Stock Air box thingy removed! Ghetto style w/ pics

[NHWK05]

Well after getting my AFE intake and i was disapointed to see that it did not remove the stock air box thingy (what ever its called) I also did not really notice that much of a difference in the throttle response at all. So i pondered and pondered. I decided i would make my own plenum tube to connect the throttle body to the AFE intkae plenum.

Well to my dispair i have no money right now as i have no work.

Long story short, i was bored and about 45 mins ago i went out to the jeep and played with some stuff.

Using the stock ribbed plenum, i was able to connect that from the throttle body to the AFE plenum. Then i drilled a hole and put the air sensor back in.

Now there is HUGE difference in throttle response and it idles better. Once i get some cash i will re do this with some nice silicone tube and couplers but for now this works prefect. The AFE Dry S Filter actually sounds like its working now and it feels peppier.

EDIT: YES i know the engine is dirty and a disgrace but i have not had any decent weather or chemicals to try and get it as shiny as Joe's engine bay.
http://img.photobucket.com/albums/v293/xtremejeeper/mods/Intake3.jpg
http://img.photobucket.com/albums/v293/xtremejeeper/mods/Intake2.jpg
http://img.photobucket.com/albums/v293/xtremejeeper/mods/Intake1.jpg

[Robert Palmer]

Looks good to me!

[NHWK05]

Lol thanks Joe.


Wanna drive up here and detail my engine for me? LOL

[Robert Palmer]

Hahahaha.....no. :D


But you are welcomed to drive down here!!!

[mjl2610]

Wow kyle!!! I was thinking about selling my AFE to get a k/n system just for kicks and try to see what the deal was without the plenum resonator on there. Very clever and innovative. I might actually do something like this very shortly cause i also wanted to kill that resonator. Stay tuned. :D

I still have the original setup of course

http://farm4.static.flickr.com/3341/3412189962_9e3850bb2e_b.jpg

[NHWK05]

The only thing you have to do is make a spacer for the TB. The Throttle body is 3.25 not 3.5. BUT the stock box has a spacer on it where it mounts to the TB. If you take that spacer off, remove the band clamp, then cut out the inside ring it will fit right on to the TB. Then you slide on the old plenum, drill the 1/2 hole in the plenum (see my pic) for the air sensor and your done. Too all of 45 mins to do and that was creating it, prolly can be done in 20mins.

If you need more specific help doing it om me. Seriously it should not even take you 30 mins to do it. So worth it.

[DirtyBlackJeepSRT]

Dirrrrrrty! :D

[Scottina06]

good mod Kyle! +rep

[NHWK05]

Thanks

[NHWK05]

LOL, I just noticed that you can finally tell that i painted the strut bar Dark khaki. Now i need to sand it down some and re paint it and not rush it so i dont have those marks on the top from the hood insulation.

[mzh29]

What's involved in taking off the 4.7 cover? Just a couple screws? I assume that is the "resonator"? I wonder if the stock flex tubing would reach by itself.

[NHWK05]

No the stock tubing will not fit. from the TB to the stock air box.

All thats involved in removing it. (maybe i will do a write up with full pics tomorrow. )

With AFE or similar CAI,

Remove the plenum band clamp from the plenum where it attached to the air intake resonator.

Using a 10mm socket remove the 2 bolts that hold the resonator to the intake manifold. One on each side.

Then loosen the Band clamp on the TB can unplug the air sensor.

Remove the resonator and set aside.

Next take the stock plenum with the ribs and with the narrow ribbed end in your left hand make sure that the bend of the plenum is going to match the bend from the intake to the TB.

Now take the stock resonator, where it attached to the TB there is a rubber reducer ring. Take it off the resonator and look at it. It has 2 layers. Carefully take a razor knife and cut the out side layer off the smaller inside layer. Clean up the edged and place this small ring on the TB. Now the Stock ribbed plenum tube will fit the TB like it should.

Take the ribbed plenum and where the narrower ribed end is locate the thicker portion of it near the band clamp. on the side of the thicker portion, CAREFULLY drill a 1/2" hole. The hole will not come out perfect, so the sharper the better.

Take a knife or razor blade and clean up the hole and shake out all shavings.

Now take the ribbed plenum and attach the opposite end you drilled to the TB.

