taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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my mate has a 1.2 corsa c sri, can any1 tell me asap what diameter pipe is the cat? we are going to make a de-cat for it today after work, and need to know asap so we can pinch some tube from the stores  
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gsirick
Member
Registered: 18th Feb 07
Location: mid-wales
User status: Offline
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take it off and measure it would b ur best bet m8
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taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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boss wouldnt be to happy if we started working on his car in the middle of the body shop. stores closes at half 4 when we finish aswell
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taylorboosh
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Registered: 3rd Apr 07
User status: Offline
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is the cat on the front of the engine? if it is this will scupper our palns, info needed
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alan t
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Registered: 3rd Sep 06
Location: edinburgh
User status: Offline
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what engine in it mate?
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gsirick
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Registered: 18th Feb 07
Location: mid-wales
User status: Offline
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the cat is at the front of the car yes by the manifold downpipe
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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You will have some trouble 
The lambda sensor goes into the hole in the cat......... and also the cat is incorporated into the downpipe from the exhaust manifold to complete the section.
Trust me, you'll have a hard time.
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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Thats a picture of a 1.2 exhaust.... see what I mean.....
The Lambda goes into the top of the cat. If its not in there the engine will go bezerk.
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taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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how do i get round that 1 then?
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alan t
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Registered: 3rd Sep 06
Location: edinburgh
User status: Offline
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just leave it as it is
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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Or buy a pre-made decat pipe.
Trust me if you dont do it properly the engine will start playing up because of the Lambda reading.
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alan t
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Registered: 3rd Sep 06
Location: edinburgh
User status: Offline
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aye agree with richie. if you remove lambda then you will probs get poor running and eml on.
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taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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what if he drills a hole for the lamda sensor, it is a fabrication shop we work in so we could fabricate some thing? would this work? or should he just spend some money and not b a tight arse
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alan t
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Registered: 3rd Sep 06
Location: edinburgh
User status: Offline
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you might be able to drill a hole tap it and fit a lamda but if it was me i would buy a proper decat. less hassle and will be a far better fit. are you wanting a decat to make it louder? if so why not weld in a bit pipe in place of the centre box instead of a decat
[Edited on 23-04-2007 by corsa_sport_16v]
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taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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he didnt say why he wanted 1
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