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Re: One more question, Shawn.......(m) (archive)
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Posted by Shawn Fogg on January 08, 2001 at 12:56:31:

In Reply to: One more question, Shawn.......(m) posted by Matt D. on January 08, 2001 at 12:28:58:

Matt,

"What would be the effect of fitting the additional hose to an opening in the new fabricated airbox? I have not looked at a newer model 1.9, but wouldn't it be the same as having the hose enter the top of the factory box above the filter panel?"

You mean attaching the hose to the heat shield somehow? If so you would be letting unfiltered air into the smog pump which can't be a good idea. You might be able to use a small crankcase breather type of filter on the smog pump but I don't know how well that would work. I think the smog pump pumps a fair amount of air when it is running, probably more then what that type of filter is really built for.

The smog pump has a fair amount of intake noise. On my brothers 318ti ('98) it is pretty obvious when it kicks in and that is with it still attached to the airbox.

Shawn

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