Next take the remaining end and attach it to the Air intake's Plenum.

Once both band clamps are tight CAREFULLY insert the air sensor from the old resonator in to the 1/2 hole you drilled. (it should be a tight fit)

NOTE: make sure when installing the air sensor that the sensor's flat side is perpendicular to the ground. So when air flows over it if flows through the wires and not over it (up and down not flat) plug in sensor.

Go drive you jeep.

I will take pics tomorrow between rain drops and maybe this can be stickied under the performance mods section.

[Frankie]

Very nice man!!! Way to think outside the box...PUN! HAHA!

[NHWK05]

Ha ha ha. LOL thanks.

I just added a step or two to my instructions too.

[Frankie]

Dont be ashamed of the dirt...Look at mine! LOL

[NHWK05]

LOL, if i could just get mother nature to cooperate, i could finally fully detail my jeep. Ive had it for 3 months and i have only waxed it 4 times. Geese. (i wish i could buff, gotta learn how).

I really want to paint the air intake manifold now. maybe i can get a used one cheap and have Daniel paint it dark khaki for me.

[mzh29]

How does it sound without the resonator?

[Dylans3960ccs]

Wow kyle!!! I was thinking about selling my AFE to get a k/n system just for kicks and try to see what the deal was without the plenum resonator on there. Very clever and innovative. I might actually do something like this very shortly cause i also wanted to kill that resonator. Stay tuned. :D

I still have the original setup of course

http://farm4.static.flickr.com/3341/3412189962_9e3850bb2e_b.jpg

Yeah my 4 liter has one of those thingys too, but I think a K&N gets rid of it. I like how you painted the lettering stuff. :)

[NHWK05]

How does it sound without the resonator?

The only noise you hear, Right at startup you can hear the CAI air filter sucking in alot of air (it revs higher at a cold start for less then a minute) then its silent. If you rev it up you can hear the intake "take a gulp" of air but other then that its fine. maybe a slight whistle at highway or high speed RPMs but that comes with any CAI, even teh stock K&N replacement gives a bit of a whistle.

[mjl2610]

The only noise you hear, Right at startup you can hear the CAI air filter sucking in alot of air (it revs higher at a cold start for less then a minute) then its silent. If you rev it up you can hear the intake "take a gulp" of air but other then that its fine. maybe a slight whistle at highway or high speed RPMs but that comes with any CAI, even teh stock K&N replacement gives a bit of a whistle.

exactly

[dreamer1213]

Very creative Kyle!! Good on ya for using that noggin....lol!!! :D

[NHWK05]

Thanks Hannes.:D

[B.P.O.D]

looks good bro!!!

[TimmyB]

Odd, I still have the box with my K&N 63 CAI. Did you disconnect the battery while doing the install? The exhaust shop did it when doing my exhaust, said it resests the computer.

[Scottina06]

yuo K&N 63 is for the 3.7(some odd reason they didnt lose the box on the 3.7.....he has the 4.7.

That box is called the intake resonator/muffler

[Marlon_JB2]

I've thought about keeping the stock airbox and doing something kinda similar on my 3.7L... by using the tube from a 3.7L Liberty. But I haven't figured out if the throttle bodies are the same size. I could always just swap them from my sister's Liberty *but* she will have a heart attack if I start disassembling her Jeep. :p Resonators are evil.

[NHWK05]

Ok Todays driving update. I drove my jeep for about 3 hours today, Hwy at 75mpg and in city/stop and go as well as back road and passing.

Left home, drove to highway and on the on ramp i noticed ( i am the type that merges at hwy speed not 40 mph) that the throttle is much nicer and more responsive.

The exhaust is much nicer sounding and a bit louder, and deeper.

The city driving was nice and its deff got a great rumble now and i thought it was good before.

Finally i was on a back road thats a 40mph and got stuck behind a volvo doing 30. They finally pulled over and let me pass, and i kinda rhomped on it as i passed them an OMFG it sounds so good now!!!

So far so good, great free mod. All i need to do now is get a piece of silicone tube or aluminum tube thats 3.5" OD, with a 90* bend and thats 9" long from the center of the opening after teh 90* bend, paint and install and it will look SEXY!!!!

[mzh29]

Ok Todays driving update. I drove my jeep for about 3 hours today, Hwy at 75mpg and in city/stop and go as well as back road and passing.

