I just purchased an injen cold air intake for a 350z 2003. I was wondering if i will be needing a bypass system or that water shield? My mechanic said that its actually not bad to have a little bit of water go into the engine... Is this true?

 

I mean I'm no mechanic, but I would think water in the engine would be bad. I mean sure, youre going to get some water in there due to environmental conditions, humidity and all, but I would think if you plowed through a puddle and sucked up water I dont think that would be good

 

Maybe i'm confused but what party of shorting out eletrical sensors or breaking down oil because of water is good? Not to mention the possibility of rust formation?

 

Don't sweat it. You need to drive into a lake or through heavily flooded roads to really suck any kind of water all the way to the engine. Basically the filter needs to be submerged, not splashed, to do any real damage.

Then again... better safe than sorry, right?

 

I have the injen CAI and got the water shield with it.. the guy said the exact same thing, it would have to be completly submerged for any kind of water damage.

 

My car has the Injen CAI and sometimes in Houston we receive a lot of rain at one time. I place my license plate in front of it so that it doesn't get hit directly by plashing water. From what I know, it might help a little.

 

"Your Mechanic" is an idiot! How much money does he stand to make off you by feeding you this crap!! Did he charge you to put Nitrogen in your tires too?!?!? I met a guy once that claims "his mechanic" said the design of the intake manifold on his his stock Sentra SeR produced 4 PSI of naturally aspirated boost at 5,000 RPMS!!


Anyways....as said before. You need to hit some serious water to suck it into the engine. Normal rain driving isn't gonna cause any issues.