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Unread 01-29-2014, 11:36 PM   #196
bbradUSMC
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Quote:
Originally Posted by jjvw View Post
The drain hole on the back of the canister? Mine is still open for drainage. I am inclined to blame the F150 cone. Very odd.
Did it without the cone as well.

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Unread 03-21-2014, 08:50 AM   #197
LowBudget
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Just wanted to thank everyone who contributed to this thread. Because of all of you I was able to complete this mod for $40 and about an hour of time. Came out great! I went with a 3" hole in the cowl. The cone fit snug and won't be moving anytime soon. Biggest PITA was getting the cowl cover back on. Had to pull the weather stripping on the hood side off to get it to sit back in its mounting place. I have not noticed any change in the sound in the cab. Thanks a ton!

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Unread 05-11-2014, 04:02 PM   #198
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After doing this on my sons 99 TJ, I decided to dump my ARB snorkel on my 94 YJ and do this as well. However I found a few things different that I had to trouble shoot.

First is, there is a difference as to where the oil vent tube is on the YJ. It sits back further and is almost under the TJ Air intake tube. It was difficult to find a hose that would fit without kinking, but I found a short elbow tube at the auto parts store.

Then there is the vacuum line from the charcoal canister. There isn't any place to connect it on the TJ Air tube. I think it's connected into the side of the TJ intake manifold, but my YJ manifold doesn't have a spot for it. So I found some Adaptor plugs at the auto parts store. Just had to drill a hole into the TJ intake air tube and press it in. Then run a hose to the charcoal canister.

There is also a length difference to the firewall. I made mine based on the same length as the TJ and my setup sits at an angle. I was going to get another wind star box and cut one longer, but decided not too as that would put the TJ air intake tube right on top of the valve cover PVC tube and I would be back to square 1.

Also the rubber boot that goes into the cowl wall sits up at a semi steep angle. I was worried about water getting dumped into it when getting washed or a Florida down pour. So I cut a peace of tin and riveted it over the top to prevent a direct hit from water. I had to trim the cowl grill so it would sit flush over the tin as there is a lip on the inside. All in all it worked out. But it is louder than the TJ. It sounds like a vacuum cleaner at 2000 RPMs. Going to take some getting used too.

Hope you can make sense of the photos.

TJ


image-2562603848.jpg

YJ


image-828397273.jpg



image-2558814850.jpg



image-2653815047.jpg
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Unread 05-11-2014, 04:05 PM   #199
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Here is the cowl vent shield. It seems much more quiet with the rain shield.image-2616452966.jpg image-3404549679.jpg image-1224008285.jpg image-1909618061.jpg image-1565709094.jpg image-339869457.jpg image-133926903.jpg
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Unread 05-11-2014, 06:40 PM   #200
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I'm still scratching my head over this stuff. If this is so great, I always go back and wonder...... why didn't they do this from the factory. It just seems like a solution in search of a problem. Much like the goofy snorkels folks who never see more than 2" of water put on their jeeps, in an apparent attempt to.... I don't know, attract a mate, like a peacock?
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Unread 05-11-2014, 07:34 PM   #201
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Quote:
Originally Posted by JeffBowser View Post
It just seems like a solution in search of a problem.
So drawing outside air at the base of the windshield is the same as pulling air under the hood from behind the headlight? I can think of a couple easy differences and after running this for three years plus I believe they are differences that make a difference.
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Unread 05-11-2014, 08:06 PM   #202
jeepwrangler97
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Quote:
Originally Posted by JeffBowser View Post
I'm still scratching my head over this stuff. If this is so great, I always go back and wonder...... why didn't they do this from the factory. It just seems like a solution in search of a problem. Much like the goofy snorkels folks who never see more than 2" of water put on their jeeps, in an apparent attempt to.... I don't know, attract a mate, like a peacock?
For me...with all the water here in FL, I found this setup to be great.

With the an aftermarket "cai" I obviously got water in my engine; more than once too....but even with the oem.intake & even on road I got water in...not much but still some, not even splashing through stuff, either.

So far, my cowl intake with a shield & cowl scoop seems to be the best setup I've had.

Another thing is I like that's it's now pulling air from outside & not hot air in the engine bay.

& the mpg is probably negligible...but the best mpg my jeep has gotten was on a trip, right after the cowl intake.

3rd reason; the induction sound of my 4.6L combined with my exhaust when I give it the beans makes me so happy...it's one of my favorite sounds.

Mine is a filter though...not a box/filter

I went through a tunnel in Mobile a little while back....& well the sound of the intake+exhaust+tunnel was like angels singing...

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Unread 05-11-2014, 09:32 PM   #203
GunHo198
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I don't know why Jeep didn't do it on the newer models, but Ford has been doing it on many of there cars for awhile. I've seen these intakes on the excursion, the escorts and many of there van lines. Just through the fender but not the cowl. I've ran a snorkel for the past 18 years. While it worked fine, the questions I got from random strangers at red lights was getting old and driving me nuts. This setup gives me a lot of free space in my engine compartment. And I'm moving on to flat fendering my Jeep next week and dumping my body lift. It was time to move into a new chapter with my Jeep as it's been much the same for so long. If I was going to ever sell it, I would leave it alone. But after 20 years she's a keeper and it's time to move her forward.

