Re: E36 M3 euro air intake system questions

[Jim Ochi <jochi@xxxxxxxxxxxx>]

From: Jefrem Iwaniw <jiwaniw@domain.elided>
>
>On Mon, 25 Jan 1999, Hou Aaron wrote:
>	<snip - stuff about E36 M3 intake mods>
>
>Short answer: 3.5" K&N cone filter + heat/turbulence shield + Euro HFM +
>adapter + JC chip tuned for all this = ~28 HP on some vehicles.  Skip the
>euro airbox.
>

Jefrem & Aaron - 

Uh, this is the way to make more horsepower on a 3.0L 95 (OBD-I) M3, but
not the way to do it on a 96+ 3.2L OBD-II M3.  From what I've read from
JimC and others who know, the bottleneck on the intake side of the 3.0L
engine is first and foremost the air flow meter, followed by the air box.
However, if I remember correctly, the same sources have found that the
bottleneck on the 3.2L engine is the intake manifold and the actual intake
valves.  So, changing out the afm and swapping the airbox doesn't really do
very much.  Probably the best mod until more tuner parts are developed is
just to do the JimC chip...

Hope this helps,

Jim Ochi
jochi@domain.elided


>Long answer: see the archives, or bmwmpower.com, or bmwmseries.com, or any
>of the countless other sources of information on this topic (heck, if I
>know about it, then it must be common knowledge :=)).
>
>> Why didn't our E36 M's come with the euro goodies?  Pricing?
>
>I think it has more to do with CAFE, but I'm making this part up, so I'll
>stop...
>
>> 
>> If these parts are genuine BMW, then I would appreciate part #s even if
they 
>> are not available through US dealers, since I have travel plans to Europe 
>> soon.  Anybody know if parts are cheaper there or here?
>
>The M3 Euro HFM is the same as that found on the M60 US engines (e.g. 540,
>740).  I dunno if you need to match -- e.g. S50 --> M60, S52--> M62, etc.,
>but I'm sure somebody else does.
>
>Heck, I don't even know if you can do this to an OBDII car like yours, or
>if this is an OBDI-only mod.  Good luck.
>
>- --------------------------------
>- -Jefrem Iwaniw, jiwaniw@domain.elided, '72 2002, '94 525i]
> Keller, TX
>
>

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