replace airbox with cone - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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#1 (permalink) Old 04-24-2009, 02:39 AM
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replace airbox with cone

has anyone replaced their airbox with a cone on a 91 318ic because i took apart my box and i tried attaching a cone at the end where the mass airflow sensor is but the outlet where it would be attached is square.... Is there anyway to swap the airbox with an intake cone?




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#2 (permalink) Old 04-24-2009, 06:50 AM
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#3 (permalink) Old 04-28-2009, 03:19 PM
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is the adapter bmw specific or can i pick this up at autozone or something? I'm guessing it's gonna be bmw specific but you never know. Has anyone else gotten it and where did you get it?



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#4 (permalink) Old 04-28-2009, 03:36 PM
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measure the inlet and run down to home depot. get a PVC adapter square to round and stick the cone filter on.

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Two wheels or Four, I'm happy as long as the throttle is pinned.
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#5 (permalink) Old 04-28-2009, 03:55 PM
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thanks man i'll try that out today and see if it works out. I thought i might have been able to do something like that but wasn't too sure.



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#6 (permalink) Old 04-28-2009, 03:55 PM
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Quote:
Originally Posted by german-speed-demon View Post
measure the inlet and run down to home depot. get a PVC adapter square to round and stick the cone filter on.
*cough* Ghetto *cough*

Im just messin around.

If it works it works... Cant doubt that.

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#7 (permalink) Old 04-28-2009, 03:59 PM
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yup no need to spend more money then you need to.



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#8 (permalink) Old 04-28-2009, 04:09 PM
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well on top of that you can do that for the time being in order to see how it will run, and use that in the meantime you can find a suitable replacement.

it is ghetto, i'll be the first to admit, but it works

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#9 (permalink) Old 04-28-2009, 04:43 PM
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I heard that putting a cone on an e30 was more or less a waste of time...is that just scuttlebutt? It's something I have considered as well for mine, but haven't made a move to initiate anything yet.

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#10 (permalink) Old 04-28-2009, 05:46 PM
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... what is with people putting Cones on? Unless you just any kinda heatshield you just took you nice stock CAI system and put it into hot air from the engine compartment

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#11 (permalink) Old 04-28-2009, 05:49 PM
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while on the ghetto aspect, carboard and tin foil make good heat shields

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
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#12 (permalink) Old 04-28-2009, 07:56 PM
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...with a fully custom fit at that. A6&7, agreed. A heat shield is certainly a must with a cone.
I have seen them on EBAY eBay Motors: BMW E30 heatshield cone intake CAI M3 325 heat shield (item 220395488132 end time May-13-09 11:09:11 PDT) as well.

edit:
Wow, I just read the rest of the ad for that shield. That guy is rather...um...confident about himself and his product.

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Last edited by PhatCat; 04-28-2009 at 08:03 PM.
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#13 (permalink) Old 04-29-2009, 12:38 AM
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^ thats a nice shield A MUST for a cone filter

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#14 (permalink) Old 04-29-2009, 02:30 PM
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Quote:
Originally Posted by AlpineSixAndSeven View Post
^ thats a nice shield A MUST for a cone filter
I would have to agree that unless you are running a heat shield that a cone filter is rather useless. Although you will be bringing slightly more air into your engine, it will be hot from the engine bay.

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#15 (permalink) Old 04-30-2009, 01:45 AM
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i just installed it today with no heat shied but i ran it down to where the stock box sucks air from and its far enough from the engine that in my opinion a heat shield isn't needed.......well for the time being, i'll put one on eventually but for the time being i don't think it's getting much hot air from the engine. It made my exhaust have more throat to it; sounds so much better. I can just see the criticism pouring in from this but it's whatever.




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