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Author drilled air box
cjohnson
Member
Registered: 27th Apr 08
Location: silsden,west yorks.Drive: Astra van
User status: Offline
18th May 08 at 20:12   View User's Profile U2U Member Reply With Quote
Hi, I drilled the bottom of my air box out today... now if you put your foot straight to the floor, it like bogs down asif it's getting too much air now???

Is this ment to happen? lol, if not, why has it done it??

Cheers Carl...
richc
Member
Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
18th May 08 at 20:13   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by cjohnson
Hi, I drilled the bottom of my air box out today... now if you put your foot straight to the floor, it like bogs down asif it's getting too much air now???

Is this ment to happen? lol, if not, why has it done it??

Cheers Carl...


Yes that will happen! Fill them back up with filler or something
cjohnson
Member
Registered: 27th Apr 08
Location: silsden,west yorks.Drive: Astra van
User status: Offline
18th May 08 at 21:02   View User's Profile U2U Member Reply With Quote
lol, i drilled 4 holes with a hole cutter... they wont fill back in! lol

How come people drill them then?? :S

And wouldn't it do the same with a cone filter??

Carl..
Jord16vSport
Member
Registered: 3rd May 08
Location: colchester essex
User status: Offline
18th May 08 at 21:27   View User's Profile U2U Member Reply With Quote
I drilled mine out last weekend and it hasnt done what yours has just makes it sound like it has done what yours has. but if they are just big holes then that could be different, mine are just small holes. prob better just gettin a new box from a scrappy
Jord16vSport
Member
Registered: 3rd May 08
Location: colchester essex
User status: Offline
18th May 08 at 21:28   View User's Profile U2U Member Reply With Quote
sorry ment to say it makes it sound like i have put a induction kit on, but it sounds like yours could be diff...
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
18th May 08 at 21:29   View User's Profile U2U Member Reply With Quote
reset the ecu and see if it still happens.
Whittie
Member
Registered: 11th Aug 06
Location: North Wales Drives: BMW, Corsa & Fiat
User status: Offline
18th May 08 at 21:30   View User's Profile U2U Member Reply With Quote
My old car, just drilled box.

http://uk.youtube.com/watch?v=sQZV328zz4I
nova_gteuk
Member
Registered: 15th May 02
Location: South Wales Drives: The Bandwagon
User status: Offline
18th May 08 at 21:30   View User's Profile U2U Member Reply With Quote
Which side did you drill? you need to drill nearest the wing.

Its bogging down because its sucking hot air from the engine.

My k&n used to do the same.
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
18th May 08 at 21:32   View User's Profile U2U Member Reply With Quote
is a standard derestricted box better than a drilled one then?
nova_gteuk
Member
Registered: 15th May 02
Location: South Wales Drives: The Bandwagon
User status: Offline
18th May 08 at 21:34   View User's Profile U2U Member Reply With Quote
Found the pic,it needs to like this.
Corsa_Scotty
Member
Registered: 8th Aug 07
Location: Scottish Borders
User status: Offline
18th May 08 at 21:36   View User's Profile U2U Member Reply With Quote
Surely a derestricted and drilled airbox would be fine i want to do mine
Simon_16v
Member
Registered: 14th Aug 06
Location: Yorkshire
User status: Offline
18th May 08 at 21:41   View User's Profile U2U Member Reply With Quote
It'll be fine, on the spot its a little different but once your moving its fine
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
18th May 08 at 21:46   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by nova_gteuk
Found the pic,it needs to like this.




i unclipped the whole left section on mine and its fine.
Mobby
Member
Registered: 31st Dec 07
Location: Leicestershire
User status: Offline
18th May 08 at 21:51   View User's Profile U2U Member Reply With Quote
i drilled mine with a 19 hole cutter, i do get lowt down rev problems, but im hoping its just the spark plugs and leads
Minty_Fresh
Member
Registered: 1st May 08
Location: westmidlands
User status: Offline
18th May 08 at 22:02   View User's Profile U2U Member Reply With Quote
im thinking about doing this on my 1.0 12v with a k&n panel filter..

its only my day to day car but i just want abit more sound from it, is this a bad idea on a 1.0?
N3CRO
Member
Registered: 12th Apr 07
Location: Sandy, Bedfordshire
User status: Offline
18th May 08 at 22:15   View User's Profile U2U Member Reply With Quote
On my 12v, I've had 2 airboxes, both drilled and derestricted, one with big holes and one with small and my car has never bogged down or had any problems with either airbox.

[Edited on 18-05-2008 by Necromancer]
Minty_Fresh
Member
Registered: 1st May 08
Location: westmidlands
User status: Offline
18th May 08 at 22:18   View User's Profile U2U Member Reply With Quote
kool..

id only put a few small holes in it to be safe anyways as ive heard the 12v likes backpressure and doesnt like things done to the engine..

think a k&n panel filter with drilled air box and a backbox should help it sound abit more respectable..
richc
Member
Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
19th May 08 at 08:56   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by mk4_boy
kool..

id only put a few small holes in it to be safe anyways as ive heard the 12v likes backpressure and doesnt like things done to the engine..


Its a 12volt. There is nothing you can do to them
Bolino
Member
Registered: 30th May 07
Location: UK
User status: Offline
19th May 08 at 09:54   View User's Profile U2U Member Reply With Quote
Disconnect the battery for an hour to reset the ecu.

Connect the battery back up and drive the car round how you would normal drive on a daily basis for about 20-30mins.

Problem sorted.

Also you shoud do this after any engine mod.
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
19th May 08 at 10:49   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Bolino
Disconnect the battery for an hour to reset the ecu.

Connect the battery back up and drive the car round how you would normal drive on a daily basis for about 20-30mins.

Problem sorted.

Also you shoud do this after any engine mod.





ignore that completely, 'resetting' the ecu just clears possible stored fault codes and allows the TPS and ICV to reset to their new positions, it does not affect engine mods whatsoever. To reset the icv and tps you must leave the ecu unplugged for an hour and refit it, start the engine using no throttle and let it idle for a minute by itself.

wont make any difference though.
Bolino
Member
Registered: 30th May 07
Location: UK
User status: Offline
19th May 08 at 10:56   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
quote:
Originally posted by Bolino
Disconnect the battery for an hour to reset the ecu.

Connect the battery back up and drive the car round how you would normal drive on a daily basis for about 20-30mins.

Problem sorted.

Also you shoud do this after any engine mod.





ignore that completely, 'resetting' the ecu just clears possible stored fault codes and allows the TPS and ICV to reset to their new positions, it does not affect engine mods whatsoever. To reset the icv and tps you must leave the ecu unplugged for an hour and refit it, start the engine using no throttle and let it idle for a minute by itself.

wont make any difference though.


Well it worked fine on my cav, corsa, astra, astra gsi turbo and a lot of other cars and my dads mate who has been a vauxhall technician for 35 years told me to do that.
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
19th May 08 at 10:58   View User's Profile U2U Member Reply With Quote
so you were told by a vaux tech that disconnecting your battery for an hour allows the engine to recognise modifications if you drive round 'normally' for 20-30 minutes?
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
19th May 08 at 11:07   View User's Profile U2U Member Reply With Quote
is there a loss of pressure in a drilled box then?
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
19th May 08 at 11:08   View User's Profile U2U Member Reply With Quote
more noise.
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
19th May 08 at 11:13   View User's Profile U2U Member Reply With Quote
ive already got a drilled box, just wondering if a standard one would perform better?

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