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Model specific boards => Golf mk3 => Topic started by: davidwilkie84 on 17 December 2005, 15:10

Title: drilling airbox.... pros cons ?
Post by: davidwilkie84 on 17 December 2005, 15:10
heard its a lot better than an induction kit, so... how many holes/what size and what part of airbox ? pic of box provided.... guidance appreciated. and would i need to change my filter to a kand n panel or is the original ok ?

(http://img.photobucket.com/albums/v38/davidwilkie84/PHOT0016.jpg)

Title: Re: drilling airbox.... pros cons ?
Post by: monkeyalan on 18 December 2005, 19:38
it'll make it louder and let warm air form the bay in. dont do it.

replace the filter with a performance panel one and put 70mm ducting from the grille next to the horn.

  (http://i4.photobucket.com/albums/y143/monkeyalan/airfeed.jpg)
Title: Re: drilling airbox.... pros cons ?
Post by: AudiA8Quattro on 18 December 2005, 20:21
Will work fine as long as you ONLY drill wing side and front of the box.
Title: Re: drilling airbox.... pros cons ?
Post by: monkeyalan on 18 December 2005, 22:43
if your just after induction noise, go ahead. if you want more performance, drilling your airbox will make no difference whatsoever. if an enclosed  kit like a viper or similar only give a few bhp , a few little holes with no additional airflow to speak of would be worthless.
Title: Re: drilling airbox.... pros cons ?
Post by: AudiA8Quattro on 18 December 2005, 22:54
Drilling the airbox correctly and adding a performance panel filter will add a few extra bhp, so worth it for the money, stock air intakes are deliberately restrictive to reduce noise. However what people generally are unable to grasp is that such a mod will do more for the driveability of the car. Its not the overall gain the counts, its the fact that mid range torque will improve noticeably.
Title: Re: drilling airbox.... pros cons ?
Post by: yellowgti on 20 December 2005, 08:52
sorry guys i have to disagree here, when i had my congi with a k&n filter and straight through zorst from the cat back the car sounded absolutly mint some people said it sounded like a vr6 but now ive put it back standard with a little hoover size pipe for a forced air into the airbox it sounds quiet as hell but the car goes like fook now!
so id say forget the k&n forget the zorst just keep it standard and just put a pipe from the front of ur car to the air box, also its now doing 100 miles per £20 where before it was only doing 50 miles per £20
 :santa:
Title: Re: drilling airbox.... pros cons ?
Post by: Len on 21 December 2005, 14:19
K & N every time!

My performance figure below proves it!!!!! (Forum RR day)
Title: Re: drilling airbox.... pros cons ?
Post by: Pikey Potter on 21 December 2005, 15:50
it'll make it louder and let warm air form the bay in. dont do it.

replace the filter with a performance panel one and put 70mm ducting from the grille next to the horn.

  (http://i4.photobucket.com/albums/y143/monkeyalan/airfeed.jpg)
Looking at the photos you've obviously done what you described. Has it made any difference ?
Title: Re: drilling airbox.... pros cons ?
Post by: monkeyalan on 21 December 2005, 16:13
 i think so , i did it almost as soon as i got the car so it's hard to remember. i think it seemed to rev more freely and be a little more eager to pull when you floor it. nicer sound when booted but no noise difference under normal driving .nothing massive but worth it for £50 .
Title: Re: drilling airbox.... pros cons ?
Post by: davidwilkie84 on 21 December 2005, 20:11
where did you get your ducting from ? i have ordered my filter and just need the ducting now.... and where do you have it fed to ? just behind the bumper somewhere ?
Title: Re: drilling airbox.... pros cons ?
Post by: monkeyalan on 21 December 2005, 21:53
a place called Larkspeed in rotherham but it's standard heavy duty ducting so you should be able to get it most tuning places. It HAS to be 70mm to fit the standard airbox intake. the feed runs down to the small grill bit under the indicator/fog. I twisted the horn up out of the way a bit and secured it with cable ties.
Title: Re: drilling airbox.... pros cons ?
Post by: Organisys on 21 December 2005, 22:34
Pros...More Noise  :evil:
Cons..More Noise  :shocked:
Title: Re: drilling airbox.... pros cons ?
Post by: Pikey Potter on 25 December 2005, 22:28
sorry guys i have to disagree here, when i had my congi with a k&n filter and straight through zorst from the cat back the car sounded absolutly mint some people said it sounded like a vr6 but now ive put it back standard with a little hoover size pipe for a forced air into the airbox it sounds quiet as hell but the car goes like fook now!
so id say forget the k&n forget the zorst just keep it standard and just put a pipe from the front of ur car to the air box, also its now doing 100 miles per £20 where before it was only doing 50 miles per £20
 :santa:

He's right, i've carried out this mod and its like driving a different car....much quicker with more torque, you just can't go wrong and all its going to cost is a few quid for some ducting. Just for the record i also got rid of that trumpet shaped thing you get in the bottom of the air box. Can't honestly say i've doubled my MPG though !
Title: Re: drilling airbox.... pros cons ?
Post by: monkeyalan on 26 December 2005, 10:48
forgot to mention that  :rolleyes:
Title: Re: drilling airbox.... pros cons ?
Post by: robbiehall on 12 January 2006, 21:30
Cheers to Golf-Vr-6 advice.....drilled my airbox at the front and wing side only.....and its GR8!!!!!! sounds and performs like the business!!!! You will definatley hear the difference and feel more power in the mid-range!!!. My Gti feels more like it GTIIIIIIIIIIIII now!!!!!. Rob :laugh:
Title: Re: drilling airbox.... pros cons ?
Post by: Khare on 25 February 2008, 00:54
i put mine just behind the grill, next to the headlamp.
Title: Re: drilling airbox.... pros cons ?
Post by: gtiscott on 25 February 2008, 08:03
where do you run the 70mm ducting to? anyone got a pic to show me

cheers
Scott
Title: Re: drilling airbox.... pros cons ?
Post by: golfmk31993 on 25 February 2008, 09:56
i have an induction kit on my mk3 1.4 wich my friend gave me , it was on his fiesta zetec-s wich he wrote off, it has made the car sound better but thats about it, the air filter wasnt made specificly for my engine but i dont see why there model specific
Title: Re: drilling airbox.... pros cons ?
Post by: eightyeightmph on 25 February 2008, 10:09
Induction kit all the way. Speak to Bored_welsh_lad on here & buy some intakes if you want to run the ducting!

Title: Re: drilling airbox.... pros cons ?
Post by: boneybradley on 25 February 2008, 13:47
Where did this thread come from....2005!!  :shocked:
and i have to say drilled airbox with a good panel filter is my choice. I agree performance with the induction kit will be better but for the power gain/cost i would rather save for other mods..... better brakes or suspension will do more for driveability than induction..