Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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as some of you may know i still have the 1.2 Cat back section of exhaust on my car since i done a C16XE conversion.....
i was looking at getting a lexmaul system which has no centre section....
last night whilst on my way down the M1(the irish one ) the back box decided it didnt want to live with my car anymore and fell off so now i dont have a back box on the car... just the centre box....
i feel that i have lost some torque.... would a missing back box have this effect?
[Edited on 01-04-2005 by Siberia]
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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yeah prob, your losing back pressure now
will cause a loss of power
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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^^ What he said 
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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on the up side... it sounds good think i scared a few children
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TOMAS
Member
Registered: 7th Aug 02
Location: Nottinghamshire
User status: Offline
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I never realised how important a correctly tuned exhaust system was until I got my new one. I now on average get an EXTRA 30-40 miles per tank with my new 2.25" system compaired with the old 1.75" std 1.2 system I was running with the valver... Its mazing!
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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quote:
Originally posted by TOMAS
I never realised how important a correctly tuned exhaust system was until I got my new one. I now on average get an EXTRA 30-40 miles per tank with my new 2.25" system compaired with the old 1.75" std 1.2 system I was running with the valver... Its mazing!
does it run better? torque? top end? what configuration of exhaust are u using? 1 box? or 2?
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TOMAS
Member
Registered: 7th Aug 02
Location: Nottinghamshire
User status: Offline
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Runs a lot smoother, other one was leaking! Its a 2.25" madrell bent system with THREE silencer boxes and a VERY nice note. Seems to be slightly better in the 3-4k rev range, seems to seriously drop off after about 5.3K revs though. All round much nicer.
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scottc1088
Member
Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
User status: Offline
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what a load of crap, unless uv got a 2 stroke corsa then you dont need back pressure
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vibrio
Banned
Registered: 28th Feb 01
Location: POAH
User status: Offline
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quote:
Originally posted by TOMAS
I never realised how important a correctly tuned exhaust system was until I got my new one. I now on average get an EXTRA 30-40 miles per tank with my new 2.25" system compaired with the old 1.75" std 1.2 system I was running with the valver... Its mazing!
or maybe the fact that the smaller exhaust was too small a bore
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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quote:
Originally posted by scottc1088
unless uv got a 2 stroke corsa then you dont need back pressure
You don't need as much as a 2 stroke, but you certainly need some.
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