DIY: e550 air filters with K&N filters
#26
Senior Member
I had lost this link to the study of air filters, some surprising results here:
http://moto.lexp.net/wiki/ISO_5011_D...er_Test_Report
http://moto.lexp.net/wiki/ISO_5011_D...er_Test_Report
#27
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1953 300 Adenauer, 1971 300 SEL 6.3, 1975 600, 1978 450 6.9
I had lost this link to the study of air filters, some surprising results here:
http://moto.lexp.net/wiki/ISO_5011_D...er_Test_Report
http://moto.lexp.net/wiki/ISO_5011_D...er_Test_Report
#28
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2014 Mercedes-Benz E550 4Matic, 2010 Subaru Legacy 3.6R
[QUOTE=CEB;5740597]Nice write up but let's be realistic here - a 15% increase in gas mileage is impossible.
Thanks for a fine post. Air filter technology is well known to all the major filter producers. The most common limiting constraints to better filtration are potential air flow restriction, money, and installation space. The K&N filters represent one technology that can be used (oiled filtration media) but not one that many original equipment manufacturers have chosen, including those that make very expensive commercial engines. Mercedes has chosen a very excellent oil filter media and I have some doubt that they would have deliberately used an air filter that is easily surpassed by the aftermarket.
Thanks for a fine post. Air filter technology is well known to all the major filter producers. The most common limiting constraints to better filtration are potential air flow restriction, money, and installation space. The K&N filters represent one technology that can be used (oiled filtration media) but not one that many original equipment manufacturers have chosen, including those that make very expensive commercial engines. Mercedes has chosen a very excellent oil filter media and I have some doubt that they would have deliberately used an air filter that is easily surpassed by the aftermarket.
#32
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2014 Mercedes-Benz E550 4Matic, 2010 Subaru Legacy 3.6R
Car makers usually take a systems approach to car development and try to optimize the thousands of parts that are involved. I doubt that any easy major gains have been carelessly overlooked by Mercedes-Benz engineers.
#33
Senior Member
So are cold air intakes and it doesn't get any less restrictive than this:
[/QUOTE]
I knew about the filters being of little to no value but was surprised by the cold air intake results. Thanks for the post Greg.
I knew about the filters being of little to no value but was surprised by the cold air intake results. Thanks for the post Greg.