What are the pros and cons of cutting the bottom of the air intake box out?

If it gets Open Air (Not Correctly "Sealed"), Bassically: Your Engine will breath high amounts of Dust, and it`s too bad for it. Dust in the Engine works to wear it like sandpaper.

 

Why you wanna Cut it?

If it gets Open Air (Not Correctly "Sealed"), Bassically: Your Engine will breath high amounts of Dust, and it`s too bad for it. Dust in the Engine works to wear it like sandpaper.

 

Why you wanna Cut it?

Sounds like he wants to cut the bottom of the air box... If he left enough of the bottom piece intact so the air filter will seal up, he should be fine.

 

I doubt though you'll be able to see any performance gains. Engine may sound meaner though.

There is a way to maintain inert extra flow, and maintain original ECM integrity,and parallel original flow(good for filter as well) and stay dry. The plastic windsheild washer container and plastic duct work act as another duct, and no static.

Added quite a boost for me, altho I was extraordinarily slo due to other probs as well at the time, results were good.Very cheap, little bit of time.

You could do this(2 inch pipe):

http://img209.imageshack.us/img209/1742/picture2075ev.jpg

I'm guessing you have a turbo?

the benefits are snappier throttle, a good bit more hp especially with a good filter kn whatever, and more turbo sounds:grin: .

 

Con's, more turbo sounds and you lose the ability to suck in cool outside air.

I reccomend ditching the small pass thru to the fender snorkle and replacing it with 3" pipe minus the snorkle in the fender. You'll get all the benefits with no con's.

ATB

I admit, I just took out my airbox and installed a cone filter I have had and with the turbo engine it sounds nice.

 

I like it, nice snarl and will probly be better once I get my IC and BPV installed. I can't wait.

I admit, I just took out my airbox and installed a cone filter I have had and with the turbo engine it sounds nice.

 

I like it, nice snarl and will probly be better once I get my IC and BPV installed. I can't wait.

 

I'd go with a BOV... awesome whooshing sounds and my RX seems to be ok with it:D

You likely won't notice anything other than more noise. You won't get as much cool air from outside the car, which can actually hamper performance in warm weather, as well as lead to pinging, especially on a poorly-tuned engine. Other than that, it's just more noise.

 

A clean OEM or K&N filter already flows way more air than the engine needs. If you really need more air, a cone filter will suffice, or replace your stock filter with an aftermarket panel filter.

 

I ran a cone filter on my '92, and it didn't do much aside from make a bunch of racket and look kinda cool. On the '93, I've got a K&N solely because it's cleanable and was not much more than an OEM filter. Some have reported MAF issues with aftermarket oil-impregnated filters, but I'm of the persuasion that this is due to over-oiling.

I'd go with a BOV... awesome whooshing sounds and my RX seems to be ok with it:D

i would suggest running a bpv if you have a cat somewhere in your exhaust. when the bov opens, the ecu tells the injectors to dump more fuel in, causing the engine to run rich for a second. unburnt fuel=carbon deposits on the cats, which will over time destory them. IIRC.

Yea, I have had the BPV already. Its from a SAAB 9000. They are pretty loud from what ive heard on other SAAB 9000's.

Most definately route outside engine compartment. I don't know exact math, but to say 2 inches outside engine area would defeat a 4 inch duct inside . Also, noise stays unnoticable, while obviously gaining the cool density.

Cutting out the bottom should give you a little more power but it will be noisier, your filter will need to be changed/cleaned more often. If you have a K&N keep in mind that they flow like crap when they get a little water on them, even worse than a damp paper one!

I just cut out that silly plastic baffle in the fender area, I don't do much mudding though. You do want the cold air more than anything. It would be even better to use a ram air setup beside the radiator, I think that's what I'm gunna do on my megasquirt setup on my RX.

 

Cutting out the bottom should give you a little more power but it will be noisier, your filter will need to be changed/cleaned more often. If you have a K&N keep in mind that they flow like crap when they get a little water on them, even worse than a damp paper one!