Reply to "Size of Air Filter"

noquarterMember

To really evaluate a filter's effect on HP, you'd need to dyno the engine with it on and off. One thing is the area, another the flow it creates inside it.

When I go boating I have a kind of a dyno, you can immediately read the effect of any change you do on the top speed. In my twin engine boat I had normal flame arrestors on. I replaced them with K&N marine filters that had a filtered area much bigger than my venturi area, but lost almost 1 mph. Took them off alltogether, gained more than 1 mph. So a waste of money

11/23/164:21 AM

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