Vented Hood Water Question

kjz

Hello, I just got a VIS carbon Fiber Vented hood yesterday and I was wondering if it would be a problem when water gets into specific part. I have attached picture and circled in red pen.

Will there be problem if water gets on there?

Please help!

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	vented hood.JPG (184.3 KB, 207 views)
	vented hood1.JPG (171.3 KB, 128 views)

kjz

This is how vented hood looks like

Attached Images

2014-07-13 21.48.17.jpg (241.8 KB, 209 views)

DEpointfive0

OP, that's the least of your concerns. Those are grounds.

Intake should be a concern and alternator. And those aren't really concern either. So you should be all good

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theDreamer

These two images should help.

First up is the VIS I believe, closes shot I can get to that area:


Second is a shot with areas where the Seibon TS hood vents are located which is about on par with the VIS hood locations (just smaller vents):

Attached Images

Vent Placement.jpg (164.3 KB, 519 views)

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phunk

As DE mentioned, your circled area is of no concern at all. Getting water there is no worse then getting water anywhere on the chassis of the vehicle.

For typical rainfall you dont really need to be concerned about anything unless your air filters are gratuitously exposed or become submerged.

In those occasional water apocalypse from the sky moments, I might be concerned with standing water buildup around certain engine components and avoid driving the car. Such as perhaps in the valvecover area and dripping around the coils into the plug wells and hell even then I dont know if it would matter. Last time I *personally* saw a wet engine cause problems was when cars had spark plug wires.

About 50,000 miles with my vented hood (Seibon TS Style) and the only annoyance I have is my engine is all water spots and dried car wash soap.

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JWillis72

I have the Carbon Creations Hot Wheels (I'm not sure they are the same) hood shown above and the only two problems its caused were both mods to the car. The Stillen supercharger has a vent on the top that allows water into the oil, and a dead Aquamist relay that got wet. If the car is stock you shouldn't have any problems, I fixed both of mine with sheet metal covers.

wheee!

That hood design is almost 'over-vented'... I prefer the JP-R hood for effective venting with minimal water intrusion...

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JWillis72

The vents are big on my hood but I was looking for max air flow for cooling on the track not looks and it does a great job at that.

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photo(4).jpg (809.2 KB, 104 views)

Arrvaxx

I feel like those vents are too far forward. Sure, they vent the air coming out of the radiator but they don't do anything for heat further back.

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wheee!

My car is NA, but those vents on the sides sit just in front of the headers behind where the stock air boxes go. The centre vent is slightly behind the rad and before the coolant overflow. The heat coming out of those is crazy after a long drive. I have also had rain gather on the hood while at a stop light. As soon as a pulled away, the rain literally shot out of the hood with the force of the air coming out of the vents.

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synolimit

Further forward the better. Further back you actually hurt the car as you block off the air moving through the radiator. The back air is actually sucked out of the engine bay and under the car. Airs trying to go through but it's hitting a wall of incoming air from the back. This is why the Evo, new corvette etc all have the vent as far forward as possible. Its a high vs low pressure area thing. These hoods with all the venting and huge openings all over probably do more harm than good. Its just a show peice. Hotwheels didn't use a multimillion dollar wind tunnel like Chevrolet did.

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phunk

Good post but I would also consider that different style vents will have individual perks at different levels of airflow/speed. Whether the consumer matches the airflow modifications to their application or not, or even has the information to do so... probably not in most cases. But we can at least be fairly certain there is another dimension to it.

Example, I am personally guessing that the vents of larger surface area, regardless of consideration to placement, should allow more heat to escape in applications such as idle, auto-x, and other "low speed" environments where there is not enough airflow to achieve a venturi effect or buildup of air pressure at the cowl. What speed these events occur, I have no idea. But I would say that there is probably a changeover that occurs somewhere on the speed axis where the style and placement of the vents needs to begin shifting to avoid areas of high pressure, or other concerns that I am unaware of.

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Rusty

Yep. The base of the windshield is a high pressure area. That's how cowl induction hoods get their air for the intake. If the vents are at the very rear of the hood. Don't think they would be good at moving air.

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SouthArk370Z

Short term, water on the ground crimp connectors is no problem - if it shorts to ground, who cares? Over time, it will promote oxidation/corrosion of the wire and connector. Shouldn't be a problem unless you drive in a lot of rain. A good coat of paint or other non-permeable coating will help but probably not worth the effort.

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Arrvaxx

An interesting thread would be one that showed what was under the vents of different hoods. I'm going with the Varis Arising II. Going to try and find a top-down and see if they sit over my turbos.

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