supercat
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| posted on 19/2/12 at 09:56 PM |
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100 cpi Cat for IVA
Hello,
Does anyone know if you can get through IVA on a 100 cpi Cat? Mildy tuned 2 litre Zetec. Presumably I could change the map of the ECU to make the
emissions test a bit easier?
Thanks,
James
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adithorp
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| posted on 20/2/12 at 08:34 AM |
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100cpi might be a bit marginal. Very difficult to know for sure though but I suspect it'd make life a pain at IVA.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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blakep82
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| posted on 20/2/12 at 12:26 PM |
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whats the norm for the size of a cat used on cars here? plenty of 200cpi cats for cheap in america (£50 or so) but not sure if they'll be great
or not since we pay about £200 for something similar here
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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sdh2903
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| posted on 20/2/12 at 12:40 PM |
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Blake you can get cheap ones over here.
I've got one of these 400 cell cats, no idea how well they work as ive not had the car on the emissions tester yet.
Stainless Steel Universal Exhaust Catalytic Converter | eBay
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blakep82
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| posted on 20/2/12 at 12:53 PM |
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interesting! think my pipe is 2.5", but i guess that could be modded...
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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procomp
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| posted on 20/2/12 at 12:58 PM |
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Hi
We where making 100 cpi units to fit on the race cars that would pass a scrutineer. But when tested to MOT spec by friends MOT station it didn't
stand a chance. 
Cheers Matt
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l0rd
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| posted on 20/2/12 at 02:31 PM |
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would a 200 cpi cat be ok for a normal road legal car? My exhaust is degrading and looking to make a ss one with a sports cat
[Edited on 20/2/12 by l0rd]
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adithorp
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| posted on 20/2/12 at 03:24 PM |
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As a general rule tin-tops have 400cpi cats. 200cpi "performance" cats are efficient enough to pass the MOT and IVA standard test. Once
you get to 100cpi matrix there's a lot less cat surface area doing the work so they get a bit marginal.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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supercat
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| posted on 20/2/12 at 10:47 PM |
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Thanks chaps, looks like its a 200cpi for me then.
James
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