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#1
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any real benefit to a K+N filter
as the title says. Worth the expence or not? Any performance gains in the real world?
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#2
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if you drive a suupercharged race car or a HUMONGUS vehicle with a gasoline engine there are mild benefits to the things. not on our cars though. the diesel engine is fuel managed, not air managed, so all you will be doing is ingesting increased particulate to the engine. and the motors have waaaay more air than then need with the mild horsepower they produce. put in a HUGE turbo and double the fuelflow from the IP and it'll still not be out performed by the K&N filter...
in other words, No. it won't help and it can hurt.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
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Any improvement is obtained at very high rpm where the stock airfilter on gasoline cars might be seen as an obstruction at high air flow rates. Basically enabled as a less than ideal filter with a lower contaminate capture rate by k&n. As mentioned no advantage using one especially on our engines.
Want more power? Do a good tune up by reading the archives of areas and methods of doing so. On most older cars will be worthwhile and make an improvement. Most of the tuneup approach is very cost effective on these engines. Primarily just time and effort. |
#4
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what about a K+N sticker on the air filter housing? It works for the ricers.
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#5
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Stickers = Free HP
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1991 560 SEL / 185k miles 1992 750il / 17k miles - project car |
#6
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K&N filters are proven to increase airflow and do work to increase power in diesel engines. It's a proven fact not worth arguing about
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i know Jim Smith. i don't actually know him, but I know of him
http://imageshack.com/a/img923/6201/RQ1H6A.jpg |
#7
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They work great at increasing internal wear. Higher flow with smaller pleats = bigger holes for dirt to get through, plain and simple. You just need a good paper filter with deep pleats and you'll be set.
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#8
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On this one I disagree with you Sev. Every year or so we have the local sales guy out here who is their agent. He can not provide properly conducted tests that show any improvement in operation from just the air cleaner change. For any one in dusty conditions they will cause increased ware to your motor. The motor manufacturers do not support their use.
Weird's idea of the sticker is a good one!! I have a car alarm sticker on each of our cars, never had a problem. You may as well paint stripes on your car to make it go faster.
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#9
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Not on a MB, the air filter assembly already flows more than enough air for the engine. The only way to get more power is by turning up the fuel, which increases the temps, which melts the pistons. MB did know what they were doing when they designed the air intake believe it or not. A redneck K&N slapped in there is not going to improve anything, and will just allow a lot more dirt through the engine.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) Last edited by pawoSD; 09-07-2010 at 06:54 AM. |
#10
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Still waiting for your proven facts' evidence...
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TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth |
#11
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I did not change my Air Filter to gain any power but what I did has a similar setup to the K&N so called performance intake manifolds sold on eBay. And, the Air Filter uses no Oil but is washable and made by a well know company.
Washable Air Filter and Intake Mod , With Larger Breather Washable Air Filter and Intake Mod , With Larger Breather K&N stuff for a previous thread I started Washing K&N air filters Washing K&N air filters
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84 300D, 82 Volvo 244Gl Diesel |
#12
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Not sure on MB but on VW TDI diesel putting K&N means get ready to change a lot of MAF's.
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1993 Mercedes 300D 2.5 1987 Mercedes 300D 3.0 2000 Volkswagen JETTA TDI diesel 5 speed 2002 Lexus ES300 2006 Lexus GS430 |
#13
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I wonder which would ruin Mercedes Benz engineering sooner, K&N, or WVO...
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___________________________________________ '86 300 SDL '83 300D Astral Silver/Blue 354k miles.. 326k miles.. http://www.peachparts.com/shopforum/...ine=1310252049 |
#14
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Not changing the brake fluid. Oops... wrong thread
Sixto 87 300D |
#15
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Dean,
Why not do both !! I think WVO would do it quicker unless you were in a dusty location.
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
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