Foam air scoop inserts, 14-15 yz450f


10 replies to this topic
  • Juice222

Posted May 05, 2015 - 08:55 AM

#1

Does anyone run them or know where I can get a set? Also curious if they affect air flow or rob horse power at all. Would be a nice option for dry days at the track.

  • krony506

Posted May 05, 2015 - 02:00 PM

#2

Does anyone run them or know where I can get a set? Also curious if they affect air flow or rob horse power at all. Would be a nice option for dry days at the track.

I have a brand new set unopened if you want them.



  • Wiz636

Posted May 05, 2015 - 02:06 PM

#3

PC Racing Flow shroud filters https://www.rockymou...Filters?v=10891

I have some for my '13. I like the fact that they will keep debris like mud or roost from entering the airbox. They are pretty coarse/porous so I doubt they have any negative affect on airflow. In super dusty conditions I have sprayed them with airfilter oil and it helped out. But I run them primarily to keep debris out.

  • LeanBurn

Posted May 06, 2015 - 04:10 AM

#4

They help a lot on keeping debris and dust out of filter. I never oil them because I don't want them to plug up. On a dusty enduro I will swap in a clean pair at a gas stop. No power loss.



  • philamoto

Posted May 07, 2015 - 10:10 AM

#5

Rocky Mountain sells them. "PC Racing Flo Shroud Air Filters" $15.99 and the were one of the best things I did to 2014 450. I used to get tons of mud, sand and debris in my filter now very little. Don't oil them. They are very porous and I notice no difference when I pull them out while the bike is running. But I also drilled 5 or 6  .5" holes on the bottom of the plastic shroud. It seems the front intake area just sucks up everything. Buy them!



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  • grayracer513

Posted May 07, 2015 - 11:02 AM

#6

 It seems the front intake area just sucks up everything.

 

Maybe.  The '06 - '09 has the dirtiest air box I can remember looking at. 



  • Wiz636

Posted May 07, 2015 - 03:23 PM

#7

Maybe.  The '06 - '09 has the dirtiest air box I can remember looking at.


That's for sure! With the air intake being higher and forward I've noticed that my air filter stays MUCH cleaner on my '13 vs my '08.

  • flapwick

Posted May 07, 2015 - 08:27 PM

#8

030.JPG Is anything like this made for my 2014 YZ450f with the Cycra Powerflow shrouds?

 



  • LeanBurn

Posted May 09, 2015 - 05:28 AM

#9

The power flo's will fit. They are a square block foam that you stuff into the air inlet.

  • bigbird192

Posted May 09, 2015 - 12:22 PM

#10

I had more flame outs with them in. I did very lightly oil them. After a 3 hour desert race, they were barely even dirty and the regular air filter was as dirty as I would expect without the prefilters.

  • stonefort

Posted May 10, 2015 - 09:41 AM

#11

I had more flame outs with them in. I did very lightly oil them. After a 3 hour desert race, they were barely even dirty and the regular air filter was as dirty as I would expect without the prefilters.

 

Mine is the same way. I even tried taping up the small drain holes in the intake arms (no difference)

 

I am guessing we need a finer foam if we really want to get a substantial pre filter effect.







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