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14

Does this mod ever give a measurable increase in power? tl;dr: yes, sometimes it works well. But... Your picture is a good illustration of some of the problems with just saying "cold air intake" and expecting that to mean the same thing to all people. Let's break down the pieces of the puzzle and talk about how those might help or hurt: Filter: ...


7

You want to be getting as much cold air as possible, as colder air is denser and thus gives your engine more oxygen for a given volume (and thus more power/better efficiency) - that's why the filter in the picture is surrounded be shields, to prevent it drawing in warm air from the engine bay - I'd assume that area in front that filter is open to atmosphere ...


7

If it was just a normal paper filter it is fine. If it is a re-usable washable filter then then I would suggest a wash and oiling procedure according to the manufacturer instructions.


7

Normally the idea is to get more air into the engine using a less restrictive air filter. As an engine is basically an air pump, getting more oxygen and more fuel into the engine usually equals a bigger bang and thus hopefully more power. That said, in order to get a meaningful improvement using a performance air filter, the main restriction needs to be the ...


7

Are you talking about the in-cabin air filter, or the engine air filter? In either case, the answer is no. I mean you can do it, but the filter will not work like it is supposed to afterwards. The reason for this is they are made of paper. When you get them wet like you are suggesting, it destroys the element. As to the why you have to change them, once ...


7

An air filter that is severely restricting air flow can increase oil use. It is not common. If the air filter is restricted enough a low pressure condition is set up in the intake tube and PCV system. Oil is pulled from the upper valve cover oil/air separator cavities through the PCV fresh air hose into the intake tube. If this is happening there will be ...


7

The point is to feel like you've done something cool to your car and freed it from the shackles of The Man/the OEM intake. The primary benefit of Cold Air Intakes is to the bank account of the kit manufacturer, the secondary benefit is your car making a nicer noise, if you like the sound of an aftermarket intake. There's been a few debunkings of CAIs over ...


7

It depends. Just because an intake can flow more air mass doesn't guarantee that the engine will utilize it. The intake is part of a system of components. The engine produces power by managing air flow into and out of the combustion chamber. There are usually other actors involved: Intake side. Carburetors, throttle bodies, intake manifolds, intake ...


6

Other possible sources: Vacuum Leak Other Ignition item (Plug Wires, Distributer, etc.) Really poor fuel Air Filter Blocked Exhaust Blockage I would start with the spark plugs. Take them out and see if they can give any indication as to the true problem. See this answer for more info (While you have them out, replace them if you need to). Then start ...


6

I've never experienced performance drops with good renewable filters. Most engines perform slightly better with a good filter in especially the low and high RPM ranges. A bad/cheap filter is not a good choice, some have too much oil (to catch the dust) and this clogs up the AFM until eventually your "check engine" warning light turns on. A cold/open air ...


5

Since its paper based, your ability to clean it is somewhat limited. Mechanically agitating it (i.e. with a brush) is iffy since you run the risk of damaging the filter element. You can try shooting compressed air from the opposite direction of the filter but that really only removes the larger chunks of dirt, and if you're not careful, can also damage the ...


5

On my most recent car before my current car, I put in a K&N air filter. I believe I saw a minor improvement in horsepower, but it could also have been the placebo effect. As to your questions: You can save money with a K&N as long as the following are true: You clean/oil the filter at the recommended intervals You don't live in an excessively ...


5

If you use more than one air filter, you will make it harder for the engine to suck air into the intake manifold, meaning you will lose power. Less restrictive filters will give you more performance, but will allow more dirt into the engine. If you use something like a cone filter (like in the second picture), you will have a change in sound, especially ...


5

Jetting a carburetor - short answer You will require two things more than likely. A size larger main jet An adjustable needle jet Smoothbore Carburetor Image Your main jet sits in the float bowl, it's number 11. Off idle and higher the main jet contributes more and more to air fuel mixture as you open the throttle to wide open where the main jet is ...


5

Specifically a foam filter for a lawn mower needs oiled, but just lightly. A foam filter lacks the ability to stop small particles as compared to a paper filter. The oil is added to make the filter "sticky" to these small particles giving the foam filter better filtering capability. As far as major engine damage, probably not. Worst case scenario the engine ...


