Air box to spa filter conversion test complete

913 Views 8 Replies 4 Participants Last post by Carl Coronna, Dec 5, 2018

Carl Coronna

Discussion Starter · Dec 4, 2018 (Edited)

Let the test results show, I am the father of the air box to spa filter conversion!? Is there a way to post videos on here?! No to many people thought this mod was gonna pass. But after some testing on the factory air box and tuning the spa filter with foam I got it to the exact same flow as the factory box and filter. Mock up for start up test and rev test. And WALLA! Idled perfect for about 10 mins, rev perfect any way I mashed or held the throttle.

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fishfiles

· #5 · Dec 4, 2018

I see a lot of people silicone the air box cover to the box , I don't , I apply a thick bead of aquarium silicone to the groove in the cover where the box seals over the o-ring , wet my finger with alcohol and smooth it flat , let it dry for a day , then install the cover , it fits much tighter , doesn't leak and is removable if necessary

what your spark plug looks like is the key to if the air flow is right

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fishfiles

· #7 · Dec 4, 2018

Jeepwm69 said:
I used a gasket from Jordan Mellecker on facebook. They're silicone. Slapped one in my stock 500 airbox and it didn't leak a drop.

Are they like $16.50 each !!! Too rich for my blood ! Mac told me about them a while back .

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