SPGTi 2 Posted July 11, 2007 Not a subject I ever thought I would post about .............. Anyway, last month, blasting around Sweet Lamb in some serious dust, unsurprisingly my air filter cogged up really bad. It is a K+N that is always cleaned and oiled (using their products). During a break I took it off and tried to tap out some of the dust, but the oil was doing its job and the dust just stuck in there. In hindsight I should have taken my spare, but didn't. So the question is what is the best type of filter to use, which would minimise the clogging but offer good filtration ? I presume all the cotton gauze type would be the same as the K+N, but how do the foam ones act ? Are there any other type worth looking at ? I don't have the std airbox setup so would be looking for a cone type. cheers Steve Share this post Link to post Share on other sites
M_R_205 5 1 Cars Posted July 11, 2007 (edited) i used to use a piper cross one that i just hooverd out every now and then i occasionlay rinsed it out will water too never gave me any trouble, its similar to this one http://cgi.ebay.co.uk/piper-Cross-vector-a...1QQcmdZViewItem Edited July 11, 2007 by M_R_205 Share this post Link to post Share on other sites
DamirGTI 345 Posted July 11, 2007 Hi ! Some reference about air filters that I've found here few years ago tested on 205 1.9 GTi engine : Standard Peugeot filter Efficiency: 43% Capacity: more than 100g Pressure Drop: 160mm of water at 250cfm Verdict: the oe filter is a foam device. lasted to the end of the dust test, partly because it filtered barely 40% of the dust from the air intake. very restrictive. GMR (foam) Efficiency: 85.2% Capacity: more than 259g Pressure Drop: 141mm of water at 250cfm Verdict: A foam filter, low pressure drop results and high efficiency for a foam filter promise good performance in use. ITG (foam) Efficiency: 67.5% Capacity: more than 188g Pressure Drop: 156mm of water at 250cfm Verdict: disappointing JAMEX (foam) Efficiency: 72.7 % Capacity: more than 186g Pressure Drop: 156mm of water at 250cfm Verdict: didn't show the greatest efficiency, but pressure drop figures were competitive. JETEX (cotton gauze) Efficiency: 94.1 Capacity: 62g Pressure Drop: 153mm of water at 250cfm Verdict: very high efficiency figures, but a much lower capacity. pressure drop results are in the middle of this group. JR (cotton gauze) Efficiency: 95.5% Capacity: 52g Pressure Drop: 144mm of water at 250cfm Verdict: high efficiency, but low capacity. Pressure drop results were OK K&N (gauze) Efficiency: 95.7% Capacity: 115g Pressure Drop: 134mm of water at 250cfm Verdict: Gave the highest efficiency, with the lowest pressure drop figures. Should be good for performance and engine life. The drawback is a low capacity compared to foam filters - it will need to be cleaned more often. RAMAIR (foam) Efficiency: 86.5% Capacity: more than 207g Pressure Drop: 166 mm of water at 250cfm Verdict: expensive, marginally the best efficiency of the foam filters, but produced high pressure drop readings. Their results showed, that if you're after the ultimate if filtration efficiency, you ought to go for a cotton gauze filter (K&N). If you're content with a lower level of efficiency, but you'd feel happier knowing the filter could last longer without attention, you're better off with a foam filter. Hope this helps Damir Share this post Link to post Share on other sites
SPGTi 2 Posted July 11, 2007 Thanks Damir, Very helpful. Looks like I will stick with the K+N and keep a couple of spares for if it gets really dusty again. cheers Steve Share this post Link to post Share on other sites
welshpug 1,677 Posted July 11, 2007 how about using the original airbox? Share this post Link to post Share on other sites
SPGTi 2 Posted July 13, 2007 how about using the original airbox? As I said in the first post, I dont have the original setup. Anyone any thoughts on the HAlford own brand cotton gauze filters ? Only £26 ! Just maybe a bit worried on the filtration side of things. Steve Share this post Link to post Share on other sites
