banna
Member
Registered: 26th Dec 05
User status: Offline
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do removing the cat give a gain in horsepower?
is it better to fit a cat back pipe?
thanks
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Wrighty
Member
Registered: 28th Feb 04
Location: Howden
User status: Offline
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hardly noticeable power gains mate
biggest difference will be noise
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banna
Member
Registered: 26th Dec 05
User status: Offline
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WHATS my best option for gains in this area? is there none?
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OGX
Member
Registered: 14th Oct 03
Location: glasgow, scotland
User status: Offline
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get a full system!
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banna
Member
Registered: 26th Dec 05
User status: Offline
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what kind of horsepower gains can i expect? 5-10%?
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OGX
Member
Registered: 14th Oct 03
Location: glasgow, scotland
User status: Offline
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depends on what engine? mainly the bigger the engine the better the gains!
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banna
Member
Registered: 26th Dec 05
User status: Offline
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1.4 16v single overhead cam
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OGX
Member
Registered: 14th Oct 03
Location: glasgow, scotland
User status: Offline
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with a decent system yeah your talking 5-10% but you can lose power with a shit system! I would go custom!
[Edited on 28-12-2005 by OGX]
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Rob_Corsa
Member
Registered: 4th Apr 02
Location: Derbyshire
User status: Offline
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quote:
Originally posted by OGX
with a decent system yeah your talking 5-10% but you can lose power with a shit system! I would go custom!
[Edited on 28-12-2005 by OGX]
I was under the impression that custom exhaust(basic ones) were just built to fit whereas magnex etc design them so that they give the right amount of back pressure for maximum performance gain?
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dantheman
Member
Registered: 8th Oct 03
Location: Alford, Lincolnshire
User status: Offline
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1.4 16v single overhead cam??
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banna
Member
Registered: 26th Dec 05
User status: Offline
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the engine before the model put into the corsa c
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Will_Sport
Member
Registered: 28th Jun 04
Location: Notts
User status: Offline
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it'll be a double over head cam if its 16v.... as far as i'm aware only honda make SOHC 16v engines.
and if its just a 1.4 8v (which it'll be if its SOHC) a full system will cost more than upgrading to a x14xe (1.4 16v... or possibly a 1.6)
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banna
Member
Registered: 26th Dec 05
User status: Offline
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it's definitely a 1.4 16v- i've got the badge on the right rear
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Darren
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Registered: 21st Apr 02
Location: Hadleigh, Suffolk
User status: Offline
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Will_Sport
Member
Registered: 28th Jun 04
Location: Notts
User status: Offline
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does your engine have a cover saying ecotec on it?
if it has a cover, take it off and look if the spark plugs are on side of engine or if sunk between 2 mounds (where the cams are), if they are between 2 rows then it'll have 2 cams... or double overhead cam
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banna
Member
Registered: 26th Dec 05
User status: Offline
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the sparkies sit real deep below the opel sign at the top. my car is a holden (i.e. impoted to NZ from germany_
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banna
Member
Registered: 26th Dec 05
User status: Offline
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it is an ecotec motor
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Will_Sport
Member
Registered: 28th Jun 04
Location: Notts
User status: Offline
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if its ecotec it'll be DOHC
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Will_Sport
Member
Registered: 28th Jun 04
Location: Notts
User status: Offline
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and as its ecotec.... you're best bet is to spend the money you'd spend on an exhaust on an inlet manifold (lexmaul/mantzel) it'll give you better gains than most exhaust bits
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banna
Member
Registered: 26th Dec 05
User status: Offline
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so run headers from the exhaust all the way to the back (as in a full system)? cheers for the help
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Will_Sport
Member
Registered: 28th Jun 04
Location: Notts
User status: Offline
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uh? The inlet manifold is quite restrictive part, its the 4 bits that lead into engine (look on brosters garage... think he has a lexmaul)... other than that a 4-1 manifold and decat are going to be the only gains you'll get on the exhaust and they won't be massive unless air can get into engine quick in the first place
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banna
Member
Registered: 26th Dec 05
User status: Offline
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my bad. i'm with ya now. i'll give it a go. thanks for ya advice
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