I got a cold air intake installed on my vehicle and don't have any AEM bypass valve installed, for preventing hydrolock. If I drill a small hole(e.g 1cm) on the intake(short ram section) can that prevent hydrolock or do I still have to get one of those bypass valves?I'm looking for any alternatives, instead of those AEM bypass valves and was wondering if drilling a small hole in the cold air intake could help in preventing hydrolock, just as good as the AEM bypass valve.
By far the safest and most sensible way is to stick with the cold air intake that came with the car. You can't buy a better one for less than $1000 anyway. The stock intake has preheat to warm up the engine more quickly, improving fuel economy, and has been tested with the actual car model to minimize the risk of sucking up water. That is not a foolish worry, either. Our New Guy at work had a Scion with a KN intake that he tried to drive through water that was deeper than he thought. The engine did not survive it.
if you drill a hole in your intake, your gonna have a air leak and thats the last thing you want, you dont have to have a bypass valve , u only need it when its raining
I okorder (i think thats it) for them, Im pretty sure thats where I saw them. Whatever you do though, dont drill a hole in it.
This would not need a bypass valve. Short answer, NEVER drill holes in your intake behind the filter.
Only version 1 of the AEM CAI's could even use the bypass valve. Version 2 will not work with this bypass. This bypass valve is pressure sensitive and set up to open if the air flow was blocked at the filter. It also has a foam filter on it to still give you some filtration of the air. You do not want to drill a hole in the intake. This will allow unfiltered air to enter your intake and reduce the efficiency of the intake system. I'm not sure what kind of car you have this system on, but on my Accord, the filter was moved down inside the front bumper just in front of the drivers tire. It is surrounded by plastic and has minimal chance of any water splashing in to it. The only way I can see water getting to it is if I were to try and drive in to a large Pool of water in which it would have to be higher than the floor of the car. Anyone who would even attempt such a thing would be a fool in the first place for trying to run through such high water. If you have the Version 1 AEM, get the bypass valve. Don't drill holes. If you have the Version 2 which can not use this valve, just don't try to use your car as a boat. You shouldn't have any problems. TGP