Left home, drove to highway and on the on ramp i noticed ( i am the type that merges at hwy speed not 40 mph) that the throttle is much nicer and more responsive.

The exhaust is much nicer sounding and a bit louder, and deeper.

The city driving was nice and its deff got a great rumble now and i thought it was good before.

Finally i was on a back road thats a 40mph and got stuck behind a volvo doing 30. They finally pulled over and let me pass, and i kinda rhomped on it as i passed them an OMFG it sounds so good now!!!

So far so good, great free mod. All i need to do now is get a piece of silicone tube or aluminum tube thats 3.5" OD, with a 90* bend and thats 9" long from the center of the opening after teh 90* bend, paint and install and it will look SEXY!!!!

Nice work, I'm sure the home depot would have what your looking for. I've seen it cai's made out of 3"pvc pipe. They make TONS of fittings and adapters for pvc. And I think you meant to type 75MPH, not MPG. Otherwise you have have just become a billionaire with your invention.

[NHWK05]

Yes i meant to say MPH. LOL

At this point i am not going to change it any more. If this Bwoody intake for the 4.7 works out i am going to sell my AFE (its alreadya for sale on JU and JF, I will post it here as well) and just get the Bwoody intake, what i always wanted any way.

[AcidCold]

You want to talk about ghetto!? LOL i used a clear smooth tape to cover the inside of the resonator and it took care of the problem! now there is my meaning of ghetto! haha

[NHWK05]

Wow, that is pretty ghetto, but it works right? For some reason removing that intake muffler thingy really made a huge difference in performance, looks and exhaust tone/sound.

[mjl2610]

Here is what the inside looks like. You can see where the holes are in the resonator.

http://farm4.static.flickr.com/3362/3660803213_f99a8728fb_b.jpg

http://farm3.static.flickr.com/2448/3660805109_2a7b11d1bf_b.jpg

http://farm4.static.flickr.com/3305/3661606492_97c46ec0f5_b.jpg

[NHWK05]

Yea, i took a look at mine when i took it out. I just dont get why its needed at all. The Xj never had one on the 4.0 but i guess they added one on the wjs with the 4.0, but the tj never got one on the 4.0 and that went till 06.

Just like back in the day of the Xj, where the stock plenum meets the stock air box, there is a cone there that decreases the diameter of the air tube before the plenum. apparently it was there to reduce flow and Hp, That is the first mod that any new xj owner removed, it took 1 min and a flat screw driver to pull it out and throw it in the trash.

Manufactureers do all kinds of stuff to reduce HP for some odd reason. LIke the 4.0, 190 hp, wtf. that engine is tuned just slightly different from the factory could easily put out 230 hp and still have more torque then any other 6 cyl like it does now.

makes me wonder what else they did to the 4.7 to reduce its Hp.

What did they do different when they "new' 4.7 came out in 08 with more Hp?

[mjl2610]

Yeah i don't get it. I had a 98 Oldsmobile Intrigue and that whole intake system was convoluted and just overall awful. Motor probably gasped for air under normal situations let alone if you had a dirty filter. After removing it and putting in a straight SLP intake, I could not only burn rubber all day but the engine roared like a beast and actually sounded awesome. GM probably did what they did to keep it nice and quiet with a smooth acceleration, which of course how it was. :confused::confused::confused::confused:

[Scottina06]

yeah most buyers of a premium SUv or sedan dont want a loud ass engine...

[Dylans3960ccs]

I think that they should reserve that for minivan buyers. hehe

[Marlon_JB2]

Liberty intake = Success!!!!!!

Works fine. The throttle body seems to be smaller on the WK though as I had to use a different, smaller hose clamp (which came from the WK's resonator box).

The results? Now that the resonator is gone, I've noticed a very nice increase in throttle response, and it doesn't seem to NEED to downshift as much as before. If I want a lil bit more speed, I can just push the gas down, and it actually *goes* instead of lugs around!

I'm extremely happy HOWEVER I still need to take care of the hosing issue I ran into (I may need to slice the Liberty intake a little bit and take care of the Check Engine Light (Intake Air Temp Sensor not plugged in right now, it's in a different location)

I haven't noticed an increase in intake noise, but I do attribute the better "performance" to the fact that I have opened up the intake AND exhaust. I'm very happy.

