Simple Question
 

With cold air intakes, you usually have a bypass valve so that water wont get sucked up into your engine. So, when you turbo your ride.......what if it starts raining cats and dogs while your driving.......water will most likely get sucked into the turbo, right?? well, is this bad or not?? will it ruin the turbo? i know most daily drivers will encounter this so what happens? is it bad or it doesnt mess up anything??

Re:Simple Question
 

i've never seen a bypass valve on an induction kit, have you seen one? where is it? what does it look like? Anyway a little water wont do the turo any harm it'll ---- the engine first, but dont put the filter somewhere where its gonna suck up puddles or your car wont like you for it

Re:Simple Question
 

how the ---- would u get water in your turbo?

water doesnt come up there unless u drive into a huge puddle and stop...

also if you got a decent filter itll catch most of the water (k&n).

u dont want water hitting your turbo fins. itll eat the blades.. imagine something turning at 100k rpm and it hit water droplets? hello pitting. just dont use a screen..

Re:Simple Question
 

What the ---- are you trying to say? Shortyz is right, the propellers + water = fucked .... and it would be pretty hard for water to get into the turbo .... A bypass valve usually connects the 2-piece CAI .... it's like foam basically, just catches water. - Matt

Re:Simple Question
 

if you're referring to hydrolocking the engine, i'v only seen this from cold air intakes that sit so low to the ground. i'v your turbo inlet is under the hood, unless you spray a hose in your engine bay while the car is running, you'll be aight ;)

Re:Simple Question
 

I thought a bypass valve was a secondary airway that allows air to flow through if the primary gets plugged(water). It could work with a turbo. You could use two of them even. One before the turbo on the intake side and one in the charge pipes before the throttle body. Then your turbo and your motor would be protected as long as you don't drive across a lake or something.
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Re:Simple Question
 

Bypass valve bitches!!

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2442401190

Re:Simple Question
 

The bypass valve doesn't "catch" the water, it simply allows air in once the resistance at the filter is great enough. It is harder to suck water up the tube than air, and once resistance goes up, the bypass opens allowing air to flow the path of least resistance. By the time water reached the filter on a normal turbo setup it is gonna probably be at the bypass valve too so there really is no point. The only way I would do this is if I had my filter sitting really low with the piping running vertical and the filter being at the bottom instead of running it horizontally from the turbo to the filter., and why would you want to do that? It'd be easier to just move the filter!

Re:Simple Question
 

Yes, so I was wrong, big deal. ;) - Matt

Re:Simple Question
 

I wasnt saying it would be ok to try an use the turbo as a water pump, surely little drops of water wouldnt do it too much harm would they?

Re:Simple Question
 

its only common sense..... when it rains there's usually puddles and you hit them all the time! when i wash my car and it rains when i'm driving, usually if you open the hood the engine in not dry ::) water goes everywhere when you're driving and especially when the turbo sits low near the bottom of the block....water is definatly going to splash on the filter of the turbo. thats just what i think. so it would eventually ---- up the turbo right? yeah, im using the k&n filter but i was just curious cuz the k&n wont stop big slashes directly on it....some water would still go through right?

Re:Simple Question
 

if you use a bypass valve on your charge pipes you will never enter boost..

common sense (but correct me if im wrong)

Re:Simple Question
 

(correcting you because you're wrong) :P

It will allow pressure inside the pipes. It only opens if the intake is plugged. I have no idea how to explain this, but it will work. The pressure(boost) will keep the flaps closed on the bypass valve.
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Re:Simple Question
 

corrected, but wouldnt you leak boost?

Re:Simple Question
 

To my knowledge, the bypass only flows one way. Air can get in, but not out - but I'm not t-totally sure on this point. Call AEM if you really want to do this, altho I think it is pointless.
No, it doesn't help with splashes. It only opens if the filter is restricted (dunked) enough to create a vacuum which will open the valve. Splashes aren't what hurt your engine. Moderate rain shouldn't even pose a problem really (like if your hood was missing). You need enough water to completely cover the end of the pipe before the engine creates enuff vacuum to pull it thru to the engine, otherwise it is just going to run back out or puddle while the air rushes past it IMO.

Re:Simple Question
 

Agreed. This is why it wouldn't leak boost. I'm not sure how much boost one of those things could hold so that might be the downfall. :-\
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Re:Simple Question
 

well, i wasnt saying i was gonna put the aem bypass or anything like that on my setup....i was just curious to see if it would be enough water to cause damage to the turbo,...of coarse it would ---- up the engine.

Re:Simple Question
 

I am now dumber for reading this... thanks.

Re:Simple Question
 

lol...

I have never seen a cai bypass valve with a "flapper", they are usually (at least the ones I have seen) basically a connector that can breath air (made of foam). If you submerge the end of your CAI in water, the vacuum will suck air through the bypass rather than sucking water into the engine. The bypass valves I have seen would definitely blow out if they saw boost.

this is pretty pointless though, there is no need to have a bypass on a turbo system. Just don't stick the filter 3" from the ground.

Re:Simple Question
 

thats what i thought also.

Re:Simple Question
 

There is actually foam over the flapper, so if the flappers open up, there is a simple filter to protect everything.

As seems to be the consensus here, it would be pointless for a turbo setup.