GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: evereddy on 06 September 2011, 11:07
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Is putting a K&N airfilter (57i) on my 8v a waste of time and money...thoughts please?
on the uspide I dont think the airfilter had ever been changed cleaned....(95,000 miles).
apart from sounding good :laugh: is there much benefit?
sorry couldn't find any other threads on this..
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waste of money.
Smoothed and drilled airbox with panel filter and cold air feed.
I'm surprised you didnt get any search results though, it is covered pretty much every day
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crikey - you really do live here Trog..! :grin:
cheers, again....
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Just agreeing with Trog, but thought I'd add that a less restrictive panel filter such as K&N or pipercross etc. Although they are still well overpriced.
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trog +1,Smoothed and drilled airbox with panel filter and cold air feed. I went down this route.
however they do look better!!! And I do have one If you want 1,pm me!!! :wink:
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I was thinking about doing this. I guess to smooth the box out you have to break the fins off with a pair of plyiers?
Thanks
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Easiest way is to break the fins off and use a mini-dremel to smooth them down
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Does a smoothed airbox really make any difference? compared to just fitting a k&n panel with a cold air feed?
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Does a smoothed airbox really make any difference? compared to just fitting a k&n panel with a cold air feed?
I have not bothered on mine but was told it helps in a little way.
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smoothed and drilled box wont do fack all either apart from let dust and moisture in, nor will a expensive panel filter :wink:
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smoothed and drilled box wont do fack all either apart from let dust and moisture in, nor will a expensive panel filter :wink:
I have a Pipercross panel filter in mine, induction kit did not fit (long story)
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smoothed and drilled box wont do fack all either apart from let dust and moisture in, nor will a expensive panel filter :wink:
Induction kit is a waste of money on an N/A car, as the temperature of the air entering the inlet will directly affect power due to its density. Its a bit different on a turbo car as the turbo heats up the air anyway, hence the need for a cooling aid in between the turbo and engine e.g. intercooler/ charge cooler.
Paper filters are actually better at filtering dust than cotton ones (what K&N filters are made of) and don't require oiling, as the oil has been shown to destroy MAFs over time.
You're just as likely to suck up water with an induction kit as with the smoothed airbox, its all to do with the cold-air feed placement. Look in the mk4 section with the hydrolocking incidences, due to the low placement of the feed.
Dyno testing has shown that in the mk3s case, the air box mod is the best you can do.
http://www.golfgtiforum.co.uk/index.php?topic=129025.0
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The problem with paper filters is they don't work at full efficiency for very long.
This is why a k&n will allow the engine to breathe better, unless you want to replace the paper filter every month....
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yeah its six of one and half dozen of the other aint it
the point i was making is that neither will give u gains, i used a K&N om my old 8v lump, for some reason the car was jumpy in 1st gear, after i ran the 57i it solved that issue :laugh:
got one on my S3 engine but its relocated to outside the bay, again had to run this as the original airbox for the engine would not fit in the bay.
i had to make up the pipe work to relocate to outside the bay. before this it was sat in the bay with the "heat".. i feel no difference in performance from where it is now (outside the bay) to where it was (near the turbo heat)
on this basis i think people worry too much about heat soat :wink:
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i stuck one on my golf (when i had it) and it used to drink petrol like it was going out of fashion
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yeah its six of one and half dozen of the other aint it
the point i was making is that neither will give u gains, i used a K&N om my old 8v lump, for some reason the car was jumpy in 1st gear, after i ran the 57i it solved that issue :laugh:
got one on my S3 engine but its relocated to outside the bay, again had to run this as the original airbox for the engine would not fit in the bay.
i had to make up the pipe work to relocate to outside the bay. before this it was sat in the bay with the "heat".. i feel no difference in performance from where it is now (outside the bay) to where it was (near the turbo heat)
on this basis i think people worry too much about heat soat :wink:
I would say a panel filter and smooth box may give a couple of bhp peak, the main difference will be mid range torque, basically you will feel an improved throttle response.
In your case Brad, you won't feel any difference, you won't if you're already running silly power :grin:
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:grin: :grin:
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There is one other way of looking at it......
A K&N cone filter never needs replacing.
So if you keep the car long term you are saving on servicing costs! :grin:
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tbh iv always ran K&N and i personally like them lots, but thats just me.. others hate them.. its just down to personal pref
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Been using K&N's since the early 80's.
I even rate them so much I actually bought one for one of my company cars!
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Been using K&N's since the early 80's.
I even rate them so much I actually bought one for one of my company cars!
:cool:
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K&N filters rock, I wash mine out in the sonic tanks at work and never bother with oil other than a quick squirt of maint spray.
My current filter is upwards of 60k miles and on its third Mk3.
Paid about £30 for it 6 years ago so its paid for itself and bought me a beer :cool:
As for performance, it wont do dick on its own but allows you to exploit other areas better
Got some more pics somewhere, but i have been working through my intake in prep for a hot cam.
Gone away from drilled box and fitted bigger bore intake into original wing compartment (minus inner part of grommet, pipe on in 90mm elbow is for show only you need to cut the end at an angle so you dont seal off against the inner wing :wink:
Leave hood part of box alone fecking with this makes the car run pants.
I have also opened out my maf housing, dont feck with the Ali baffle or sensor tunnel :cry:
This one is now polished up gleaming with a new custom baffle.
Throttle body is now fitted, polished and enlarged+ matched to fit intake Manifold better.
Tip, use thin blade like half a power saw or strip of metal and heat it up very hot (be careful)
cut through ribs inside the base of the air box to smooth off, makes it easy to tidy them afterwards :smiley:
Got a nice exhaust fitted and a sport cat to go on, found a cat only part which i need to weld into the system cost me £80 :cool:
Car revs up quick and feels more responsive, cam will come when I can find the money for now PB cam will suffice
Is it worth tuning an 8v? dont care it gives me something to do and i spend some quality time with my dad in his workshop also its cheap fun.
(http://img143.imageshack.us/img143/3442/airboxwith90.th.jpg) (http://imageshack.us/photo/my-images/143/airboxwith90.jpg/)
(http://img828.imageshack.us/img828/3692/mafhousing.th.jpg) (http://imageshack.us/photo/my-images/828/mafhousing.jpg/)
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One big problem with K & N is that they are oil and they tend to screw up the Maf sensor over time.
Pipercross foam is dry so gives no problem.
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I've never lost a MAF from using a k&n.
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I've never lost a MAF from using a k&n.
Likewise, and I've used them on several cars over the past 15 years. I can see this happening it you're stupid enough to dip them in ridiculous amounts of oil though.
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yep that oil thing is another internet K7N haters tale wayne mate, id ignore it coz iv never ever had that issue. always used K&N from my very first car in 1994 to present