seal cowl induction?

[BigTyla]

Actually come to think if it, I do partially disagree with your assertion of it functioning as an intake, but perhaps this is application-based only. Cowls can be induction-based or designed to extract hot air depending on their location, lending to my previous comment above.

If we're talking about the massive hoods with openings at the back near the windshield then I absolutely agree with you.

[BigTyla]

Yeah, definitely overlooked your particular application, Paul. With your hood the air will be coming through the cowl due to its proximity to the windshield as I specified in an earlier post. It would be best for you to seal it.

I confused myself as I immediately thought of the hood with the cowl in the middle instead of far back. Im looking at something like that foe my setup. A lot of high performance cars will actually duct the air from the front mount intercooler and radiator and completely seal it to tge cowl in the middle of their hood.

[anyonebutme]

Actually come to think if it, I do partially disagree with your assertion of it functioning as an intake, but perhaps this is application-based only. Cowls can be induction-based or designed to extract hot air depending on their location, lending to my previous comment above.

If we're talking about the massive hoods with openings at the back near the windshield then I absolutely agree with you.

?

cowl - definition of cowl by the Free Online Dictionary, Thesaurus and Encyclopedia. look at #3. Location of the "cowl" is fixed. If it's in the middle of the hood, then obviously it's not a cowl, it's an extractor.


If it's your job to know, you're doing a shit job at it, lol.

[PaulL]

Yeah, definitely overlooked your particular application, Paul. With your hood the air will be coming through the cowl due to its proximity to the windshield as I specified in an earlier post. It would be best for you to seal it.

That's what I was thinking. I guess I will need to find a thick piece of weather stripping. Any advice on what to use?

[PaulL]

Just thought of this. If I am able to use something to seal it up, what if I didn't completely seal it off all the way across the back of the hood. In other words, since the highest presure is central to the cowl, what if a little bit on the sides is not completely sealed up to leave a little room for venting when at a stand still. Good idea or bad idea?

[BigTyla]

?

cowl - definition of cowl by the Free Online Dictionary, Thesaurus and Encyclopedia. look at #3. Location of the "cowl" is fixed. If it's in the middle of the hood, then obviously it's not a cowl, it's an extractor.


If it's your job to know, you're doing a shit job at it, lol.

Careful buddy. I'm referencing the physical mechanisms you were talking about, not the semantics. Your explaining very basic fluid mechanics to an aerospace engineer. Forgive me for not being enthralled with your wisdom. No need to get personal.

Paul - your idea might work. Only way to know short of some ridiculous CFD testing is to try. Weather stripping would work great.

[PaulL]

Paul - your idea might work. Only way to know short of some ridiculous CFD testing is to try. Weather stripping would work great.

Well scratch that idea, its sealed off towards the sides. Now i've just got to find some thicker weather stripping.

[BigTyla]

There ought to be some foam-type substance you can use from Lowes. Or you could just raid LKQ for some stripping. My Explorer and 350Z both had sealing strips from the factory that would work great.

[IPD]

paul,

my $.02:

you want a vented hood--hood intakes (cowl or otherwise) are a bad idea--for our cars. you want all the airflow you can possibly get to go through your intercooler & radiator. you want to syphon that hot air out of the bay as fast as you can. any form of additional airflow into the bay will reduce how quickly said how air can be expunged.

[J. Fast]

Regardless of semantics, the viper hood is raise someting like an inch or two in the back. By your terminology, it appearantly serves as a duct being at the bottom of the winshield. Is it better to seal it off?

Tape some yarn, tuft wool, or caution tape (cut into 1/4" X 6" strips) to your hood every 12" on center in the field and every 6" on the perimeter and post up how the air is moving. Use backer rod or garage door gasket to temporarily close off the cowl and repeat the test. Prove the problem and then come back to discuss a fix.

... All this time to type winded questions for 5 minutes of your time and $5 worth of scotch tape, string, and gas for an empirical answer? Time waster, really.