Question about flame arrestors and air intake?
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Question about flame arrestors and air intake?
Is there any way to test if you are getting enough air through your flame arrestor? I have twins 496 Mag HO's, they are so tight in the engine compartment I wonder if they get enough air.
The back seat is 1/2 inch in front or the flame arrestor. And the hatch is practically down on top of the plastic engine cover. Which also seems to restict air to the flame arrestor. I was thinking installing a K&N filter ( do these meet Coast Guard requirements ) And removing the plastic engine cover.
Has any one installed a K&N on a 496 Mag HO? If so what were the results.
Thanks Kirk
The back seat is 1/2 inch in front or the flame arrestor. And the hatch is practically down on top of the plastic engine cover. Which also seems to restict air to the flame arrestor. I was thinking installing a K&N filter ( do these meet Coast Guard requirements ) And removing the plastic engine cover.
Has any one installed a K&N on a 496 Mag HO? If so what were the results.
Thanks Kirk
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Im not sure on the new 496 but on the 454 and 502 EFI Mags the K&N filter provided little gains. I put one on my boat and saw no real gain. Not enough to see on the speedo on a V bottom. One area people have seen gains with is more air into the engine compartment. Several people have said that raising their engine hatch 1 inch when at WOT would give them another 100 rpm and a coouple of mph. I think the gains come from lowering the intake air temp.
What kind of boat do you have? Some boats engine compartments breathe better than others.
Ron
What kind of boat do you have? Some boats engine compartments breathe better than others.
Ron
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Ron I have a Sunsation, I actually was going to try to run it with the engine hatch open a little to see what happens. The back seat is part of the hatch, so I don't know how much air will get in their. But it will be worth a try, as long as no one is stting in the back
Kirk
Kirk
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Installed EMI's on 454mags, no noticeable gain. There is a difference between auto and marine. Make sure you get the USCG certified version, it's usually stamped into the rubber and costs a bit more.
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Dean Ferry
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03-03-2005 07:28 AM