[NHWK05]

Pics please.

I will have my final product all set tomorrow, i bought a 3.5" tube with a 90 to replace the ribbed plenum. I just painted it and made the IAT hole and grommet. I will install it tomorrow when its dry and post up pics.

[Marlon_JB2]

ooh no. No pics until I get to a final product. :)

[mzh29]

Pics please.

I will have my final product all set tomorrow, i bought a 3.5" tube with a 90 to replace the ribbed plenum. I just painted it and made the IAT hole and grommet. I will install it tomorrow when its dry and post up pics.

Can't wait to see the results!!!

[NHWK05]

Can't wait to see the results!!!


I went to install it today and realized i need to trim it a bit shorter. I go to do that and the sky started to fall again like its been doing for weeks. WTF. it will wait till another day.

[mzh29]

That sucks man, I know how much it blows to start a project and have to stop. It seems like i always start doing stuff to my truck about 30 minutes before it gets dark, or rains.

[mjl2610]

Hows the finished product coming along kyle?

[NHWK05]

Its painted and waiting the rain to stop so i can install it. Just need 30 mins of weather to be nice to get a final fitment and make sure its all snug and take some pics.

[mjl2610]

Nice, looking forward to it.

[NHWK05]

OK, i gave up. The pipe i bought did not have a sharp enough 90* angle to it so the silicone coupler would not stay on. So $30 wasted later, i give up and i will leave it the way it is until the Bwoody Intake is manufactured and purchased.

Sorry, Just dont want to waste any more money on sumtin i plan to change any way.

[mjl2610]

Gotchya, well it was a good try i suppose :thumbsup:

[B.P.O.D]

hey kyle do you still have these pics?

[jeepnjeep]

Pics in the OP don't work any more?

[DJ BoNiOmArIo]

wat happened to the pix of the mod? lol

but it sounds like a sick mod ... did you notice difference in throttle response ?

I can already here it "u pic whore!" lol just wondering how the setup looks?

[NHWK05]

Sorry dudes, i deleted them. I cant find them on my puter either.

[B.P.O.D]

roughage!!!! NEW PICS!!!!!!

[NHWK05]

i dont have that intake setup any more and i am so sick of waiting for Bwoody that i am going to work on my own setup.

My plans, But the K&N Plenum/Air tube from the full kit for the 4.7 that goes from the TB to the filter. (the one that Rob has the 2 piece plastic part)

I will modify that tube as needed and attach the tube to the WK stock Ait box cover, and for the moment use my stock WK K&N panel filter. Then, my next plan is to buy the AirAId CAI that clamps to the bottom section of the stock WK air box and hook the K&N tube to that.

[B.P.O.D]

ahhhhhhh ok i see!!! i ran into one small issue doing my intake yest... uploading pics now

[NHWK05]

My biggest concern is i dont want any turbulence in the air, so it will be free flowing. Even with my old setup there was alot of restriction because of the accordion part of the intake and lots of turns and such. If i go the way id like wit it it should be pretty free flowing.

[B.P.O.D]

so do you think i should use the accordion style piping at all? it would be about 6-8 inches long

[NHWK05]

Honestly, its a quick fix but its still going to restrict. So no i would not use it.


Acid cold has my old AFE intake, Look up his thread. he used a 4.7 Dakota Air tube, cut down to make the TB to intake connection. I think thats the easiest way to connect to an intake like yours or the AFE.

[B.P.O.D]

yeah i got the tube from an 09 liberty... but its just short of hte k+n tube so i wanted to use the accordian in that short section... maybe ill get something from pepboys instead to fill in that 6-8 inches

[NHWK05]

You just need to remember that you want to smoothest flow possible, anything with a rib or texture to the inside will cause air resistance.

[B.P.O.D]

gotcha! i was at pepboys at lunch and saw something that will work:)

[TimmyB]

Homedepot sells PVC tubes and rubber couplers. Doing a home made intake is what i should of done from the beginning out of PVC. Glue all the elbows and pipes together then just go buy the insulator sleeve they sell for intakes/turbos and wrap it around the pipes so they are not visible. I think K&N is a rip off for what they actually sell, which is just a plastic dam tube that cost $5 to make.

[B.P.O.D]

yeah i paid 180 for mine, but at least i know i can't F it up:)