Cold Air Intake Question

[Ivan413]

Well wouldn't the filter in a carbon fiber cylinder defeat the purpose of removing the entire air box in place of something exposed to increase the air flow?


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[1992 318i]

well, it's not as large and bulky.

[Ivan413]

Well it all depends on if you plan on turbo charging or supercharging the car? If you have those plans see the specs of the intakes and I would choose the larger air flow so you won't be running too rich or lean


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[Lord Vader]

Theirs two types of aftermarket intakes guys. COLD air intakes, and HOT air intakes. Please note that if you want to upgrade make sure the intake includes a heat shield to keep all the hot air from the engine out of the intake. Cars run better with cold air as its more dense. That is exactly what the stock intake does. Throwing a filter on the end of the intake tubing will actually decrease your fuel milage and performance, although not very noticeably.

Upgrading your intake can be a good mod, but more for throaty sound and a little bit of a better throttle response. If you were going to turbo your car you would need a whole new intake manifold anyway. The performance gained from an intake is mininmal, unless combined with an exghust, and under drive pullies. If the car is taking in more air then stock, its also getting rid of more air then stock, thus a less restrictive exhuast is needed. Combine all three and you WILL notice a difference in performance.

Ivan, you could have a 5" intake, and as long as the MAF is working correctly you dont need to worry about running rich or lean. The car is designed to compensate appropriatly. Also just because you have a 5" intake doesnt mean your throttle body, or intake manifold is also 5". Their is only so much air you can force into your throttle body at one time, regardless of how big your intake is. And with a Supercharger, you only need a new intake becuase the supercharger takes up the space where the stock airbox was so you need an intake that mounts the filter down low in the bumper.

[1992 318i]

My new intake is a 3" but its not just a cone with a shield but a filter inside a carbon fiber cylinder that covers the filter completely. the filter its a regular cone filter. Is that intake as good as a cone filter that requires a custom shield. my intake does come with a shield its the carbon fiber cylinder.Let me know please.

[Lord Vader]

3" is standard. As long as the CF cylinder prevents hot air from getting into the intake then it is good. Is it mounted in the same location as the stock intake was? Or down low in the bumper? Post pics if you have them.


This is my intake. CF Conforti intake:

[1992 318i]

Yeah it can go in the same place has the stock one and should fit the grill vent for the intake, Its a kammotor intake. Paid $131 getting it today, but I need a MAF adapter. I looked up your intake its nice what did that cost you?

[Lord Vader]

I bought that back in 2006. At the time I didnt have a credit card so I was forced to buy it locally. I paid $500 for it. I could have gotten it cheaper online, however no credit card forces your hand. To replace that filter is $80 alone. Its geniune CF too.

I tried googling the one you mentioned to find a picture, but nothing comes up. Just a website called Kamracing.co.uk.

[1992 318i]

Yeah I had a hard time finding pictures of it too. Mine looks just like this one just different brand. Simota Carbon Intake - Subaru Impreza - Subaru Impreza 5D 1.5R Sportshift (A) 2008 Upgrade - Driver's Parking Lot - oneshift.com - Singapore

[Lord Vader]

Interesting. Looks like a muffler. Not sure what that acomplishes over stock other then apperance wise.

I would stick with a more mainstream brand of intake personally. That way if their is a problem with it, their is more available options to you, especially filter replacement.

[1992 318i]

I figured that it could kinda be like a reg cold intake, but taking less space and it does have some sort of heat shield. and it uses that grill vent for the air

[Lord Vader]

So basically its the exact same as your OEM intake, except in CF. The idea is the same, but its probably less restrictive over stock.

[1992 318i]

yeah thats I'm thinking