homemade cold air intake help

[bmwlova202]

hey guys i have a 1993 318i and i cant seem to find a cold air intake anywhere. i dont think they make one so i want to make my own.... does anyone have any instructions or tips on how to and materials i should use?
would appreciate help

bmwlova202

[FL318i]

hey guys i have a 1993 318i and i cant seem to find a cold air intake anywhere. i dont think they make one so i want to make my own.... does anyone have any instructions or tips on how to and materials i should use?
would appreciate help

bmwlova202

hey, i wouldnt recomend a CAI aparently doesnt seem to work or give u any gains for what i heard unless you do a heat shield around the filter cause our engine bay tend to get pretty hot, my best advice will be to just buy a panel filter from k&n or other company that will give u the best gains IMO.

[bmwlova202]

hey, i wouldnt recomend a CAI aparently doesnt seem to work or give u any gains for what i heard unless you do a heat shield around the filter cause our engine bay tend to get pretty hot, my best advice will be to just buy a panel filter from k&n or other company that will give u the best gains IMO.

thanks for the tip...  dont know if it will work but i found i heat shield wrap that goes around the tubing... so thats what i was thinking. do u think that would work?

[FL318i]

ive seen it done but i dont know about performance gains it will sound nice but can tell you abou performance , sorry

[bmwlova202]

its fine i looked in my engine compartment and i saw that id have to move stuff round anyways and i dont want to deal with that... thanks for the heads up tho... have any performance tweaks u can think of?.... my cars already chipped and i messed with the airbox a little. i took out the cone thing in there

[D. Clay]

Link to template.
http://members.dodo.com.au/~wawawa/

[123willy4]

http://members.dodo.com.au/%7Ewawawa/

I looked at the CAI on here, and it looks very nice,
but wouldn't painting the metal shield around the cone filter black make it absorb heat from the engine bay instead of deflecting it?

any thoughts?

[gearheadE30]

Black only absorbs a noticeably greater amount of heat if the source is light. Otherwise, it all depends on the material.

[sand_m4n]

During the summer I bought what I thought was a CAI from bavauto.com how ever it turned out to be a big air filter that replaced the stock intake housing. IMHO it gave about 4-7 horse power increase over stock. How ever i have never taken it in for a dyno run. Even if i am wrong about the hp gains the sound it produces is almost worth it, you can hear the the air being sucked into the engine which at times sounds like the whistle from a small turbo

Here is a link
http://www.bavauto.com/shop.asp

[haledj]

I would just get a new  mahle paper panel filter from mahle instead of a  k&n, the stock paper filter flows better.

[hoevesruperd]

there an adapter on ebay for dirt cheap that will allow you to go from the AFM rectangular opening to the circular one needed for the cone filter then buy aluminum sheets, make a prototype with cardboard so you know where to cut and fold and do it.

in my opinion its a fun project. who cares if it gives you hp increases or not. at least it cleans up the engine bay and makes this nice true to bmw sound.
then post pictures when you're done!