5

If the prints are just on the seal, I wouldn't worry about it. You could possibly take some gentle cleaner (Windex or Formula 409 or the like which will clean grease) and make it pretty again. It won't, however, decrease the function of the filter in any way. If they got a bunch of oil on the element itself, you might want to think about it. Really nothing ...


4

If driving with multiple filters, your vehicle will lose performance. Your car will have a greater restriction in the intake system from having to pass through two separate elements. You would, however, have cleaner air coming into the system, but at a cost of the performance. You'll have to have more gas pedal to compensate which would cause other issues as ...


4

Unless you're going to spend a lot of money on a cleanable K&N type filter, I'm not aware of any real benefits to upgraded air filters - it's basically a folded sheet of cardboard after all... What is worth it, however, is getting a better quality oil filter. Many cheaper oil filters miss out the anti-drain-down valve that is commonly found on OEM ...


4

The exact answer to this is - It Depends... The reason for this is that your existing ECU, whether it be on a bike or in a car, has a range of inputs and a range out outputs, and a mapping between them. As long as your inputs are within the ranges expected, it may well be able to cope with the changed architecture, however there are two common problems: ...


4

Almost never? Mainly because they're really a 'hot air intake system'. This is especially true for cars using forced injection due to the high under-hood temperatures. If you want to reduce intake restriction look into a less restrictive 'panel' filter like a K&N. Even then, it really only matters if your car is intake (vs exhaust) limited and your ECU ...


3

Iwould say yes but only from the ecological point of view.Eliminating the solvents needed to clean the filter and the ease of replacement would be two strong points.


3

I agree with NoCarrier, you really have to tackle the source of the problem, which is ability to get a new filter. I'm iffy about recommending eBay, but this guy has a stellar rating, and seems to specialize in motorcycles. He has a listing for this filter with a quantity of 10+. Communicate with him and to see if this will work out for you, and consider ...


3

A quick search appears to indicate that this is a common issue on this particular model of Civic. The bolt does not want to come out all the way because the heat from the engine over time has liberated the plastic female housing that it threads into. To remove it you need to figure out a way to keep the plastic from spinning when the bolt is turned, as per ...


3

The working cycle of an 4 stroke internal combustion engine is like: (1) Inlet of the fresh air (2) Compression (3) Working Cycle - expansion (4) Exhaust Cooler intake air is especially beneficial for part (1). Since cooler air has a higher density, it means that the gas velocities at the inlet are lower. Therefore lower pressure losses at the cylinder. ...


3

I didn't see anyone mention it but I believe any increase in power would only be at wide-open throttle (WOT). So if you are racing or really aggressively pulling away from stop lights or accelerating, maybe it helps. Day-to-day driving at less than WOT the engine management system will keep the air-fuel ratio at an acceptable value. If it doesn't get enough ...


2

I have a Yamaha SZR bike, 4 year & I use to change it every 8000 KM. It has orange paper air filter. I use a method to clean air filter every 1500 KM & it really works if you do it carefully. It takes time. Put the air-filter for 3-4 hour in detergent solution in a bucket & you can see a huge amount of dirt & dust in the bottom of bucket. ...


2

Hold it up towards the sun .If you canot see the light shine through, replace it


2

I used to change mine at the factory recommended change interval (severe service, since my car sees lots of dirt roads). I believe that was 15k miles. It was always pretty dirty looking when removed, but no differences in performance or MPG noted due to replacement. Upsides to more frequent changes: - Cleaner air should mean more MPG and performance - Do ...


2

I usually change mine as part of any service, so generally twice a year. Obviously this will depend on how much you use the car and what sort of environment you're in - if you drive it a lot in dusty conditions you may well need to do it more often. As Gabriel says, its a cheap thing to replace, and a clogged filter will adversely affect your power and ...


2

I spent several weeks researching this issue not that many years ago. I read all sorts of claims and "proof" that a $50 air filter will improve your vehicle's acceleration, horsepower, torque, longevity, etc. There would always be something about the "proof" that seemed questionable. Then I read a most insightful comment. The insightful author pointed ...



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