GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: technics100 on 06 November 2012, 22:33
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I have bought a spare 16v airbox for my ABF with the hope of getting a good cold air feed upto it. I have removed all the gibbons from the bottom of the box. I now have cut the air intake and now have a 65mm hole in the bottom off the box. Is that enough with a cold air feed? I'm going to remove the top tapered intake pipe and either bellmouth it or else cut it back. What do I do with the wee sensor on the side of the airbox, the one with the brown and black pipes. Can I blank them and remove the sensor.
I have read the toyotek thread, but just not sure on cold air feed sizes..
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Blanking plate over the warm air intake opening and remove the vacuum piping from the side. I also took out the connection points and filled the holes with rivets.
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cut a big section out of the bottom for big deep breaths
(http://i9.photobucket.com/albums/a69/aksion/IMG_2801_zps071afb8a.jpg)
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cut a big section out of the bottom for big deep breaths
(http://i9.photobucket.com/albums/a69/aksion/IMG_2801_zps071afb8a.jpg)
Tremendous idea...
Open up a sealed and insulated airbox beathing cold air, and let the engine ingest as much hot air as it likes, what with air taking the path of least resistance and all. :whistle:
Hacked about airbox = lots of noise.
Hot air = de-tuning.
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the cut is on the cold air side away from the engine, and it didn't make any change to noise for me for some reason.. anyhoo i have a cone and shield now :wink:
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the cut is on the cold air side away from the engine, and it didn't make any change to noise for me for some reason.. anyhoo i have a cone and shield now :wink:
Go measure the temperature in the engine bay whilst you are driving - you'll find the temperature near the engine, and on the wing side of the airbox, are pretty much the same. Warm/hot.
I'm surprised it didn't give some noise...it usually does.
You have an opn cone now?
With a heatshield?
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I have 80mm cold feed. I cut a hole in the box then used the top part trumpet to put on the hole (cut down) so I could seal it with silicone and have something to fix the 80mm hose to.
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the cut is on the cold air side away from the engine, and it didn't make any change to noise for me for some reason.. anyhoo i have a cone and shield now :wink:
Go measure the temperature in the engine bay whilst you are driving - you'll find the temperature near the engine, and on the wing side of the airbox, are pretty much the same. Warm/hot.
I'm surprised it didn't give some noise...it usually does.
You have an opn cone now?
With a heatshield?
yeah you're probably right about the air temp thing.. it was stock filter maybe that's why no noise. yeah got open k+n filter now with a 2mm steel heat shield (no insulation at the mo) and a couple of cold air feeds comin up from the bumper. might make a new shield tho cos it's a bit gappy around the edges so I think it's lettin some hot air through
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I have 80mm cold feed. I cut a hole in the box then used the top part trumpet to put on the hole (cut down) so I could seal it with silicone and have something to fix the 80mm hose to.
got any pics?
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Bad idea opening up the airbox. Glen knows why.
You'll see why in Feb 2013.
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I have 80mm cold feed. I cut a hole in the box then used the top part trumpet to put on the hole (cut down) so I could seal it with silicone and have something to fix the 80mm hose to.
got any pics?
No. I might take some later if your lucky
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Blanking plate over the warm air intake opening and remove the vacuum piping from the side. I also took out the connection points and filled the holes with rivets.
do you just leave the vaccum pipes hanging there or remove them completely???
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Bad idea opening up the airbox. Glen knows why.
You'll see why in Feb 2013.
Whats going down?
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Blanking plate over the warm air intake opening and remove the vacuum piping from the side. I also took out the connection points and filled the holes with rivets.
do you just leave the vaccum pipes hanging there or remove them completely???
I completely removed both vacuum hoses from the throttle body and bunged up the outlets so there was no air leaks.
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Bad idea opening up the airbox. Glen knows why.
You'll see why in Feb 2013.
Whats going down?
It'll be frigging cold for starters.
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Bad idea opening up the airbox. Glen knows why.
You'll see why in Feb 2013.
Whats going down?
It'll be frigging cold for starters.
It's why I'm not down on power on my latest run. I'll be remodelling a new airbox when I'm back from Brazil, a sealed box.
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waste of time doing owt to the airbox
i have a un molested one for sale if anyone needs one
I run a K&N relocated to outside the bay behind the bumper.. i find this is the best way to go.
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waste of time doing owt to the airbox
i have a un molested one for sale if anyone needs one
I run a K&N relocated to outside the bay behind the bumper.. i find this is the best way to go.
Doesn't really matter if you have a inter cooler hanging out the bumper :rolleyes:
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Now this is what ive been thinking,is there any benefit having cold air feed on a turbo motor,as i thought the air would get very hot as it passes through the turbo anyway ,or does every little help?
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waste of time doing owt to the airbox
i have a un molested one for sale if anyone needs one
I run a K&N relocated to outside the bay behind the bumper.. i find this is the best way to go.
Best way how?
I tried it...built a long CAI to the duct below the drivers side foglight and it made no difference.
On yours it may help...but on most it'll do nothing but add bling and noise.
The standard airbox (de-restricted) is as good as anything on a 16v up to 200BHP.
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Cheers guys, Well I have just pulled all the crap out of the inside. Just want to get a good cold air feed to it. So will use the existing 65mm hole in the bottom and get a feed pipe to it from the front bumper, will try and get a 63mm trumpet for the top 1/2. Does the bottom need to be any bigger? would cutting it out to 80mm make it any better?
Air box before
(http://i467.photobucket.com/albums/rr33/technics100/Golf%20Gti/20121105_220725.jpg)
After stuff removed
(http://i467.photobucket.com/albums/rr33/technics100/Golf%20Gti/20121106_213957.jpg)
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It's much better to buy a 8v air box for the bottom part for future reference. The more air the better. At speed a 80mm hole will take more air than 65mm as long as its got a direct feed to the front bumper. I need a set of Hellas to make the best air box mod