Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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I took my BFO off today for the first service, and when i was driving it to the garage with my standard air box it felt alot more responsive. Especially between 1,000rpm and 2,000rpm. The only thing i dont like is that with my centre section cut out and the standard airbox it sounds raspy, but with the BFO is sounds nice. I was wondering what a drilled airbox sounds like?
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Noonster
Member
Registered: 20th Jul 03
Location: East Yorkshire
User status: Offline
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Drilled Airbox is good......
I have done this..... gives a nice sounds when accelerating in 2nd / 3rd gear (basically raging it  )
Feels more responsive also.....
Only problem is now i dont have an undrilled airbox  - and people are trying to sell me one for £40 
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Paul H
Member
Registered: 11th Aug 03
Location: Lincoln.
User status: Offline
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they do drive better with a standard airbox on that's why i took mine off.induction kits are pants
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Noonster
Member
Registered: 20th Jul 03
Location: East Yorkshire
User status: Offline
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Induction kits look good and thats it!
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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Does anyone know the RRP for the bottom half of the standard air box?
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corsaC_on_18s
Member
Registered: 29th Dec 02
User status: Offline
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mate i kept by standard air box on, cause your right it's alot more reponsive! I got a cat-back BFO system from pvd....that will do me...
induction kits only work well on bigger engines and even then they can be pants..
p.s, anyone heard of "kilen" springs?
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MikeH
Member
Registered: 3rd Apr 03
User status: Offline
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induction kit ha s a benefit at high rpm as the car will freely rev higher without sounding like its struggling.
at low rpm you do get a loss.
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Noonster
Member
Registered: 20th Jul 03
Location: East Yorkshire
User status: Offline
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Red - no mate , but i need one so when you know give me a shout 
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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I've left the standard air box on for the moment, it feels alot faster with it on. I think i'm going to drill it and get a K&N panel filter, and spray the top or something
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AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
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yep standard box drilled with decent panel is much better than a induction kit for power, just not as noisy and dont look as good.
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MikeH
Member
Registered: 3rd Apr 03
User status: Offline
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With the standard paper filter on my car isn't happy reving over 4000.. infact i don't get the usual kick at 4000.. it just stuggles to go higher.
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M4tt
Member
Registered: 18th Apr 03
Location: Potters Bar
User status: Offline
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in my experience with induction kits i've found when i ping it from say 3rd gear to fifth or sumin - like entering a motorway, my car revs much better at higher revs.
but going round town where the airflow ain't as good it isn't as responsive, but then again i don't really boot my car round town.
with a performance panal filter and drilled box ( which i have at the mo) my car pulls nicely in all gears, except when the revs get to about 5.5K and then it feels as it struggles.
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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I dunno whether to put the BFO back on or drill my box
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M4tt
Member
Registered: 18th Apr 03
Location: Potters Bar
User status: Offline
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no im not sure about that either for mine
depends how you drive i suppose, if you keep the revs high then maybe the inductions better.
i can't standard traffic with an induction kit cause it makes me car heat up like a whore on speed...
but then again a lot of peps will say you get a better gain with a drilled airbox and panel filter...
i dunno either
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AndyW
Member
Registered: 28th Oct 02
Location: Greater London
User status: Offline
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i have a BFO on my corsa B n ithink it sounds betta than standard box...tho i never drilled mine.
basically i like my BFO no complaints!
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MikeH
Member
Registered: 3rd Apr 03
User status: Offline
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Yeh i always keep the revs up you see. changing down all the time
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CorsaLad16v
Member
Registered: 5th Mar 03
Location: Sheffield UK Drives: VW Golf
User status: Offline
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i have a drilled air box, never had an induction kit like the BFO but i like the drilled airbox
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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red_sxi, ur handy making stuff, make a nice shiney stainless heat shielf for the bfo cone ,will look tops! and works very well
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Noonster
Member
Registered: 20th Jul 03
Location: East Yorkshire
User status: Offline
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quote:
Originally posted by Red_Sxi
I've left the standard air box on for the moment, it feels alot faster with it on. I think i'm going to drill it and get a K&N panel filter, and spray the top or something
Do it
and when you find a price on a replacement bottom let me know, as i will need one when the first service is due 
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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quote:
Originally posted by broster
red_sxi, ur handy making stuff, make a nice shiney stainless heat shielf for the bfo cone ,will look tops! and works very well
that is gonna be a LARGE bit of metal pipe lol.
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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not a pipe dude more like a metal wall, like mav did on his
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Doug_SRi
Member
Registered: 1st Sep 02
Location: Aberdeen. Drives: Stage 2 Astra VXR and Nova
User status: Offline
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i bought a spare air box from a scrap yard for £15+vat included top and bottom half and original filter and fittings
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Noonster
Member
Registered: 20th Jul 03
Location: East Yorkshire
User status: Offline
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No scrap yeard near me though
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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I'm sure it wont cost much from Vaux.
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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quote:
Originally posted by Red_Sxi
I've left the standard air box on for the moment, it feels alot faster with it on. I think i'm going to drill it and get a K&N panel filter, and spray the top or something
i've just done this and removed cone, put extra cold air feed too, is just smoother all thru rev's......
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