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Old 06-16-2017, 08:50 PM   #1
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2003 Ford Focus SVT (CAI/Hydrolock question)

Just has a cold air intake on it. Am thinking about running the filter through my hood but I'm worried about hydrolock with the heavy rains I get in Michigan and indiana. If I run into heavy rain will the filter be soaked and start sucking in water?


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Old 06-16-2017, 09:13 PM   #2
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Moved this to the SVT Performance section where you can find engine related performance info. including that on intakes.

That done, my personal question would be "are you nuts?" Cut a hole in the hood to have an air filter stick out?

You may not get hydrolock while running, though you WILL end up ingesting some water. But you may also get hydrolock when parked in the rain, or at least enough water in the intake to get it disastrously as soon as you crank the engine.
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Old 06-16-2017, 09:20 PM   #3
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I was thinking about putting slits in the house from the TB to the filter to allow the water to drain out. But with it being a SVT can't really run a cold air without spending $300+ and 2 without running it next to the headers and radiator
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Old 06-16-2017, 09:31 PM   #4
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That's perfect, cut holes for unfiltered air inlets.

An aftermarket CAI puts the filter low in the engine compartment to get cooler air, a short one with the filter mounted high is called an SRI (short ram intake) and can get warmer air when driving slowly.

The stock system is actually best for the SVT when using an aftermarket filter, includes a cold air inlet that takes air from just below the hood in front of the radiator.

You mention $300 for an intake you might want, how about counting the cost of a color matched replacement hood (to replace the hole cut one) and budgeting for a new engine?

Keep an eye out for a stock airbox system in the BST section for the cheapest upgrade, if you currently have an SRI type. COULD buy pipe/hose to relocate the current filter if SRI, but CAI isn't the greatest for heavy rain if you might go through puddled water.
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Old 06-16-2017, 09:41 PM   #5
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Would running a hose through my fog lights hole work as well as a cai? And instead of running my K&N filter run a spectre filter instead so that way the air is still going through the filter and is still being cooled from the outside of the car?
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Old 06-16-2017, 09:51 PM   #6
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IDK how you imagine to make an inline air filter from a Spectre brand one without building an air box.

Ducting outside air to the filter area might be a slight improvement, but not effective when you need it most (stop & go driving).

Popular idea, just not as useful as imagined.
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Old 06-16-2017, 09:53 PM   #7
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SVT Focus makes the best Performance with the stock air box and a good drop in filter , why mess with whats working and make it slower

Tom
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Old 06-16-2017, 09:53 PM   #8
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Bc some spectre brands are designed to have one line from outside into the top and the typical line from the base
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Old 06-16-2017, 09:55 PM   #9
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Bc my box has a cracked down the side so I have to go another route
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Old 06-16-2017, 10:00 PM   #10
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Quote:
Originally Posted by 1turbofocus View Post
SVT Focus makes the best Performance with the stock air box and a good drop in filter , why mess with whats working and make it slower

Tom
This^^^^
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Bc my box has a cracked down the side so I have to go another route
Go found another one is the simplest thing you can do...
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