Why doesn't Jeep do it from the factory? Don't know. Why don't they make them with more lift and bigger tires? Why don't they go back to the flatfenders? Why did they make a new SUV that looks more like a Nissan???
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Unread 06-18-2014, 09:12 AM   #204
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Here are two questions for everyone.

Has anyone reset their computer to the factory defaults after adding the Windstar?

Has anyone else with cowl induction switched to 4 port injectors? Might there be any benefit to the cold air in conjunction with a better fuel spray?

I have done both of the above, and I am wondering if anyone else thinks there might be noticeable differences.

My completely non-scientific report is that after bumping up to 33's, I experienced the typical decrease in power and mileage. After several weeks, I switched to 4 port injectors, and the Jeep suddenly drove nearly as well as it did with 31's.

Am I imagining things again?

In fairness, I should add that the Jeep has about 75k miles, the "new" injectors were cleaned, and both the throttle body and IAT sensor (while not very dirty) were cleaned at the same time. Therefore the data is pretty muddy.

If at all possible, I would like to avoid the typical knee jerk responses regarding bolt-on modifications to the 4.0. I know already. Which is why I am suspicious of myself.
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Unread 06-18-2014, 09:19 AM   #205
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You stumbled upon the biggest sales factor for cai, tb spacers, etc etc. If you do notice a significant increase, it's either mental or the replaced parts were not functioning as good as they should have due to condition
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Unread 06-18-2014, 09:22 AM   #206
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You stumbled upon the biggest sales factor for cai, tb spacers, etc etc. If you do notice a significant increase, it's either mental or the replaced parts were not functioning as good as they should have due to condition
Perhaps. That is why I listed the known variables in order to introduce the doubt myself. Those who have added the 4 port injectors have reported a smoother idle and the Cherokee crowd has allegedly had good luck with these injectors, so something is going on here.

The reason I even risk asking the question is because I have not seen this particular combination discussed. The crux of the question is about stacking these two specific mods on top of each other, both of which individually likely provide a small improvement, so they can possibly work together. All of it centers around the fuel/air mix with real cold air and arguably better injection. The usual snake oil/sales pitches don't provide either of these. That is why I am curious.
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Unread 06-19-2014, 09:45 AM   #207
LowBudget
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Quote:
Originally Posted by JeffBowser View Post
I'm still scratching my head over this stuff. If this is so great, I always go back and wonder...... why didn't they do this from the factory. It just seems like a solution in search of a problem. Much like the goofy snorkels folks who never see more than 2" of water put on their jeeps, in an apparent attempt to.... I don't know, attract a mate, like a peacock?

After doing this I recommend it to everyone that owns a TJ. For $40 it's really a no brainer. I wasn't expecting any power gains over stock but what I did gain was no power loss once the engine is hot. There are several hills where I wheel that are very sandy and steep. Right off the trailer and up to operating temp Jeep goes up no problem. As the day progresses it gets more and more difficult for the Jeep to power through. since the intake. It has power all day no matter what I was doing previously. I was really thinking I was going to be doing a stroker or Hemi conversion sometime in the near future due to the lack of power. Now it runs great and that has been put on the back burner.
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Unread 06-19-2014, 10:52 AM   #208
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... but what I did gain was no power loss once the engine is hot. There are several hills where I wheel that are very sandy and steep. Right off the trailer and up to operating temp Jeep goes up no problem. As the day progresses it gets more and more difficult for the Jeep to power through. since the intake. It has power all day no matter what I was doing previously...
The power loss you are describing sounds weird. I think you might have other problems with your Jeep.
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Unread 06-19-2014, 07:55 PM   #209
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Quote:
Originally Posted by JeffBowser View Post
I'm still scratching my head over this stuff. If this is so great, I always go back and wonder...... why didn't they do this from the factory. It just seems like a solution in search of a problem. Much like the goofy snorkels folks who never see more than 2" of water put on their jeeps, in an apparent attempt to.... I don't know, attract a mate, like a peacock?
I think they don't do it at the factory because of the possibility of the cowl getting plugged up and filling with water. Sure you and I and the people on this forum are going to check their cowl and make sure the drain hole is clear of crud, but Jeep isn't just selling to us. They have to pander to "Mom taking the kids to the mall" and "Mr. I still have to go to work in the snow and can't figure out how to do it in a front wheel drive car". Those guys won't check their cowl and probably wouldn't understand why you would need to if Jeep had done this from the factory.
To sum it up, Jeep didn't do it because it's less risky to put it under the hood.
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Unread 06-19-2014, 08:09 PM   #210
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It is also slightly louder and cuts a hole in a wall that is mandated to save you from fire, not that I think it poses any risk
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