DaNnY_LaD
Member
Registered: 30th Nov 05
Location: Walkden,Manchester
User status: Offline
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Im just wondering how do u tell if your exhaust is too restrictive..Ive got my 1.4 sport exhaust on with the 1.4 CAT still in...
But when i boot it,It will pull like fuck up to 3k - 3.5k then slowly rise....And it defo sounds tiny...?
Could this be that my exhaust is too restrictive on my 2.0 16v?
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Simon_16v
Member
Registered: 14th Aug 06
Location: Yorkshire
User status: Offline
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I would says it is by the sounds of it.
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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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a bigger bore exhaust will help it pull better at higher rpm. mine made a good difference when I went from standard to 2.25"
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DaNnY_LaD
Member
Registered: 30th Nov 05
Location: Walkden,Manchester
User status: Offline
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Yup after 3krpm it doesnt pull as hard...So i defo need to get one made or see if anyone is selling any exhaust section that is 2.25 with no cat and 1 rear silencer
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willay
Moderator
Organiser: South East, National Events
Premium Member
Registered: 10th Nov 02
Location: Roydon, Essex
User status: Offline
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your XE will blow that cat to bits 
Get a bigger system asap 
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Adam_B
Member
Registered: 13th Dec 00
Location: Lancashire
User status: Offline
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quote:
Originally posted by willay
Get a bigger system asap
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SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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i used a standard 1400 centre section on mine when i had my xe but had no cat on it . got 128bhp at wheels with it too 
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DaNnY_LaD
Member
Registered: 30th Nov 05
Location: Walkden,Manchester
User status: Offline
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quote:
Originally posted by SportyBoy
i used a standard 1400 centre section on mine when i had my xe but had no cat on it . got 128bhp at wheels with it too
So mine isnt running its full potential?
what Bhp would u reckon
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Mike2k111
Member
Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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I think BHP at the wheels will always be less than the theoretical HP of the engine due to internal friction (power loss). So basically BHP at the wheels is the theoretical HP of the engine (150) minus the internal friction.
May be wrong here but thats what i think anyway, what I dont no though is whether 128bhp at the wheels is good for a C20XE, SportyBoy seems quite happy though
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SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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128 should be about 150+ at fly .. my m8 got 123 in a standard astra gte16v
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