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Unread 05-17-2011, 12:54 AM   #31
lilnapsak
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Quote:
Originally Posted by Kitchen View Post
mine is doing pretty good, its alotttt of up keep to keep it running right. my autoshop teacher at my high school designed and guided me threw building that set up. it works great, no B.S.
what kind of up keep are you talking? and whats your results prior to the setup and now? OP-sorry to hijack this thread a bit

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Unread 05-17-2011, 10:03 AM   #32
dkg4244
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Take a look at cowl snorkels. It seems to be the best solution for a Jeep that sees the dirt. The K&N and other cone filters don't filter as well as the stock paper filter setup. My cowl snorkel cost me $15 and retains the filtration of the stock setup while adding water fording ability. I have dunked it up to the hood in water, driven in snow, driving rain, mud, and my filter has never gotten wet.
http://www.jeepforum.com/forum/f11/d...orkel-1053289/
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Unread 05-17-2011, 11:52 AM   #33
Masaga91
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Quote:
Originally Posted by dkg4244
Take a look at cowl snorkels. It seems to be the best solution for a Jeep that sees the dirt. The K&N and other cone filters don't filter as well as the stock paper filter setup. My cowl snorkel cost me $15 and retains the filtration of the stock setup while adding water fording ability. I have dunked it up to the hood in water, driven in snow, driving rain, mud, and my filter has never gotten wet.
http://www.jeepforum.com/forum/f11/d...orkel-1053289/
I like the snorkel idea, but i never drive on water jajaja
But with the cowl snorkel where comes the cold air???
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Unread 05-17-2011, 09:34 PM   #34
dkg4244
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The cowl snorkel intakes air through the vent at the base of the windshield, giving you nice cold air.
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Unread 05-17-2011, 09:47 PM   #35
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Quote:
Originally Posted by DualPurposeXJ View Post
Ya it should help but what I would recommend is to re-route the intake into the cab for cleaner/cooler air
like so
loud, lol
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Unread 05-18-2011, 09:41 AM   #36
Masaga91
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Quote:
Originally Posted by dkg4244
The cowl snorkel intakes air through the vent at the base of the windshield, giving you nice cold air.
And it really works???
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Unread 05-18-2011, 09:58 AM   #37
GregB_00XJ
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Originally Posted by Masaga91 View Post
And it really works???
Very well from what I hear.
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Unread 05-18-2011, 04:20 PM   #38
Masaga91
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damm i think i'm forgetting the cold air intake and do the cowl intake mod

but the cowl mod keeps the same performance or improves it?
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Unread 05-18-2011, 08:45 PM   #39
donthelegend
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Originally Posted by Masaga91 View Post
damm i think i'm forgetting the cold air intake and do the cowl intake mod

but the cowl mod keeps the same performance or improves it?
Very few people who do a cowl intake are doing it for the performance. They are usually doing it to raise the intake for water crossings. So, most could care less about performance (well they probably do care, but improved performance is not their goal with the modified intake).

To answer your question though, theoretically you are pulling colder air, which is a plus for performance. you are also usually adding an extra sharp bend, which may slightly hurt performance. All in all, probably no noticeable difference.
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Unread 05-18-2011, 09:11 PM   #40
robsjeepxj
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I did mine strickly for performance purposes and yes it does add power. I love when people theorize about stuff they've never done. And where's the added sharp bend? Stop it please.

Mine goes straight from the throttle body to the cowl and make a slight maybe 10* turn into the filter. The tubing is smoother, no flexy hoses, and the filter flows more are so there's is one way and then there's the fact that your getting colder air, hundreds of degrees colder probably, so that is a big help too.
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Unread 05-18-2011, 10:57 PM   #41
Masaga91
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yeah you know, i don't think about crossing water with my xj, i want to imporve the perfomance and power of the car
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Unread 05-18-2011, 10:57 PM   #42
Masaga91
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Originally Posted by robsjeepxj View Post
I did mine strickly for performance purposes and yes it does add power. I love when people theorize about stuff they've never done. And where's the added sharp bend? Stop it please.

Mine goes straight from the throttle body to the cowl and make a slight maybe 10* turn into the filter. The tubing is smoother, no flexy hoses, and the filter flows more are so there's is one way and then there's the fact that your getting colder air, hundreds of degrees colder probably, so that is a big help too.
how you did your cowl intake???
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Unread 05-19-2011, 07:41 PM   #43
donthelegend
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Quote:
Originally Posted by robsjeepxj View Post
I did mine strickly for performance purposes and yes it does add power. I love when people theorize about stuff they've never done. And where's the added sharp bend? Stop it please.

Mine goes straight from the throttle body to the cowl and make a slight maybe 10* turn into the filter. The tubing is smoother, no flexy hoses, and the filter flows more are so there's is one way and then there's the fact that your getting colder air, hundreds of degrees colder probably, so that is a big help too.
First, I need to make clear that I never meant to imply that a cowl intake does not draw in air that is much, much cooler than drawing in air from under the hood. I don't mean to dispute that, it clearly draws in cold outside air. I don't think I phrased my original post very clearly in regards to this.

Second, while I have not yet done this, I am currently gathering parts for it and have read more than a few threads about them, so I'm not completely uninformed on the subject. I went and looked at your write-up, and have to say it is rather different from most cowl intakes I've seen (btw, excellent job with the write-up, I will be utilizing some of it when I do mine).

You are the only person I've seen go through the firewall where you did, which does not introduce an extra bend. Most I've seen are closer to EricsXJ's version, which does have the extra bend I was referring to. You are also one of the few who went to extra trouble to avoid having any corrugated plastic or flex hose to ensure smooth airflow. You are the exception to the rule, and while I commend you for your efforts and I'm sure they work better than what most people do, I believe my original generalization stands:
Quote:
Originally Posted by donthelegend
Very few people who do a cowl intake are doing it for the performance. They are usually doing it to raise the intake for water crossings.
I'm not saying it doesn't help performance or that it can't help performance, or that people don't do it for that reason, just that performance isn't USUALLY the primary motivation. I'm not trying to discount your performance gains, but you are the exception to the rule and went to a lot more trouble than most to get them.


P.S. I really do like your version of the cowl intake much better than EricsXJ, for all the advantages you state. It gets rid of the bends, uses a smooth air tube, and requires fewer things under hood to be moved. I will be modifying my parts list accordingly.
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Unread 05-20-2011, 03:14 PM   #44
Masaga91
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sooo i think i hit a crossroad, don't know if doing the cowl intake or the air intake with the hood vent
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