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Reply to "Type IV"

@edsnova posted:

Gently, fellas: a cat doesn't hurt anything and helps the planet and its resident mammals breathe. 

I'll buy the blue statement. However the yellow one is not true. There is always a flow restriction through a cat small enough heat up adequately, and therefore a cost in engine output and heat management. Modern engines have been designed to work around that heat and flow restriction, but most modern hi-po engines have pretty big cats, which flow as well as possible.

Jim's wasserboxer is water-cooled, and can probably deal with the heat (although the engines in those things aren't renowned for their longevity), but sticking one a T1 is a recipe for a very short life.

Last edited by Stan Galat
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