn't fit a cat nor was told to by anyone in officialdom. So it has been ever since and all MOTs have used BET no cat test specs.

I read cats were only mandatory 1995ish onwards. There was a few years before that of transition where some had some didn't

Page 46 of the IVA manual has a flow chart https://assets.publishing.service.gov.u ... hicles.pdf

It depends on whether an exact match can be found for the car under test I believe here https://assets.publishing.service.gov.u ... dition.pdf
As GTM Libra is not listed you'll end up with a non cat BET CO<3.5% and HC<1200ppm

All of this will also have a bearing on what road tax band or category you end up in I think.

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2000 GTM Libra 1.8VVC 145BHP


Sat Oct 24, 2020 9:24 pm
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Part built GTM

Joined: Wed Apr 15, 2015 4:52 pm
Posts: 141
Location: Devon
GTM: Libra
Post Re: catylitic converter?
Hi - someone in charge

I cannot write a reply from the Libra pages - so I tried this one and it works
Trying to do a reply on 'window rubbers'

Pete


Thu Nov 26, 2020 4:31 pm
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Joined: Wed Aug 11, 2010 9:27 am
Posts: 541
Location: Sheffield
GTM: Libra
Post Re: catylitic converter?
Happened before, see;

picture-bug-and-replying-to-posts-t4387.html

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2000 GTM Libra 1.8VVC 145BHP


Thu Nov 26, 2020 5:10 pm
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