Jenko
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| posted on 7/9/12 at 07:11 AM |
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CATS and IVA.
Apologies, I'm sure it's been asked many times before.....Do you have to have a CAT for IVA or can you map a car around it?.
Not started a build yet, but will be soon (hopfully if I sell my Westfield).
MY BLOG - http://westfieldv8.blogspot.co.uk/
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deezee
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| posted on 7/9/12 at 07:25 AM |
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Depends on the age of the engine. If you have a post '94 engine, they normally struggle to meet the stricter emissions. BUT to answer your
question, the engine needs to meet emissions for the IVA. Whether you do that through mapping or through a CAT is up to you.
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40inches
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| posted on 7/9/12 at 07:26 AM |
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As far as I know, you have to pass at the emissions set for the year of manufacture of the engine, as long as you meet these it doesn't
matter if you have a cat or not.
Must type faster
[Edited on 7-9-12 by 40inches]
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russbost
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| posted on 7/9/12 at 08:07 AM |
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If the engine has to meet the later emission regs ie post '94 (IIRC) engine then you will never get it to meet the requirements without a CAT.
It's perfectly possible to get the engine to meet the CO & HC requirements, but to do so it would have to run lean in which case there is no
way it would meet the lambda requirement.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Jenko
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| posted on 7/9/12 at 08:22 AM |
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Thanks for the replies.....P
MY BLOG - http://westfieldv8.blogspot.co.uk/
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i_froloshki
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| posted on 11/10/12 at 01:56 PM |
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Hi,
One question for the emissions. I have a 95 silver top zetec. Is it possible to make the emissions equivalent to Euro 4? Lets say i can put 2
catalytic converters one after another, i have lambda as well... is it possible, anyone done it before?
I am in Bulgaria and it seems that the law at the moment is that is the chassis is not registered the car has to be registered as NEW and for that
reason to cover Euro 4 emission test. They are working on some changes (covering the requirement for the age of the engine) but who knows when it is
going to be ready.
Thanks
Regards
Yavor
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