Re: Adding K&N counterproductive?

["Thomas Petersen" <bmw318is92@xxxxxxxxxxx>]

I have the K&N cone air filter installed, and you're right - if you don't do 
something to isolate the filter from the rest of the engine compartment - 
the gain from the filter is close to nothing! However it's not that 
difficult to do something about it. There was a posting on the list with a 
good solution to the problem: 
http://home.flash.net/~jleung20/bmw/Heatshield.htm

Regards,
Thomas Petersen
'92 318iS Coupe - Supercharged to 205 HP.


>Date: Thu, 4 May 2000 01:27:19 -0500
>From: "Mike Theuri" <mikesoft@domain.elided>
>Subject: Re: Adding K&N counterproductive?
>
>It probably would especially in the summer weather
>given that with hotter air, you have less dense air
>which results in less fuel for the engine and that
>results in less engine power. But it would be a good
>idea to wait and hear from actual K&N users.
>
>However there are solutions out in the market that
>would allow you to have the same effect of adding the
>K&N cone air filter but ensuring that you have a 'cold air
>intake' through the use of thermal resistant plastic.
>One such aftermarket kit runs about $395. I can send
>the details if you contact me privately ( no affiliation
>and no personal use of the said product...just read
>about it in a performance mag).
>
>Mike Theuri
>93 318i
>
>- ----- Original Message -----
>From: "Jason Surprise" <jmsurpri@domain.elided>
>
>
>>I have heard that removing the air box and adding a K&N cone >actually
>>reduces performance because the air that is used is from the engine >bay,
>>which can be of much higher temperature than the air from outside.
>>If you have a K&N cone in your bmw, can you comment on the >effectiveness
>>of it and if you have experienced the problems described above?
>>
>>Thanks,
>>Jason
>>94 325i
>>
>>
>>--

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