Looking into a CAI/Hummer Intake - JeepForum.com
 
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post #1 of 7 Old 11-24-2009, 01:09 PM Thread Starter
KevinR
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Looking into a CAI/Hummer Intake

Hey guys,

I'm looking into doing a cowl CAI or maybe a Hummer snorkel for my jeep. My question is- what diameter PVC should I use? Is 2 in big enough, that looks to be about the size of the tube coming out of the stock filter box (which I'm going to try to retain.) Also, have any of you guys with a hummer snorkel had issues with water washing over the hood (ie hitting a puddle) and hydrolocking the engine? Thanks guys!

Kevin

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post #2 of 7 Old 11-24-2009, 01:11 PM
Unlimited04
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post #3 of 7 Old 11-24-2009, 01:18 PM Thread Starter
KevinR
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Yes, I was trying to get a feel for dimensions. I hadn't seen any listed (maybe I looked at the wrong ones haha) And I was also looking for some more information on the issue of hydrolocking because I had read briefly about it in one thread but it wasn't elaborated on more than that. Maybe using a prefilter could help that?
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post #4 of 7 Old 11-24-2009, 01:21 PM
patricknolan
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Watch videos of jeeps on youtube going through puddles. That should give you a good approximation on how high you need your filter to be to be able to go through a puddle X feet deep.
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post #5 of 7 Old 11-24-2009, 01:40 PM
Benderff
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I am also getting ready to do one. The write-ups I read used 2-1/2" or 3" pipe. One of them picked up an extra air box to intake pipe and used that. There are a number of write-ups about this. If you are having a hard time finding them on here try Google.
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post #6 of 7 Old 11-24-2009, 02:07 PM Thread Starter
KevinR
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Thanks Benderff, that's what I needed I'll start designing around a 2.5 inch pipe and see what I can make work
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post #7 of 7 Old 11-24-2009, 03:19 PM
Benderff
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You can search Cowl intakes as well for more under the hood ideas. This is what I'm thinking about doing.
Jeep Horizons :: 4.0L Cold Air Cowl Intake With a snorkel cap.

If you use a precleaner keep in mind how much air flow you will need it to allow.
C.I.D.-Cubic Inch Displacement R.P.M.-Revolutions Per Minute Vol.Eff.-Volume Efficiency

Gasolineup to 2500 r.p.m.=.80 2500 to 3000 r.p.m.=.75 3000 to 4000 r.p.m.=.70
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