Do It Yourself Intake Modification for 2004-2008
#16
#17
If you want to get this done a littler quicker I'd suggest using 3" PVC sewer pipe. It's thin wall requires no grinding and slips easily into the fender hole!!!
http://images.lowes.com/product/721957/721957105135.jpg
http://images.lowes.com/product/721957/721957105135.jpg
#18
#19
If you want to get this done a littler quicker I'd suggest using 3" PVC sewer pipe. It's thin wall requires no grinding and slips easily into the fender hole!!!
http://images.lowes.com/product/721957/721957105135.jpg
http://images.lowes.com/product/721957/721957105135.jpg
#20
I did this variation so I did not have to shape the tube. Works great.
https://www.f150online.com/forums/ar...4l-engine.html
https://www.f150online.com/forums/ar...4l-engine.html
__________________
Jim
Jim
#21
#22
Thanks, I finally went out and bought the materials....
JackandJanet,
Thanks, I went out today after work and picked up all the materials at my local Home Depot. Totaled just over $12.00 (spray paint, strap, and pipe)
I will take some pictures of the install and let ya know how it runs tonight when I run back into town.
Thank you for this article
Thanks, I went out today after work and picked up all the materials at my local Home Depot. Totaled just over $12.00 (spray paint, strap, and pipe)
I will take some pictures of the install and let ya know how it runs tonight when I run back into town.
Thank you for this article
#25
Might wanna re-think that...
I did this variation so I did not have to shape the tube. Works great.
https://www.f150online.com/forums/ar...4l-engine.html
https://www.f150online.com/forums/ar...4l-engine.html
From the very same thread you posted: DWV Intake Mod for 2004-2008 F150 with 5.4L Engine Post #53
"Just an FYI to all those who have done this mod...check your downspout rubber adapter.
On a recent trip doing a lot of mountain towing, I did a routine engine check during a gas stop. I noticed the plastic air intake tube going to the fender was loose. Low and behold the downspout rubber end that goes in to the fender hole had sucked itself backwards in to the tube. It didn't come off the tube or anything but there was definitely both a restriction and engine compartment air getting sucked in to the engine."
There's either another thread here or over on the PHP forums showing the 3" section of the adapted sucked into itself.
It was a good idea, but that rubber was way too flimsy considering the volume of air going across it. The airflow would be constantly trying to collapse it due to the change in direction of airflow.
#27
You would have to use a piece of pipe & clamp inside the bellows and then tape the dryer hose/tubing to it, unless you're referring to rigid duct work. That would probably work, but still heat soak more easily than PVC/ABS and likely transfer some of that heat to your intake charge.
#28
I was a bit worried about the "softness" of the downspout adapter when I saw that approach. Looks like it could be a serious problem. ABS or PVC will not have this issue and either should work well.
I suspect, actually, that the aluminum flex tube mentioned would also work, if the outside diameter fits flush with the fender opening. It's really a pretty short piece, and there's very little stress on it (other than a bit of "suction effect" at the intake. Because it's so short, heat soaking should not be much of a problem.
Nice job, 07hamline150
- Jack
I suspect, actually, that the aluminum flex tube mentioned would also work, if the outside diameter fits flush with the fender opening. It's really a pretty short piece, and there's very little stress on it (other than a bit of "suction effect" at the intake. Because it's so short, heat soaking should not be much of a problem.
Nice job, 07hamline150
- Jack
Last edited by JackandJanet; 05-15-2009 at 11:37 PM. Reason: Added clarification about aluminum flex tubing
#29
Well, I tried the dryer hose....and, it fits perfectly, both in the fender and directly in the plastic portion of the intake tube. I cut the tubing so that it fit tightly between the intake and the fender. The tubing has enough "give" to it so that it won't crush nor will it pull out of the fender. The tubing I'm using is not the mylar covered spring hose, but the aluminum "armadillo" looking hose (for lack of a better description).
Yeah, I'm concerned about heat-soak, but it's a super-cheap mod that's easily reversible. I can't say I noticed any difference after driving around though.....I took a few on-ramps at full-throttle, no difference to me.
Yeah, I'm concerned about heat-soak, but it's a super-cheap mod that's easily reversible. I can't say I noticed any difference after driving around though.....I took a few on-ramps at full-throttle, no difference to me.
#30
hay why not pick up some 10mill tape and coat the tube this will get rid of any heat soak in that short of a piece and was looking at that my self why not take the tube right out the front for true ram air? any one with thoughts on this let me know and ill give it a try post my findings latter!