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Re: Removing Cats



>
>Now if you remove the material from it, as the exhaust flow enters it, it will
>spill into a large chamber with very different head loss characteristics as
>compared to one with the honeycomb in it.  This will create exhaust SWIRL,
there
>will be changing velocities all over the place, and the exhaust will not flow
>smoothly into the exhaust pipe downstream.  Additionally, the pressure will
>decrease in the cat, and then have to be increased again going into the exhaust
>pipe downstream due to changes in cross sections.

You have it backwards, when fluid velocity DECREASES, pressure INCREASES.


>
>Now everybody can slam me!
>
Could'nt resist the temptation....

>Paul Waterloo
>

Alan