> From:          rob_alarcon_at_adc.com

> Date:          Sun, 02 Nov 97 22:14:30 -0600
> To:            <buckland_at_mail.xmission.com>
> Subject:       M3 cold air ram

>
> Carl,

>      

>      Was your advice for routing the 3" hose through the bumper for the E36 
>      or E30 variety ? I have an E30 I'm figuring needs some cool breeze and 
>      would appreciate any help  you could offer. 
>      
>      I saw you mentioned a heat shield manufacturer also (triggers ?).  Any 
>      more info on this ?
>      
>      TIA  Robb A.
>      90 325is
>      85 325e

>
>
>
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I know only about the E36. I think that it is a 3 1/2 " hose, although I have not actually measured it. It is slightly larger than the intake whole on the airbox. I can't help you with an E30, but I am sure that the same principal holds. A heat shield is for keeping engine bay heat away from the open cone filter. I don't use an open cone , nor do I think that a heat sheild is adequate. It will keep out the heat, but it will not provide for forced, outside cold air. With a cone filter and heat shield set up, the air comes from behind the headlamp and trickles in from the radiator. With a sealed hose coming from the grill, you get not only cold, outside air, but it is entering the car with a certain amount of force, depending on the speed at which the car is traveling. This is "ram air."

CB