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Modern factory air intakes typically have holes somewhere in the intake tract to reduce the chance that the engine will ingest water into the engine should the end of air inlet pipe go under water. Since water in a car engine cannot compress it will cause the cause the engine to fail (bent rods and snapped crank shaft). Think of it as a straw with a crack in it, you can still suck some liquid but you will get a lot of air. I am not saying this is exactly what the holes are, but probably is the reason for the holes. My 2 cents and I am sure someone will correct me if my 2 cents are wrong. 😉
Modern factory air intakes typically have holes somewhere in the intake tract to reduce the chance that the engine will ingest water into the engine should the end of air inlet pipe go under water. Since water in a car engine cannot compress it will cause the cause the engine to fail (bent rods and snapped crank shaft). Think of it as a straw with a crack in it, you can still suck some liquid but you will get a lot of air. I am not saying this is exactly what the holes are, but probably is the reason for the holes. My 2 cents and I am sure someone will correct me if my 2 cents are wrong. 😉
What mechanics call “hydro-lock.” Last decade saw a lot of that with Acura RSX Owners swapping out the factory air intake for the much shorter aftermarket short air intake and then driving through deep water. Engines were hydro-locked and Dealer Service Managers had to deliver the bad news to customers —“ No Warranty Coverage for that failure.”
02-28-2019, 01:38 PM
small holes in intake duct
