The only way to build an intake... - JeepForum.com

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post #1 of 96 Old 12-28-2006, 04:10 PM Thread Starter
Bryson
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The only way to build an intake...

To start off...

FACTS:
1. You don't need a stupid cone filter
2. the gains seen from simply removing the air box is negligible.
3. You don't need to actually spend money on an intake.

Now that we have that covered, I'm going to shed some light on this typical upgrade.

- The stock air box reduces the intake harmonics by simply canceling out those air "pulses." It is VERY easy to mod the stock box so it is incapable of canceling out those harmonics.
- The stock air filter's surface area is more than enough to feed the engine, without being a major restriction. The surface area gained by a typical cone filter is marginal.

Now where is all of this going?....


Yes thats right, it's a typical hole saw. While some of these can get very expensive depending on the brand, you can find them for as little as $5. I reccomend getting a 2.5", but a 3" should also work.

Now all you have to do is drill 2 holes on the passenger side of the airbox (faces the engine compartment). Clean it out, and replace the filter. DONE.

Now you have yourself an intake that will flow just as much as a cone filter, with a nice deep sound, and with the looks of stock. How bout that? And all for about $15 bucks (depending on what filter)

I'll get some pics of mine here soon, but it shouldn't be that hard to picture what i'm talking about.

Enjoi.



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post #2 of 96 Old 12-28-2006, 04:31 PM
Arcticcat843
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Ok first of all its not that much cheaper. I only have about $25 into mine
and second, you cant pop the hood and have the satifaction of saying you made something

But i guess it would be easier this way
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post #3 of 96 Old 12-28-2006, 04:34 PM Thread Starter
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Quote:
Originally Posted by Arcticcat843
Ok first of all its not that much cheaper. I only have about $25 into mine
and second, you cant pop the hood and have the satifaction of saying you made something

But i guess it would be easier this way
My grandma could fab up a cone filter extension... I wouldn't get too worked up about it.

And futhermore, this way you won't void any power train warranties if it happens to come to that.


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post #4 of 96 Old 12-28-2006, 04:36 PM
alexrule123
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i did that with mine originaly and still the air intake has seemed to make more of a difference....

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post #5 of 96 Old 12-28-2006, 04:38 PM Thread Starter
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Quote:
Originally Posted by alexrule123
i did that with mine originaly and still the air intake has seemed to make more of a difference....
How big were your holes?

I doubt the average butt dyno would be able to tell the difference (with comparable filters of course).


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post #6 of 96 Old 12-28-2006, 04:39 PM
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Quote:
Originally Posted by Bryson
How big were your holes?

I doubt the average butt dyno wouldn't be able to tell the difference (with comparable filters of course).
i drilled several holes that were about 1" in diameter. and the air intake makes a diff on the highend rpms. i raced rasta_coty (while going 30 mph) and we were even until about 3500rpms then it was like he let off the gas and i pulled away..but he didn't. now off the line i walk him all the way, but that is soon going to change since he ordered an air intake and soon to be bored throttle body.

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post #7 of 96 Old 12-28-2006, 04:44 PM Thread Starter
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Quote:
Originally Posted by alexrule123
i drilled several holes that were about 1" in diameter. and the air intake makes a diff on the highend rpms. i raced rasta_coty (while going 30 mph) and we were even until about 3500rpms then it was like he let off the gas and i pulled away..but he didn't. now off the line i walk him all the way, but that is soon going to change since he ordered an air intake and soon to be bored throttle body.
That might be why. The two large holes will flow much more air than a lot of smaller holes due to the restrictions of the holes themselves. It's ideal to have the holes match the size of the intake tube.


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post #8 of 96 Old 12-28-2006, 05:01 PM
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Quote:
Originally Posted by Bryson
My grandma could fab up a cone filter extension... I wouldn't get too worked up about it.

And futhermore, this way you won't void any power train warranties if it happens to come to that.

Check your facts again. They cannot void a warrenty for an air intake, but they sure will try
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post #9 of 96 Old 12-28-2006, 05:03 PM
alexrule123
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Quote:
Originally Posted by Dragisco
Check your facts again. They cannot void a warrenty for an air intake, but they sure will try
or you put the original one back on

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post #10 of 96 Old 12-28-2006, 05:04 PM
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Quote:
Originally Posted by Bryson
My grandma could fab up a cone filter extension... I wouldn't get too worked up about it.

And futhermore, this way you won't void any power train warranties if it happens to come to that.
Mines a 96' so there is nothing to void
and im not a great welder like you (i have seen you turbo stuff ) so i was pretty proud of it, in fact:
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post #11 of 96 Old 12-28-2006, 05:16 PM
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I like my intake.... I got a kick butt boost according to the butt dino, it sounds great and its soo much more pleasing to look at than a hole in a box lol... your intake would definitely work great on a sleeper tho! I would have never thought of doing that, i give you a 10 for creativity, its great for someone who wants power on a budget

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post #12 of 96 Old 12-28-2006, 05:54 PM Thread Starter
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Yeah, I'm by no means saying that Intakes are worthless! I'm simply saying that there are other means to getting the same results.

Great work guys!


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post #13 of 96 Old 12-28-2006, 10:52 PM
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i've never been to this forum, but i decided to check it out to see if I could find any cheap ways to spice up my xj. this was exactly what i was looking for. i'm going to try it tonight or tomorrow, cant wait, let you know how it goes, thanks!
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post #14 of 96 Old 12-29-2006, 12:56 AM Thread Starter
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No problem! I'm sure you'll be happy with the results.


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post #15 of 96 Old 12-29-2006, 10:39 AM
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Wouldn't the OP solution pull the hot air in from the engine compartment?
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