how to use bmc with m20 b25 airflow meter

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Thu Dec 05, 2013 8:12 pm

Hi all, I have bought a bmc carbon filter with the round end, can anyone tell me how to match it to the airflow meter as it doesnt fit the square of the meter, thanks
jmc330i
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Thu Dec 05, 2013 8:51 pm

From memory the BMC boxes should come with an adaptor that bolt to the AFM.
James
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'93 318i touring 16v
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Thu Dec 05, 2013 9:00 pm

jmc330i wrote:From memory the BMC boxes should come with an adaptor that bolt to the AFM.
It is a used item that I bought of a friend, it was bought for a vw, can the adapotor be bought seperate from anywher?
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reggid
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Thu Dec 05, 2013 9:02 pm

it is available, I've seen them on ebay
E30 325is with M20B31
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Thu Dec 05, 2013 9:28 pm

reggid wrote:it is available, I've seen them on ebay
Ive searched there and there are no adaptors for the square part, iv also been on the cda website and theres nothing on their acessories section.
jmc330i
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Thu Dec 05, 2013 10:08 pm

A very quick search found these couple...
http://m.ebay.co.uk/sch/i.html?kw=e30+a ... SREF&cid=0

You would need to check sizes etc for your exact CDA.
James
'91 325i Sport
'93 318i touring 16v
craigieeb
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Thu Dec 05, 2013 10:31 pm

You also need to check the flow rate of the filter, if it's not the right one for your engine, say it's from a 1.6 etc..

it will choke up and cut out!
:)
M50 Turbo!!! :o I shall say no more :D
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Thu Dec 05, 2013 10:37 pm

jmc330i wrote:A very quick search found these couple...
http://m.ebay.co.uk/sch/i.html?kw=e30+a ... SREF&cid=0

You would need to check sizes etc for your exact CDA.
Thanks for that, I tried quite a few search words witch came up with nothing I was looking for. :D
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