Kev_A Posted June 18, 2009 Share Posted June 18, 2009 Thought I'd better make a new thread on this as I don't think people will look far enough in my pic thread of the box. The stock Arc filter is just a little too pricey for my liking, even from Nic it's looking like £70! So I started to explore the option of a K&N filter of similar size... On K&N's website there is a facility to enter the dimensions of the filter you require, it then displays the closest matches to you're criteria. Unfortunately, as expected there isn't anything of a 100% match, the closest I can find to the measurments Gaz gave me (bang on by the way mate! ) Lenth = 236mm Width = 200mm and height (Measured from the paper filter that's in there at the moment) 40mm is the following.... Height = 29mm Width = 197mm Length = 235mm This is meant for a: MERCEDES SLK 200 (UK) / SLK 230 2.3L I4 KOMPRESOR (US) 98-99MERCEDES SLK 200 (UK) / SLK 230 2.3L I4 KOMPRESOR (US) 98-99 Next up is Height = 25mm Width = 203mm Length = 235mm This is meant for a: HYUNDAI GRANDEUR TG 2.7L-V6; 2005 The Mercedes filter will undoubtedly fit straight in, the Hyundai item may just squeeze in there, being just 3mm wider then what's in at the moment, the K&N measurments go from outside lip to outside lip, that rubber frame they have around the top of them, then the height goes from the bottom of the filter to the top of the rubber lip. Like this... http://www.knfilters.com/search/images/OEMStyleG.gif A = Outside length B = Outside width H = Height The other thing I had wondered about was the height, again, the filter that's in there at the moment is 40mm, will fitting a thinner filter matter? surely it's just less mass for the air to travel through? What do you all think? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 18, 2009 Share Posted June 18, 2009 Length and width aside, the height difference will just effectively lessen the surface area, as the pleats will not be as deep. What effect the height difference may have on the sealing into the box I don't know, I am not familiar with them. My garden tractor mower (Iseki) needs a new air filter, it's only a 2 cylinder diesel, but Iseki want 76 quid for an air filter. I am going to glue a common car one on to the base plate taken from the dirty filter, and save myself nearly 70 quid Quote Link to comment Share on other sites More sharing options...
Kev_A Posted June 18, 2009 Author Share Posted June 18, 2009 So do you think either of those will be ok providing they fit? There is a metal frame which bolts over the top of the filter ( 6 bolts) this stops the filter from falling out, if I went for the Hyundai one the seal should be tighter as it'll be more of a squeeze to fit width ways (only 3mm) Quote Link to comment Share on other sites More sharing options...
colsoop Posted June 19, 2009 Share Posted June 19, 2009 Any gaps that the filter doesn't fill will allow crap in to your engine. Why not have an ally frame welded to the inside of the box so that you can fit a stock filter ? Quote Link to comment Share on other sites More sharing options...
Kev_A Posted June 19, 2009 Author Share Posted June 19, 2009 The standard filter is bigger than an ARC filter mate, plus if I had enough money to have welding done then I wouldn't be looking a a cheaper way of getting a new filter in there Quote Link to comment Share on other sites More sharing options...
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