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Sedans Hyundai Azera Hyundai Azera Air Filter Benefits?
64 messages, Last post on Jun 04, 2007 at 12:40 PM
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Replying to: derrelhgreen (May 30, 2007 9:06 pm) If a vehicle has more air than it needs, then why is there a need for turbo & superchargers? If they introduce more air into the cylinders, creating more power...then you've basically contradicted your point about increased air flow not giving your engine more power. So you're right, it's not about the amount of air available, it's the rate at which it is fed into the engine. A less restrictive filter would allow the air to flow faster into the engine than a filter that restricts the flow. Sorta like what happens with a vacuum cleaner hose. With nothing in the way, it picks up with ease. Hold a piece of cloth in front of it and it'll still pick up, but not as effeciently. Most CAI systems are contained within the engine bay, so there is no cooler air going into the engine. Only way that will happen is if it is piped from outside the vehicle directly to the CAI system. Hmmmmmmmmmmmmmmmmmmmmm.....
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Replying to: floridabob1 (May 31, 2007 2:26 am) Seems that you are smarter than your average bear!  Thanks for explaining in words that I did not have. 
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Replying to: cobrazera (May 31, 2007 2:44 am) When we do that, not only are the emissions changed (raised)but the fuel efficiency is lowered in most cases. With gasoline being as expensive as it is now, and who knows what will happen 'down the road,' we sure do not want to do anything to lower our MPG, do we? I paid $3.379 for premium (91 octane) at Costco # 432 in Corona CA yesterday, and that is down slightly from what it was earlier this month. When a thinking person realizes how often he must or does change his air filter and how little that cost is, especially when he buys the replacement at Pep Boys when they have a coupon with a rebate or some such sale, that expensive K & N filter does not seem so attractive now does it? Throw in the extras for the K & N such as the special oil that you must spray on the element every time you clean it, the mess involved when you must clean it, and you must, and I think it is easier and less expensive to simply go out and buy a paper element and open up your air box, take the old dirty element out, perhaps vacuum out the box, wipe the dust out of it, throw in a new element and be done with it. Not to be stupid here, but do any of you think I should change out the original paper element filter of my seven year old 2000 Ford Focus Kona model that has 36K miles on it. It runs very well. Tanked up yesterday and it got 33.04 mpg. There is plenty of power. Catches 6800 rpm in first gear so fast I cannot believe it, and scratches rubber when shifted fast going to second gear, so there can not be any restriction as far as air flow is concerned. Oil analysis report from Blackstone Laboratories is 'in the mail' so I will soon know IF there is any silicon (dirt) problem within the engine.  Sorry for taking up so much band width!  Hope some will find what I have said interesting? 
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Replying to: allmet33 (May 31, 2007 5:50 am) It just forces the air into the engine at a faster rate, right? In which case, a less restrictive filter would allow the air to pass through at a higher rate. I will try to straighten this post out. IF I leave anything out, somebody jump in here and help me, please. Zora Arkus-Duntov said it best when he said: "It's a Heat and Pressure Machine. As long as it can stand the heat and the pressure, it does not care." Or something to that effect. I was not there when he said it. A great engineer and thinker who designed the Ardun heads for the Ford flathead V8 and was later responsible for "warming up" the 'Vettes for GM. Passed away (sad loss) eleven years ago. What a brain! "A faster rate" No. But under higher pressure. Think of a supercharger or turbocharger is being nothing but a pressure pump, that forces more air under pressure (higher than atmospheric) into the intake manifold and therefore the cylinders. No longer is the engine dependent on the current atmospheric pressure to be able to "breath" but with this pressurization, it is able to use more air (oxygen) and therefore produce more power. Your air filter does nothing to raise that pressure. It only 'filters' the air to remove dirt, bugs, or anything you don't want to enter your motor. The idea is for the filter to do nothing but what it is supposed to do, period. It cannot raise the pressure, but if it is not big enough or efficient enough when used in your car, it can be a restriction because it will be a restriction to normal atmospheric pressure. Engineers go to great lengths to make sure that your stock air intake filter is as efficient as possible, so forget the hype that K & N and others are trying to lay on you! Hope I did not leave anything out, but I am afraid I probably did. Sorry.
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Replying to: derrelhgreen (May 31, 2007 8:23 am) A filter can only be but so efficient as it will block some air flow. By removing this blockage with something that's less restrictive, the air enters at a more rapid rate. Not as fast as what a turbo or supercharger would make it, but it's a non-mechanical concept of what the turbo/supercharger does. Of course because it doesn't compress the air like a turbo/supercharger would, you don't get the same type of boost out of it. However, the key to more power is to get more air and more fuel into the cylider for a bigger combustion to happen. Are you telling me that there is no difference in the amount of air getting into the cylinder between using a regular filter as opposed to one that's less restrictive? |
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Replying to: allmet33 (May 31, 2007 8:40 am)
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Replying to: allmet33 (May 31, 2007 5:50 am) Unless that is true, your argument makes no sense. And even if it is true, it does not make much difference. A supercharger of turbocharger pressurizes the air, making it more dense, making its oxygen content higher than air coming into the motor under normal atmospheric pressure. A free flowing air filter does NOT do this. |
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Replying to: allmet33 (May 31, 2007 8:40 am) Amen to that! Said in a few words, and to the point! Are you telling me that there is no difference in the amount of air getting into the cylinder between using a regular filter as opposed to one that's less restrictive? Yes, that is exactly what I am saying. I proved to myself more than 10 years ago with my Impala SS that there was no loss of horsepower between a used stock factory installed A/C filter with 17K miles on it, and no filter at all. Now tell me about restrictions. There is no difference between your stock air filter system in most modern vehicles and these overly hyped and heavily advertised K & N supposedly "less restrictive" after market over priced junk filters. If you believe that these K & N filters, or any other heavily promoted after market filter is less restrictive, I know of a simple test that you may want to try. This little gauge will cost you less than the price of a K & N filter, and you will be able to keep it and tell whether your stock filter is becoming dirty and therefore clogged and in need of replacement.
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Replying to: jaymagic (May 31, 2007 10:18 am) |
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Replying to: derrelhgreen (May 31, 2007 10:42 am) The more something is advertised, the less it is actually worth. |
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