buysellny

I agree on the water issue.. I might leave it.. I'm being honest.. the throttle body did the most.. but at wot.. on highway its got more power.. way more power off the line.. the injectors are rich to begin with.. I think this combo works.. definately more power.. feels like a lot more and I have Nø reason to lie and I don't brag.. its wild really

buysellny

I know all about it.. its not a closed system.. your missing the point.. I'm using 4inch pipe too

That Jeep Guy XJMJ

i get your point but my comment was geared more toward a basic open system "CAI" on the cheap.... i understand your intentions behind your intake but if someone else on here does the same thing without the bored intake they're not going to get any real gains they will just end up with a gaudy contraption built at home depot
No Offense

Aldakoopa

Hey now! A little flat black paint and that thing might start looking like a water softener... give the guy a break! I kinda like it.

lurk520

I could be wrong.... but isn't the original air intake right behind the headlight anyway? So unless you have a heat shield, or your intake runs to a cowl, you are really not getting any cooler air?? I guess maybe you are getting more air though.... but like I've also heard before, if the CAI is so great wouldn't it come stock??? I'm not trying to be a smart ***, I'm just asking... I wonder if wrapping the pipe in heat wrap would help any...after about 5 or 6 miles in the city that tubing has to get a little warm doesn't it??

p.s. aldakoopa..... I like your sig......

That Jeep Guy XJMJ

i'm not saying that with the intent of bashing him i like it as well, it reminds me off a telescope for a submarine lol I know PVC won't look as clean but i know damn well it can be just as functional

Aldakoopa

I agree. I've never liked cold air intakes. They're still under the hood, there's no way they can make much of a difference. They may increase the airflow but I doubt they change the temperature. When I look at the intake on a car I think of what would let the air flow more efficiently, not how to make it cooler.

I do give this guy props for his ingenuity. And I don't think it looks that bad for something made for $50 bucks either. So long as that filter flows more than stock then he's made somewhat of a difference.

P.S. Thanks. But seriously... I don't off-road but with my old Jeep I would just plow through whatever was on the side of the road on big item pick up day, so long as it wasn't too big or heavy. However, couches were always fair game.

lurk520

yeah I used to lay pvc pipe for communication lines, so to see a CAI made out of the stuff is kinda cool. It probably even serves the same purpose as a K & N, minus the heat shield. And who knows...maybe it did make a difference. But after reading a lot of information on this forum it opens your eyes a little. Which mods really make a difference?

buysellny

All i can say is the truck has a lot more off the line snap and seams to roar to 100mph in seconds.. Never before did it have this much power.. I had a brand new, same exact truck in 2001.. that truck kicked ***.. this truck is now on par with brand new.. Its got 178K.. Im sure most of this new power is the fuel /air mix with these XR3E Ford Fuel Injectors Highly atomized spray single hole injectors.. They have been running rich for a long while.. Now I wonder if they work better with more air.. I wish i knew what was happening.. I doubt a lot of this power has to do with the air system.. My intention was to shield the filder from heat and debris and direct air straight down the top of the cone..

buysellny

haha.. these are great comments! you guys are funny.. Anyway, I like the submarine comment lol.. I think it does make a difference.. its for sure getting moer air.. Cold air? Must be colder then some open element system sucking engine heat..

The 63mm throttle body is the real thing.. along with stron injectors and more air = more power for sure.. I wonder if its 10hp.. sure feels like it!!

xr650jkallen

where did you get a throttle body for 89 bucks?

sgtskid

Other than having a slightly large opening, I don't see how thats any different from the factory box; which would be free.

_StationWagon_

There's a lot of "off-the-cuff" comments here and I see it all the time when the debate turns to CAIs. Because everyone knows it all right after they fab up a PVC CAI. OP, I dunno how old you are, but your enthusiasm is youthful and could be contagious. I dunno, maybe you never floored the XJ before you did the mods. I'll tell you this: you might have gained horsepower, but MPG I think not, considering the heavy right foot you have confessed to. Consider yourself lucky. I get 10 mpg all day long.

Guys, a metal intake like the ebay crap gives less cold air than a PVC intake which offers less than a K&N type. Why? The material it's made of. Metal is thin & a good conductor of heat. That means it heats up very quickly and so does the air inside. PVC heats up less quickly because it is denser, therefore the air coming in from behind the headlight stays cooler longer. Similarly, the ABS plastic of the K&N type tubes heats up far more slowly than metal, and therefore keeps the air inside cooler longer. (That is why the factory air box is made of ABS plastic) After coming at the headlight hole, air will NOT get heated by the engine quickly enough before it gets sucked into the TB. Hence, the aftermarket units are better.

Adding to this is the need for a heat shield. All the good aftermarket units have them. A well placed shield will help to insulate the filter from engine heat enough to keep the air cool as it passes. If the vehicle is sitting still, the air remains hot. When you start moving, the air exchange (flow) is constant, therefore always cooler. Plus, it enters the inlet & goes directly to the filter, with little chance to get heated by underhood heat. So all those "cheap" homemade units are just that: cheap under-engineered homemade units that don't do enough to achieve what you're trying to do.

Diesel

.

If that, and anything under the hood of a cherokee is not a true cai. The only way to truly gain cold air is the cowl or a snorkel.

Its in your head, I run a saab 9-3 aero at a local autocross setup and a 1/4 strip. I went from a smic to a fmic and a few other small mods, I felt the power gain, it was awesome. My time a the 1/4 before was 11.866, my time after was 11.83 flat. Its in your head cause you think it gained power. Does your jeep feel faster on some days? I know mine does, especially on warm days when Im feeling good and Im ready to go, is it really faster? No.

Your not going to feel HP in a jeep.

buysellny

its faster for certian.. I know all about CAI and I know there is no such thing.. Its a gimmick.. The truck jumps due to throttle body, exhust and airflow.. How can you say no horsepower gain? I know it is.. Not a lot but enough where you touch the gas and the truck leaps forward now.. Its a scientifically proven fact that a larger throttle body and more air flow will improve horsepower.

Its consisten also, I have brand new injectors also..