Dodgy Induction Kit

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willow
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Fri May 20, 2005 9:20 am

Hi folks,

My 325 seems to be running a bit rich these days and I've noticed that a lot of the hoses are looking a bit past it. So I think a new induction kit is in order. Anyone know how much these are from BMW?

Cheers,

Ciara
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pm9575
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Fri May 20, 2005 10:18 am

Hoses are cheap enough from people such as Motormec, Euro Car parts, German & Swedish etc.
If running rich is a problem - try turning the inset screw on the air intake housing (aluminium section of the MAF) - this also reduces your CO at idle -and most MOT garages will hook up their CO reader to help you adjust this. (325i needs to read around 135 ppm).
There are many views for & against cold air induction kits so the best thing is to figure out how to feed more air into the standard air box, fitted with a decent panel filter - if this is what you have?
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Fri May 20, 2005 11:22 am

Unless you're going to run a heatsheild of sorts, I'd avoid aftermarket open style induction kits. The BMC is a closed unit and they are available cheap through Sal (M5PILOT).

Other than that a test has proved the std air filter and units are the best design for allround performance for the stock motor.

http://www.bolhuijo.com/airflowtest/

HTH, Mark.
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Jimbob
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Fri May 20, 2005 1:03 pm

There isn't enough room in the bay of an M20 for the BMC to fit without the help of an angle grinder :cry:
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Brianmoooore
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Fri May 20, 2005 2:11 pm

First thing I'd check on a 325 running rich, is that the blue temp sensor on the thermostat housing is behaving itself.
willow
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Sat May 21, 2005 3:06 pm

Cheers guys

I've just had my tappets adjusted and they also adjusted the CO2 at idle for me 8)

So I've ordered a new induction kit from BMW (Ԛ£130ish) and that will go on next week 8)
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