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Matt's DIY CAI (5.7l HEMI)

33K views 111 replies 21 participants last post by  kennzz05 
#1 ·
Well, here she is. This thing is a freakin' monster, lol. Intake is over 4" inside diameter.

**The goal here was not to go for show, so don't ask why I didn't paint it. I never open my hood to look at my CAI tube. When I open my hood I am changing the pol or performing other maintenance, or the occasional spray down.

I have to thank Matt (mzh29) for a lot of help and pics as he has also done his own intake. His thread can be seen here (link).



Supplies (total cost: $85 shipped)


  • Amsoil EaAU 4060 dry air filter
  • 3"-4" coupler
  • 90 degree 4" PVC
  • 3) 45 degree 4" PVC
  • 180 degree 4" PVC
  • PVC cement
  • 90 degree 1/2 screw type nipple
  • 4" ring/plumbers strap mounting bracket


Construction


  • Went together pretty damn smoothly. Just measured, made my cuts, mocked it up, and then glued it.
  • After cutting, I sanded the piping, cleaned them, then dried them.
  • I used a 1/2" drill bit to make an opening for the IAT sensor (moved down about 6 inches from factory location.
  • I used a 1" drill bit to make an opening for the vacuum hose nipple mounting bracket.
  • I utilized the factory intake mounting bracket/hardware/bushing located near the coolant tank for my plumbers strap mounting bracket.


Not sure if I'm going to do a heat shield yet. A few pictures below you can see where the factory intake routing (behind the grill and through the opening next to the passenger side headlamp) was. I have a feeling there will be a lot of air flow/movement in between the filter and the engine. We'll see though.

I am planning on wrapping the tubing with DEI Cool Tape (link).


Oh, I didn't connect the IAT sensor because I wanted to let the cement cure overnight.



Pics!
































Thanks for looking!



Comments, opinions, criticism, praise is all welcome!!!
 
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#5 ·
We need a video from inside the engine bay with you revving the engine.

DO IT NOW!
haha, I didn't even take it for a test drive, lol. I put 3k HID fogs in too and I still didn't feel like going for a drive. I didn't even rev it. I'll get a dose tomorrow morning. I'm mentally drained today.

And please paint the intake. :D
hahahaha! Fawker! :p
 
#8 ·
Read, my response to Joe, LOLOLOL.

:p

Looks badass! What did you use to seal / attach the IAT and Vac Nipple?

No CEL or anything so far?
Thanks!

For both attachments I used PVC cement. I'm going to monitor the seals and I do plan on dropping a line of silicone around each attachment.

C'mon man!!!


We need to edit the rules saying when a new mod occurs, pics and video is mandatory otherwise you will be banned for a week. :D
:lol::lol::lol::lol::lol::lol:
 
#14 ·
This I sooo simple. The only part I was somewhat nervous about was the integration of the IAT and that was as smooth as eggs. The functionality of the intake is quite simple... air goes through the filter, passes the sensor/hose, goes to the throttle body. Build it so all of these things happen and you're set!
 
#22 ·
Go fawk yourself! LOL

I'll try and get one up tomorrow, I'm going to bed soon. You need t follow suit :p

Imagine how loud this CAI will be on cold start-ups. LOLOL
:D

And I believe the name of this CAI should be "The Hoover CAI". :D
:lol::lol:

Well I guess since on my old mazda it was a first year run so we got the whole intake thing going from AEM and Injen, and the issue was too much air freaked the car out, making it run too lean ( A/F Ratio got screwed) and it would throw check engine lights all the time! I guess this problem doesn't happen with our jeeps!
Hmm, when I moved from the garage to the driveway I didn't get any CEL's. I'll update tomorrow.

Yeah Matt, I would install a Wideband if I were you.
ugh, fawk that. Too much nonsense, lol.

hey matt any reason you went with a dry filter? since it rains a lot are you considering getting a dry cover?
I did some research about filters and, by large, the consensus was dry > oiled. I read that oiled filters can cause problems with the engine - oil going to the engine.

Oiled filters= fawked up IAT sensors.
There you go Irf.
 
#18 ·
Well I guess since on my old mazda it was a first year run so we got the whole intake thing going from AEM and Injen, and the issue was too much air freaked the car out, making it run too lean ( A/F Ratio got screwed) and it would throw check engine lights all the time! I guess this problem doesn't happen with our jeeps!
 
#26 ·
**** I meant to add that our vendor here, Synthetic Lube Store, hooked me up with the Amsoil filter. I saved a little over 10 bucks, I got a free 6-month membership to Amsoil (20-30% discounts), and they got the filter to me in two days!! I highly recommend them.****
 
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