![]() Yet in truth, that’s fair the aftermarket manufacturer has to cover all possibilities, and the type or condition of your current system is an unknown. In terms of adding power, so much depends on the design of the new system and on the design - or condition - of the old one.Īds for aftermarket cold-air intake systems often include ambiguous “up-to” horsepower claims, which are always red flags. But as to whether it actually adds any horsepower, well, that’s less of a sure thing. If your goal is to make a throatier intake sound, gain the benefit of a washable (rather than replaceable) air filter or to add a cool-looking touch under the hood, then yes - the aftermarket cold-air intake system will likely work for you. Maybe, but in regard to adding an aftermarket cold-air intake system, there are a lot of variables in the equation. ![]() In some cases, the filter is situated low or off to the side in the engine compartment, and it’s sometimes walled off from engine heat with a shield. Many of the latter include smooth aluminum or plastic air-routing tubes that are said to improve airflow, while at the intake end carry a large, washable air filter that’s often easier to get to than the stock, disposable paper filter. Some cars come with a factory cold-air intake, and many aftermarket companies sell bolt-on systems. (Note that air only contains about 21% oxygen, with nearly all the rest being rather useless nitrogen.) Since it’s the oxygen in the air that combines with fuel to make the engine run and produce power - and that air-fuel balance is kept at a relatively stable ratio - the more air you can get into the engine, the more power you can get out. Sometimes called cold-air induction, the theory behind a cold-air intake is sound: Cold air is denser than hot air, so cold air packs more oxygen into a given volume than does hot air. Related: What’s the Difference Between a Supercharger and a Turbocharger? It can do this by drawing air from above the hood, under the front bumper or a spot inside the engine compartment that isn’t as hot as other places. But obviously if their solution is "rip out and replace the ductwork" I'd prefer to have that be the last resort.The purpose of a cold-air intake is to find cold air in an otherwise hot under-hood environment. I do have them coming out next week for coil cleaning, and plan to get them to help my try to figure it out. Again, the leak is only from heavy rain, it's not a leak from the system itself (which is not on yet). Not a split system, central unit with condenser and blower and ductwork going into the house thru roof. Water getting into the return/ducts is a problem that needs to be fixed before it causes more extensive, expensive damage. I'd call an HVAC repair company if your troubleshooting has not solved the problem. It sounds like you do not have a split system. There is an insulated coolant pipe that runs between the two. Stan1 wrote:What type of system do you have? Often with central air it is a split system with a condenser outside the house (on the roof) and a fan/coil system inside the attic that connects to the return and ducting. My one thought was to put a bright camping lantern in the duct where the water has been, and then go up there at night and see if I can see light coming through somewhere.ĭoes anyone have any other ideas? It's really annoying. I'm at my wits end trying to figure this out and fix it.don't want to pay to have all the ducting ripped out. Also the dampness is only on one side of the duct, mostly it is dry. I've thrown roof coating on any surface where two pieces of ductwork are joined together.įrom inside, I've been able to feel some dampness on the upper (top side) of the duct, which leads me to believe that the rain is not, say, coming in from the underside. I've been up there numerous times looking for some sort of hole or opening. With heavy rain storms we're getting quite a bit of water leaking down. Over the years (system is 7 years old) we've had very, very occasional drips coming down from the opening of the return (where air is sucked in), usually only from severe storms with lots of wind. ![]() We have a central air unit on the roof with accompanying ductwork.
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