Do you block your hood vent over your CAI?

Jprada1210 · Jan 21, 2017

https://www.jlttruecoldair.com/ZenCart/index.php?main_page=product_info&products_id=799

bandit67 · Jan 22, 2017

I did a test while trying to decide if I was going to move forward with a CAI.

I have the Roush hood vents installed, so not sure if Ford's factory vents work the same way. I poured a 16 oz bottle of water over the vent into each individual vent opening, with a towel in the engine bay to catch the water. ALL of the water poured directly onto the fender support to the side and in front of the factory airbox. NONE of it came through the vent directly over the intake area.

ahl395 · Jan 23, 2017

I plan to block mine over my Procharger. I'm sure im overthinking it, but cold water dripping onto a hot metal supercharger doesn't sound good to me. Peace of mind! I would do the same thing for a CAI just in case.

steelersfan · Jan 24, 2017

Well, I'm currently rolling with a Roush CAI on my 15 GT, and unfortunately, here recently I've experienced 2 separate water intrusion events after heavy rain storms rolled through my area. I'm not speaking for anyone else but there's no doubt for me that water is getting through the hood vent and into my airbox. Maybe I'm just unlucky, but it's made me nervous enough, I'm switching over to a JLT CAI with a pre-filter installed. I really don't want to block that vent if I don't have to, but if it comes down to that decision, the vent opening will lose.

N123456 · Jan 24, 2017

steelersfan said:
Well, I'm currently rolling with a Roush CAI on my 15 GT, and unfortunately, here recently I've experienced 2 separate water intrusion events after heavy rain storms rolled through my area. I'm not speaking for anyone else but there's no doubt for me that water is getting through the hood vent and into my airbox. Maybe I'm just unlucky, but it's made me nervous enough, I'm switching over to a JLT CAI with a pre-filter installed. I really don't want to block that vent if I don't have to, but if it comes down to that decision, the vent opening will lose.

Why not just put a prefilter over your Roush? That's what I did with mine.

bandit67 · Jan 24, 2017

steelersfan said:
Well, I'm currently rolling with a Roush CAI on my 15 GT, and unfortunately, here recently I've experienced 2 separate water intrusion events after heavy rain storms rolled through my area. I'm not speaking for anyone else but there's no doubt for me that water is getting through the hood vent and into my airbox. Maybe I'm just unlucky, but it's made me nervous enough, I'm switching over to a JLT CAI with a pre-filter installed. I really don't want to block that vent if I don't have to, but if it comes down to that decision, the vent opening will lose.

Do you have the stock vents?

Genxer · Jan 26, 2017

tj@steeda said:
We have several cars in our Pompano, FL location with the CAI installed, going back to 2011.

We have driven them through rainstorms, hurricane-like weather & car washes ... several of them are daily drivers & we have had 0 issues with water causing an issue.

Best Regards,

TJ

I don't know why people would see much water driving through rain because air flowing over the car would tend to push water away from the vent rather than into it. Maybe it's different when just parked? I use those self serve car washes with a wand. Maybe a few drops gets in, literally. Of course I don't aim the sprayer into the opening either. I have my grill opened up more than stock so I bet more water comes in there than in the vent.

Bluemustang · Jan 26, 2017

I have JLT air intake and I drive through car washes fairly frequently. No ill effects and my filter is still blue.

steelersfan · Jan 26, 2017

N123456 said:
Why not just put a prefilter over your Roush? That's what I did with mine.

That's definitely one of the many tests I plan on performing as I flesh this out.

steelersfan · Jan 26, 2017

bandit67 said:
Do you have the stock vents?

Yes

Genxer said:
I don't know why people would see much water driving through rain because air flowing over the car would tend to push water away from the vent rather than into it. Maybe it's different when just parked? I use those self serve car washes with a wand. Maybe a few drops gets in, literally. Of course I don't aim the sprayer into the opening either. I have my grill opened up more than stock so I bet more water comes in there than in the vent.

On both occasions, my events happened when I was parked and it was a heavy downpour.

nrothaar · Jan 27, 2017

Jprada1210 said:
https://www.jlttruecoldair.com/ZenCart/index.php?main_page=product_info&products_id=799

What size did you buy? Is the JLT the same size as the Steeda?

Silver_Bullet_S550 · Jan 27, 2017

i sit in touchless washes all the time and no issue on my 16. my 14 was a different story because of the placement of the extractors. you should be fine unless you are aiming water directly at the extractor and holding it there

Do you block your hood vent over your CAI?

Jprada1210

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bandit67

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ahl395

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steelersfan

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N123456

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bandit67

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Genxer

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Bluemustang

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steelersfan

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steelersfan

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nrothaar

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Silver_Bullet_S550

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