Filter mod vs. K&N High Flow - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 8 (permalink) Old 05-06-2011, 10:52 AM Thread Starter
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Question Filter mod vs. K&N High Flow

Hey gang,
I have read up on the air filter mod from previous threads. Am I not doing virtually the same by installing K&N High Flow Air Filters ?
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post #2 of 8 (permalink) Old 05-06-2011, 04:39 PM
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Don't do either...

Don't you guys ever read any of the research done on RC51.org?

Stick with the OEM air filters.
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post #3 of 8 (permalink) Old 05-06-2011, 04:44 PM
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yes most of us do.....

the stock air filter flows more then enough for the stock airbox

i do not think removing the wire mesh will flow THAT much more to the point where it will honestly effect much....i did it to mine when i first got my bike and did not notice any difference.

I do know high flow filters negatively effect the performance of this bike....the capacity of the airbox is not large enough for the extra flow.

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Last edited by gts455; 05-06-2011 at 05:05 PM.
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post #4 of 8 (permalink) Old 05-06-2011, 05:07 PM
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if you are looking for more flow....get a turnone/thorsten box...or an HRC/Moriwaki if you could find one.

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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post #5 of 8 (permalink) Old 05-06-2011, 05:14 PM
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Quote:
Originally Posted by gts455 View Post
if you are looking for more flow....get a turnone/thorsten box...or an HRC/Moriwaki if you could find one.
The size of the airbox can increase the reserve amount of air available when you whack the throttle bodies wide open which is many times beneficial to throttle response, but it does not control how much air flows through it.
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post #6 of 8 (permalink) Old 05-06-2011, 11:37 PM
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thanks for the correction, you are absolutely right. The airbox is for holding air capacity....not flow. wasn't thinking straight.

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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post #7 of 8 (permalink) Old 05-08-2011, 08:01 PM
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I removed the mesh off of the stock filters...dyno coming soon once it stops raining long enough.



The very first schoolbook that was written had God all over it. --Dave Mustaine
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post #8 of 8 (permalink) Old 05-08-2011, 08:21 PM
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A Turnone airbox & snorkel kit give some power improvement not only because of increased volume, but also because it's more efficient at being a pressurised system than the much smaller standard airbox. Just make sure it fits nicely against the underside of your tank and your mapping is slightly enrichened at WOT.

It's one of the best mods for the money available for the RC51.
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