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-   Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 (http://www.ramforumz.com/forumdisplay.php?f=83)
-   -   Airbox Intake Tube Mod (http://www.ramforumz.com/showthread.php?t=63174)

jmr 10-07-2010 07:17 PM

Airbox Intake Tube Mod
 
I took out the airbox to see how the intake tube fits at the fender and noticed that it's a really cramped area. So I decided to add another inlet tube to the bottom of the airbox by attaching 3" aluminum flex pipe using a modified 3" PVC drain grate (cut out the grate). I drilled a 3" hole in the front bottom corner of the airbox then put in the modified drain and slid on the 3" flex tube using a 3" hose clamp to secure it. Next the tubing is routed between the frame and the inner fender liner down to opening that allows
it to be positioned behind the bumper.

The original inlet tube inside diameter is 3.5"x4" or 14 sq inches, the new inlet inside diameter is 2.75" so that's a gain of 5.9 sq. inches. The more air you can feed the engine the better. I bought the materials at Lowes if anyone is interested.

http://webpages.charter.net/jrhoades72/images/Mod-0.jpg
http://webpages.charter.net/jrhoades72/images/Mod-1.jpg
http://webpages.charter.net/jrhoades72/images/Mod-2.jpg
http://webpages.charter.net/jrhoades72/images/Mod-3.jpg
http://webpages.charter.net/jrhoades72/images/Mod-4.jpg

RootBeer 10-07-2010 07:23 PM

Nice job. Great report on DIY CAI tube. :rep:

autobred 10-07-2010 07:28 PM

nice work JMR :smiley_thumbs_up:

ScatPak07 10-07-2010 07:39 PM

Thats a cool DIY! Thanks for sharing that with everyone and giving a great idea!

jmr 10-07-2010 10:30 PM

Thanks. I did the same thing to my Avenger R/T only the hose is routed to pick up ram-air by the fog light.

HoustonHemi 10-15-2010 11:04 PM

I like it!

Any sealant/fasteners between the fitting and the air box? (Not a dirt issue, just wondering how 'secure' the fit is.)

The 'vent' tube would also work on the 4th Gen Volant CAI.

YEP :smileup: for REP!

CHVYKLR 10-16-2010 09:14 AM

I'll believe it if there are pics? lol

CajunDodge 10-16-2010 09:17 AM

That's pretty cool, nice job on that! :smileup:

- Cajun

916Timmy 10-26-2010 06:55 PM

Any hp pickup or MPG increase??? I thought about putting something like this on mine, also replacing the flex tube from the TB to the airbox!

RansRAM 11-09-2010 06:05 PM

Great idea and writeup, reps for ya.


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