A vehicle snorkel is the land-based equivalent of the submarine snorkel which allows submarines to use diesel engines while submerged. Snorkels, when employed by vehicles with air-breathing combustion engines, sometimes allow limited deep wading capability for river crossing or military action operations, particularly within the case of tanks and other armored vehicles. In such cases, the snorkel supplies air for both the engine and therefore the sealed crew compartment, allowing total submersion. Often, the snorkel pipe is of huge diameter and fits over the crew hatch, to supply an escape route for the crew just in case the vehicle becomes stuck or disabled while underwater.
Military wheeled vehicles, like a HEMTT transport or a Unimog, are often capable of mounting snorkels for the engine air intake only, to permit them to battle through relative trouble, limited by the peak of snorkel intake and therefore the driver’s head (usually slightly but the peak of the roof). Generally, the crew compartment isn’t watertight, and also the crew is immersed, unlike in tracked vehicles, which are generally totally sealed.
For extreme off-road driving enthusiasts (or those that merely just like the way it looks), similar snorkel equipment is offered as an aftermarket accessory for several civilian four-wheel-drive vehicles, or available as a “universal” kit, and making a home-built snorkel system isn’t difficult for many vehicles. The snorkel is often routed out through one among the front fenders or directly through the hood, and up beside the “A” pillar to the extent of the roofline where it’s terminated with either a mushroom intake or a forward-facing intake, although an easy aftermarket cone filter on the tip of a versatile length of plastic tubing works even as well (it is additionally possible to easily run the tubing on to the factory air-filter box).
What are the Advantages & Disadvantages of Vehicle Snorkel?
A vehicle snorkel serves an even bigger purpose than simply enhancing an off-roader’s aesthetics. Similar to its name, a snorkel allows a car to ‘breathe’ when crossing water or treading sandy trails. This is often why it’s often one of the foremost preferred after-market accessories with serious offroaders who prefer to take their SUVs on extremely challenging terrain. But many of us select it simply to amp up the aesthetics.
Advantages of Vehicle snorkel:
1. The most important good thing about a vehicle snorkel is that it doesn’t allow water to enter the air intake system (since the air intake is now to a higher place from the ground). This way, your SUV is a smaller amount likely to stall when crossing water streams or perhaps waterlogged areas.
2. It also feeds the engine with relatively cleaner air instead of heavily polluted air that settles closer to the bottom. Also, because of the ram effect, the air entering the snorkel swirls violently sort of a cyclone, pushing heavy dust particles out of the snorkel through small vents.
3. Vehicle snorkels also are known for improving fuel efficiency as they feed more air into the combustion chamber, thereby improving the fuel-burning cycle.
Disadvantages of Vehicle snorkel:
Below are the disadvantages of a vehicle snorkel.
1. The most important disadvantage of a snorkel is that the installation part, which involves carving a hole within the fender and drilling bolts through the vehicle body.
2. Though a snorkel will let your car battle through water, it’ll not help if the water is deeper than the vehicle’s wading capacity. This can be because water deeper than the wading capacity can damage the electrical components and cause serious malfunctioning, while the snorkel could keep the engine running.
How does a Snorkel Work?
Combustion engines need air and fuel to work. The more air and oxygen flow into the intake manifold, the more efficient the combustion. A cold Air Induction System harvests fresh air at the roof level where it’s the least disturbed. This air contains fewer contaminants and is cooler than air absorbed from the engine bay. When the air is cooler, it contains more oxygen. Modern vehicles are fitted with engine management systems; these are computers that measure accurately in real-time all inputs available to the engine to boost its efficiency. Consequently, the provision of cooler air inflow ends up in more power and torque.
Three main parts constitute a snorkel: a “hat” or “Air Ram”, a Snorkel tube or the “Body” and an air cleaner either “flat or cyclonic”. The three parts are designed to enhance one another in their efficiency.
1. The Air Ram:
Air entering the Air Ram swirls violently, creating a cyclonic effect. The heaviest particles are ejected by the force to the periphery of the swirl. There, they hit the vertical ribs where atmospheric pressure takes over to eject them out of the four slots at the bottom of the Air Ram. At this time, the atmospheric pressure pushes them out. The finer particles that aren’t ejected are removed by the vehicle filter. Not all Air Rams are equal in performance. The Air Ram should have an open face without a screen because the screen deflects the airflow.
Now that the air is freed from large particles, it starts traveling down the snorkel body in a very line. The body could also be of two types, induction or non-induction. In the induction case, the air slows down because it enters in an exceedingly larger volume, the plenum chamber. The swirling created by the Air Ram diminishes, thus reducing friction losses. There, the air is buffered, immediately available for the airbox at positive pressure. The engine management system can use it readily. Not all bodies are equal in performance. In the case of a non-induction body, the air passes down on to the hood tubing and ducting into the airbox. While this method increases efficiency and engine performance, it’s not as effective because of the cold air induction type.
3. The Air Cleaner:
Commonly, there are two kinds of air filters fitted to cars by manufacturers: the Flat filter and the Cyclonic air filter, both are fitted with paper filters. While they conform to emission laws, they’re not fuel or power efficient. The Cyclonic is the simplest of the 2 types. Some after-market suppliers replace the paper filter with a foam filter to further increase airflow and thus the facility to the engine. However, what’s gained in power is lost infiltration. Generally, a paper filter will suppress particles right down to 30 microns while foam oil filters won’t filter below 40 to 50 microns. Larger particle sizes will increase exponentially the danger of injury to the facility of the engine.
How Deep Can Your Truck Go With a Snorkel?
Going Deep Using Truck Snorkel:
If you intend to venture across streams and dust bogs, there’s one glaring question to ask. How deep are you able to drive with a snorkel? Rooftop-height designs may cause you to think you’ll practically submerge your vehicle.
However, the overall consensus among enthusiasts is to stay the water level below the peak of the inside electronics. So while your truck snorkel may have a water-level limit indicated, remember all the opposite components of your vehicle that will tackle damage below that level.
If you don’t have a truck snorkel installed, don’t drive through any water above your headlights. Combustion is intended to compress air and fuel.
Any water that gets in there’ll seize up your engine. If you’re unsure about water depth, consider wading in yourself first. Anything above your waist is maybe too deep for a truck without a snorkel.
The bottom line is, not everyone needs a truck snorkel. However, if you have got plans to cross a creek, test your four-wheel-drive on a muddy back road, or have the itch to push your ride to the max, you can’t lie without one. If you don’t arrange to go extreme along with your truck, a snorkel can, at the very least, keep your engine at top performance wherever you drive.
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