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Old 07-07-2005, 03:20 AM   #1
Chi_San
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Default Need a snorkle... Submerged my engine bay

Yes, you read that right. I came extremely close to hydrolocking my engine the other day. Decided to see if I could make it across a puddle. About 10 feet from the end, it dropped off steeply. I hit the brakes and popped it into reverse.

My intake had gone completely under water. The water even cleaned the mat under my hood (well, made the filth on it even).

So, where can I get a cheap snorkle, or how can I make one?

Question two: since water went all the way over my alternator, should I be worried about it, and other accessories?

Question three: How much water does it really take to hydrolock an engine?
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Old 07-07-2005, 03:23 AM   #2
svek
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well a snorkle can be made somewhat easily if we are on the same page. just take some piping off of your airbox and run it up and out of the engine bay. would require cutting a hole in the side of the car. are we talking about the same thing?
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Old 07-07-2005, 08:25 AM   #3
ScoobyAntics
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Quote:
Originally Posted by Chi_San
Yes, you read that right. I came extremely close to hydrolocking my engine the other day. Decided to see if I could make it across a puddle. About 10 feet from the end, it dropped off steeply. I hit the brakes and popped it into reverse.

My intake had gone completely under water. The water even cleaned the mat under my hood (well, made the filth on it even).

So, where can I get a cheap snorkle, or how can I make one?

Question two: since water went all the way over my alternator, should I be worried about it, and other accessories?

Question three: How much water does it really take to hydrolock an engine?
My friend had a cold air intake on his WRX and went through a big puddle of water. Sadly it flooded the engine and the suby had to be put down. Sounds like a hate crime towards subys. You better not have flooded your engine or it is byebye. Have the car towed out and let it sit to dry a few days.
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Old 07-07-2005, 12:45 PM   #4
Shoebaru
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how deep was the puddle??
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Old 07-07-2005, 12:50 PM   #5
Laugh Damon
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So are you going to be driving through large puddles on a regular basis?

If so, svek has the right idea.

The intake has to be fully submerged to hydrolock, when there is no more air to combust.
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Old 07-07-2005, 01:14 PM   #6
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I've got a PDM Racing CAI on my car, which utilizes the OE airbox, making it really tough to suck up THAT much water...

...but...

...we had a torrential reainstorm the other night that made me pretty nervous. Thinkin' of putting the stocker back on there. Don't notice much difference anyway.

=S2=
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Old 07-07-2005, 02:13 PM   #7
b4wantab
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Be careful. You do not need to completely submerge the intake to hydro-lock an engine. Air is compressable, but water is not for all practical purposes. The right amount of water in the cylinder will do it. You can blow a hole in the block with water injection that is not set right. That hole is hydro-lock with some torque behind it.

Typically the air filter will catch most of the water and keep in from getting into the engine. Just as it does when it rains. Svek is right if you do this a lot you need to go up. Up to the roof.....

Peace,

Greg
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Old 07-07-2005, 06:29 PM   #8
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Quote:
Originally Posted by Shoebaru
how deep was the puddle??
I wasn't driving with him at the time.... I dont know. It was raining and he called me saying "OMG DOOD I JUST DID SOME STUPID #*&$ IM SO DEAD" I wanted to tell him "I told you that you couldn't handle your car"
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Old 07-08-2005, 12:40 AM   #9
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Quote:
Originally Posted by ScoobyAntics
My friend had a cold air intake on his WRX and went through a big puddle of water. Sadly it flooded the engine and the suby had to be put down. Sounds like a hate crime towards subys. You better not have flooded your engine or it is byebye. Have the car towed out and let it sit to dry a few days.
your friend should have invested in an aem bypass valve, for $40 it saves your engine from hydrolocking on a rainy day.
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Old 07-08-2005, 01:33 AM   #10
piker28
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suby gal needs to put the pic of her rs being towed out of water

i dont see peoples like desire to drive through a big puddle of water go around that ish if you dont know how deep it is DONT GO THROUGH IT
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Old 07-08-2005, 10:27 PM   #11
i_c_the_light
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Okay, I've done the same thing. I attempted to ford a flooded road where the water level was kneedeep and I was lucky not to hydra the engine. especially when my Legacy was actually FLOATING and water started to seep in through the door seals. I've been considering a snorkel too, but it looks stupid and there are other factors to consider next time I decide to ford water hazards. (I go up 4wd tracks in a LEGACY OF ALL VEHICLES!) A big one is the electrical problem. Generally, the first thing that'll throw up a CE will be the injectors (always every time I go through water that's deep enough). Then there's the MAP sensor too. The CE for the injectors goes away eventually once it's dried out and shouldn't hurt the car too much.
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Old 07-09-2005, 01:11 AM   #12
Brandon24
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are bypassvalves worth it? i know in turbos they rob power, but in n/a engine thier arent any down sides?
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Old 07-10-2005, 08:12 PM   #13
fantomas
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didn't people have problems with them shattering?
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Old 07-10-2005, 10:04 PM   #14
Burnout
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Quote:
Originally Posted by Brandon24
are bypassvalves worth it? i know in turbos they rob power, but in n/a engine thier arent any down sides?
Bypass valve, not Blow Off valve.
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Old 07-11-2005, 08:17 PM   #15
Chi_San
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Quote:
Originally Posted by Laugh Damon
So are you going to be driving through large puddles on a regular basis?

If so, svek has the right idea.

The intake has to be fully submerged to hydrolock, when there is no more air to combust.
Quite possibly.

FWIW, the water did go all the way up to the top of hood, right above the grill. The car was angling forward, due to a sudden drop. After I backed the hell out of that puddle, I popped the hood. Yes, water completely covered my intake. I have the stocker on right now. Which is a good thing.
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