Air Filter
Posting Guru
Joined: Sep 2004
Posts: 1,119
Likes: 0
From: Hamilton, MT
I doubt any intake will increase your gas milage and most of these guys have other mods so they might not beable to tell you if that filter gives you better milage or not.
Edit: I take that back..If you have better luck than me you might get a milage increase but not much more than 1 or 2 mpg.
Edit: I take that back..If you have better luck than me you might get a milage increase but not much more than 1 or 2 mpg.
Last edited by jvoigt; Feb 15, 2007 at 11:33 PM.
Posting Guru
Joined: Sep 2004
Posts: 1,119
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From: Hamilton, MT
I dont know why
..but why do all you guys seem to be checking your intake tubes to make sure there clean? I dont think anyone out there is gonna buy a filter cause it keeps there intake tube clean.
Yeah its a sign of how well the filter is filtering but still you shouldnt have to remove your filter every weekend to look at your intake tube
.
..but why do all you guys seem to be checking your intake tubes to make sure there clean? I dont think anyone out there is gonna buy a filter cause it keeps there intake tube clean. Yeah its a sign of how well the filter is filtering but still you shouldnt have to remove your filter every weekend to look at your intake tube .
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
I only check mine when I swap out the filter for a new one. And yes it's very important to see if dirt is getting into the intake tube. These engine suck in large quantities of air, and it doesn't take long to destroy the turbo or dust the engine because of a faulty filter.
Posting Guru
Joined: Sep 2004
Posts: 1,119
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From: Hamilton, MT
If I still lived in Pheonix AZ I would always check to see if my filter was getting everything but now I am in Montana and Blowing dust and sand are out of the picture. AZ is horrible, I mean the dust storms are terrible. I was at luke AFB and living in the dorms, The day I got my filter/CAI kit I go to install it and it was a pain to install ofcoarse. Needles to say it took way to long to install it, and not to mention once I pulled the factory system off my F150 a dust storm blew in and I had to stuff every damn intake hole with a t-Shirt to keep the dust out. Talk about dust, I had about a handfull of dust I had to clean out of the new intake tube before I could put in in the truck. I dont miss those days, But yeah if you live in a dusty place then its very important to check to make sure your filter is doing its job.
Junior User
Joined: Oct 2006
Posts: 98
Likes: 0
From: Anderson SC
With the 6627 mod you are going to hear things that you might have never heard before. You can hear the turbo spool up and you will hear as PSSSS sound when you let up on her or sometimes when it changes gears. i was assured by other members that this is perfectly normal. It is air being expelled back out of the turbo inlet that is not needed.
Posting Guru
Joined: Sep 2004
Posts: 1,119
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From: Hamilton, MT
Originally Posted by orthogod1
With the 6627 mod you are going to hear things that you might have never heard before. You can hear the turbo spool up and you will hear as PSSSS sound when you let up on her or sometimes when it changes gears. i was assured by other members that this is perfectly normal. It is air being expelled back out of the turbo inlet that is not needed.
Posting Guru
Joined: Dec 2006
Posts: 2,498
Likes: 3
From: Windsor, Colorado
I just install the 6637 tonight and was amazed that the intake tube was dirty. I mean it terrible considering I have 145000 miles on my pickup, but I dont think it should have been clean! I can see how in heavy dust enviroment these things get dusted.
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Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
One of the things you can do to extend the life on the 6637 is to install what some folks call the "pop" cover, which is a prefilter "sack" that keeps out large stuff. I made my own version of it with a customized graphic just because I could nad it was fun. Looks pretty good to. My finished product is below, and my own steps of doing the entire mod is in my gallery.
Posting Guru
Joined: Dec 2006
Posts: 2,498
Likes: 3
From: Windsor, Colorado
That cover looks great! I looked at your install pics. I am concerned about the filter coming off like yours did. How is your 4" pipe attached to the filter?
Last edited by mudmaker; Feb 17, 2007 at 12:57 AM. Reason: typo
Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
Thanks!
The pipe going into the filter opening is simply a "shove tight" fit. I filed the edges of the exhaust pipe with a minimal taper to keep burrs from making it difficult. The fit is so snug that I know for a fact taht it can't come out. The geometry under teh hood just doesn't allow for any movement at all. On the end that goes into the OEM flex tube, I had to trim a small piece of extruding rubber ridge that fits through a slot in the OEM band clamp, and then tightened the clamp down on the exhaust pipe transition. I've checked since then... NO movement at all!!
I want to replace the flex tube with a piece of 4" exhaust that has a 45° bend with silicone boots so I can get a smoother airflow into the turbo, but haven't put the pieces together yet for the install. You can buy a kit to do the whole job with, but I think it's more fun to make it yourself.
The pipe going into the filter opening is simply a "shove tight" fit. I filed the edges of the exhaust pipe with a minimal taper to keep burrs from making it difficult. The fit is so snug that I know for a fact taht it can't come out. The geometry under teh hood just doesn't allow for any movement at all. On the end that goes into the OEM flex tube, I had to trim a small piece of extruding rubber ridge that fits through a slot in the OEM band clamp, and then tightened the clamp down on the exhaust pipe transition. I've checked since then... NO movement at all!!
I want to replace the flex tube with a piece of 4" exhaust that has a 45° bend with silicone boots so I can get a smoother airflow into the turbo, but haven't put the pieces together yet for the install. You can buy a kit to do the whole job with, but I think it's more fun to make it yourself.
Posting Guru
Joined: Dec 2006
Posts: 2,498
Likes: 3
From: Windsor, Colorado
Thanks for the info. I'll grab a piece of pipe tomorrow and add it to the filter. I was already nervous about the filter coming off. seeing your pics confirmed my concerns.
As far as the tube to the turbo, maybe a truck shop could help. basically a guy just need to find someone with a 4" tubing bender from what I can tell. Is it a straight shot or does it need to be bent both directions? I havent really looked at it hard yet, but now you got me thinking about it.
As far as the tube to the turbo, maybe a truck shop could help. basically a guy just need to find someone with a 4" tubing bender from what I can tell. Is it a straight shot or does it need to be bent both directions? I havent really looked at it hard yet, but now you got me thinking about it.
Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
The configuration may be a little different on the different engine models. I'm told that for my '02, I only need it bent in one direction. In fact, that's pretty much what I've seen pictured in the kits you can buy. I've already found a BIG truck shop )International dealer) her ein Birmingham, so I know I can ge the pipe and boots, just haven't had the time to do it lately. I'm targeting within a month for install, but I'm also wanting to go ahead and do the Hutch and Harpoon mods, too, which will probably end up taking a higher priority.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
That's interesting. You are the only person I have heard of that the intake hose came off the filter. I have run the setup without an additional piece of pipe for over a year. I will be checking often as I just put a new one on yesterday. Any ideas as to why yours came loose? Did you leave the bottom part of you factory filter box?