Texas_Cali

More and more i've been seeing people claim gains of power with an air box mod similar to the pic below...Courtesy of "sxt sport uk", and no im not trying to be an ass about it and no im not exploiting him in anyway i just need the pic.


Some time very soon i will do a test of 0-60MPH using a cam corder and an audio recorder.

INFO ON TEST
1. Car is a 2007 Dodge Caliber 2.0L
2. Testing an AEM dryflow filter with about 7-8 inches of 3" aluminum tubing with a 1"nipple for the crank case vent hose. I WILL NOT BE USING A BREATHER FILTER
3. tubing and filter will replace stock air box

The Test
The test will be a stand still stop and accelerated to 60 MPH, while being recorded by video to show that it is going from 0-60 and a sound recorder so i can load it to the computer and use a program called Gear Pro 7.0 to see the frequency of the audio curves and use the curves to create and ET by isolating the curve where the pedal is being floored to the time the engine bogels down. I will compare a stock run and a run with a similar set up like the one above, i wont be using a breather filter, the crank case hose will be connected to the "intake"

WHAT I EXPECT FROM THE TEST
IMO, i think the ET will be less with the stock air box and this mod does nothing for performance because your engine has the last word on how much air it takes in. It's like your lungs, when you take a deep breath in what happens. your LUNGS tell you how much air you can take in, there is nothing you can do to force more air in. you can take off your filter completely and your engine will only use what it needs. I believe that since more air will be taken in than what the ECU is programed for especially because of the VVT it will probably slow the intake portion of the cams timing and the engine will compensate the extra air with the fuel but a lengthy amount of time will be taken up in the process due to the confusion. This is strictly performance testing not MPG testing. Everything will be video recorded from the actual testing and putting the "intake" on to measuring the sound curves on the audio.

WHEN TO EXPECT A CONCLUSION
I work at UPS and working at UPS on a holiday such as the up coming Christmas is like working at a slave camp on crack, coke, speed and those chocolate covered peanuts all at once so I would say Saturday or Sunday you guys can expect results

okiecaliberguy

Radruss RT posted his dyno readings after adding his muffler and then mass flow intake. he gained a little under 10hp. I don't know if i gained any hp or torque, but my engine sounds a hell of a lot better. I can really hear the difference at WOT. Also, I'm not sure about my Caliber, but there was a quick way to reset the fuel map to compensate for added air. Basically, warm car up, disconnect battery for 10 minutes or so, connect battery, start car. the computers adjusted the fuel accordingly at this point so there's no confusion while driving. Here's a couple of pics of my setup. I left the air vent in, but removed the rubber that was installed in front of it. you can't really see my breather filter from these pictures though.

Attached Thumbnails

   

Texas_Cali

The battery disconnect method is commonly suggested by Intake manufactures like AEM to reset the ECU to adjust to the extra airflow. This doesn't always work though...Ask anyone with a Chevy Cobalt w/ 2.2L ECOTEC and an intake, they will tell you this doesn't work.

that rubber seal was there to make sure as little water could get into the fresh air vent as possible . Your compromising your engine, if enough water gets in you could hydro lock your engine.

Just out of curiosity why did you decide to go with the breather filter and not connect the hose to the "intake?"

okiecaliberguy

i know the rubber was there to keep water out. actually i was going to add that to my post. anyway, unless i'm driving through a torrential downpour or a river, I don't think water will be going through the foam filter. I bought the filter and holder from greddy. i bought the 45 degree bend tubing from pep boys. it didn't have a place to connect the breather hose. so, i put a breather filter on it.

Texas_Cali

ya it's highly unlikely that water will get in but you never know...Like when your washing your car or what ever in a car wash those things shot a pretty good amount of water at high velocity so there is a small chance. but like you said...unlikely. Just make sure you maintain (oil) that filter. I had a buddy one time with a Mazda MX-3 and he didn't oil it and well....the turbo ate it up to say the least...and all those little pieces got in his engine. IMO i would suggest you find a replacement for that tubing using a breather filter can hurt your engine sometimes

okiecaliberguy

i know what you mean by the car wash thing. when i wash my car i usually wash the engine too. i cover the airfilter with a plastic bag that has a draw string. I learned that lesson on my integra. i wasn't thinking and ended up soaking my filter. i had to walk to my friends house to get a replacement because i was scared to start my car. i always hand wash. the automatic one's never really get my car clean enough to satisfy my mild case of OCD.

I've been looking for a replacement for my 45 degree bend tube that enables me to connect the breather hose, but i haven't found one yet. how can the filter hurt?

Texas_Cali

Emissions and gas millage can be effected by the filter, maybe not now since it's still kinda new but latter on it'll show

okiecaliberguy

oohhh. that makes sense. I'm not really worried about gas mileage though. i kinda have a heavy foot so i'm burning more than i should. we don't have emissions tests out here any more either.

on another note. i took your advice, and called a couple of muffler shops. they can do the 2 1/2 " header-back exhaust for about $120 if I provide my own converter and muffler.

caliber172

His dyno readings were after both his intake and exaust mods, not just the intake mod. We need to see the results after only one mod at a time.

caliber172

Do some testing before and after for the rest of us. Gas milage, 0-60 times and if possible dyno test. Make one mod, re-test and document, then another mod, and retest, then document. That way we can see whch mod has the most impact to the car.