martferguson
Member
Registered: 15th Jan 05
Location: Southampton
User status: Offline
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i wanna decent filter that is gonna add as much bhp as possible.
i've been told to get a RamAir filter caus they sound good and add aproximately, which has been dyno tested, at 8 bhp.
but there is also K&n, Green, Pipercross, etc.
what do i get, would it be worth getting a bigger filter like a vectra V6 filter, will it just look better or actually make the car any better?
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RichR
Premium Member
Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
User status: Offline
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BMC CDA -for looks - not sure about performance- but never heard bad things from the people I know that use them
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RichR
Premium Member
Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
User status: Offline
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from James w
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adelcorsa
Member
Registered: 21st Apr 03
Location: ipswich
User status: Offline
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see joff he is a very help ful bloke
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adelcorsa
Member
Registered: 21st Apr 03
Location: ipswich
User status: Offline
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he works for pipercross
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RKS
Member
Registered: 2nd Mar 04
Location: Gloucestershire UK
User status: Offline
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i've recently put a Pipercross Viper on my corsa (SRi 1.4 8v running dbilas throttle bodies) I went from the standard Pipercross Filter to the Viper and it made on hell of a difference so my money goes on the viper 
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Joff
Member
Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline
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quote:
Originally posted by LiVe LeE
BMC CDA -for looks - not sure about performance- but never heard bad things from the people I know that use them
For looks?? WTF?? The CDA is the WORST filter for looks 
A piece of nasty carbon fibre in a cylinder... great! 
What you wants is a silver Viper 
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adelcorsa
Member
Registered: 21st Apr 03
Location: ipswich
User status: Offline
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id like a viper but im not that rich yet so a vector for me
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Rocky
Member
Registered: 16th Nov 02
Location: Bridgend S.Wales Drives : Astra VXR
User status: Offline
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whats the best filter in performance for a 1.2 8v 
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Joff
Member
Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline
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quote:
Originally posted by martferguson
i wanna decent filter that is gonna add as much bhp as possible.
So you want something that will flow a lot of air, for a long time.
This rules out cotton-gauze filters, unless your happy to clean them out every 5-8,000 miles. Add another £15-odd for the cleaning kits.
For maximum airflow over a long period of time, go for foam
i've been told to get a RamAir filter caus they sound good and add aproximately, which has been dyno tested, at 8 bhp.
Every manufacturer uses dyno results, exact figures aren't a good way to judge a product as they're tested on different cars, on different days, or in the case of magazine group tests, typically run once or twice on the rollers to get a figure before the filter is changed for the next one on the list.
The RamAir is a foam filter, with an aluminium base so you're onto a winner already.. but really you should be looking to get a Pipercross filter 
but there is also K&n, Green, Pipercross, etc.
No, No, Yes, no.
what do i get, would it be worth getting a bigger filter like a vectra V6 filter, will it just look better or actually make the car any better?
The Vectra filter probably won't be any bigger and its unlikely to have the same fitment as the Corsa filter.
For the best airflow and induction note, get the Pipercross XL filter - based on a Cosworth filter!
For the best in styling, get the Viper.
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Joff
Member
Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline
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quote:
Originally posted by Rocky
whats the best filter in performance for a 1.2 8v
No filter will affect your engine's performance in terms of power, so you should concentrate on the sound it gives, plus looks, how long the filter can go before it needs cleaning, etc.
I'll make it easy - Call Vaux-Tec / LMF / Demon Tweeks and ask for a PK037XL
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adelcorsa
Member
Registered: 21st Apr 03
Location: ipswich
User status: Offline
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surley if he has a gsi dont they say the bfo filter shouldnt be fitted to it
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Joff
Member
Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline
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quote:
Originally posted by adelcorsa
id like a viper but im not that rich yet so a vector for me
Vector will still look good on the GSi because of the silicone hose
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adelcorsa
Member
Registered: 21st Apr 03
Location: ipswich
User status: Offline
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yup a blue 1 lol
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Joff
Member
Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline
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quote:
Originally posted by adelcorsa
surley if he has a gsi dont they say the bfo filter shouldnt be fitted to it
Didn't know he had a GSi
It's not that the BFO shouldn't be fitted, but that it can't be fitted because the neck is the wrong size!
By all means if you're happy to play with different sizes of silicone tubing, get the XL
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