Focus Fanatics - View Single Post - Deleting the tumble flaps
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Old 10-15-2011, 10:34 PM   #40
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Join Date: Sep 2010
Fan#: 78699
Location: Kansas city, MO
What I Drive: 2007 ZX3 SE

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Played around with it today a little more. It seems ive lost a little low end acceleration. Idle to around 2-3k seems slower or more slugish but once it gets past that i feel a little more gain.

Not really what i wanted, i wanted more bottom end but im going to leave it because i think im going to install cams and a larger TB so maybe that will help?

I understand why they are there now, its a cool idea. When your at a lower RPM the flaps close down and force the air threw the smaller closed off opening i dont think it actually tumbles the air as much as it increases the velocity and i think thats where it helps.

I wouldnt recommend doing this. I think the stock intake is best left like it is so far.
My car rattles because i need new motor mounts, not because i dont know how to adjust my stereo.
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