MKC
Member
Registered: 8th Oct 04
Location: Bath
User status: Offline
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would this work?
basically taking a used Cat, removing all the stuff inside - diy decat?
no one does anything like this for a Corsa C yet so was wondering if it would work?
cheapest used cat i can find is 100.
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John G
Member
Registered: 18th Jul 05
Location: Wirral, Merseyside
User status: Offline
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yup this would work only if u make sure u get every last bit of shoot out from inside as they rattle to fook otherwise
personally id rather just pay an get a de-cat pipe made
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MKC
Member
Registered: 8th Oct 04
Location: Bath
User status: Offline
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would like a 4-2-1 custom manifold really but places seem 2 want 400+ 2 make one! 
just thought it might give a bit more performance
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Marshall
Member
Registered: 10th Nov 05
Location: Boston, Lincs Drives: 1.4 Sport & 2.2 astra
User status: Offline
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ive knocked a few cats thru in my time(mainly on deisels that have blocked). My weapon of choice is a crow bar. But acustically a straight thru pipe is better.
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Chris F
Show Staff
Organiser: East Anglia
Premium Member
Registered: 26th Dec 05
Location: Newmarket Drives: Escort Van 1.8
User status: Offline
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quote:
Originally posted by Charly
ive knocked a few cats thru in my time(mainly on deisels that have blocked). My weapon of choice is a crow bar. But acustically a straight thru pipe is better.
 you farmer!
Look round your local tyre and zorst garages and they will do ya one for a tenner no worries!
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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knocking the insides out of a cat will do nothing for performance, probably make it worse and sound crap.
what engine do you have?
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Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
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quote:
Originally posted by Dave A
knocking the insides out of a cat will do nothing for performance, probably make it worse and sound crap.
what engine do you have?
But it'll do the same as a decat pipe
Corsa C Z20Let
Black Sleeper Turbo Project
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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no it wont as you would have a big hollow chamber in the exhaust.
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Eck
Premium Member
Registered: 17th Apr 06
Location: Lundin Links, Fife
User status: Offline
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quote:
Originally posted by Dave A
no it wont as you would have a big hollow chamber in the exhaust.
Yup, so less pressure. Best to just get a de-cat pipe.
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MKC
Member
Registered: 8th Oct 04
Location: Bath
User status: Offline
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quote:
Originally posted by Dave A
knocking the insides out of a cat will do nothing for performance, probably make it worse and sound crap.
what engine do you have?
a Z14XE.
yeah i did think that about the hollow chamber, but wasn't sure
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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even if you get a proper decat you wont notice any difference anyway, in fact youl probably lose a little low down torque
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MKC
Member
Registered: 8th Oct 04
Location: Bath
User status: Offline
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quote:
Originally posted by Steve
even if you get a proper decat you wont notice any difference anyway, in fact youl probably lose a little low down torque
how come?
i thought it would de-restrict the exhaust freeing up a few bhp's?
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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back pressure, most of the time you lose a little low down torque, but should pull a little better higher up the rev range
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