Air filters

[Richard Strickland]

Time frame?
                  RS
  ----- Original Message ----- 
  From: Lance Van Nostrand 
  To: discussion at nsrca.org 
  Sent: Saturday, August 14, 2004 11:44 AM
  Subject: Re: Air filters


  Maybe the guys that make the filters can comment on the carb size they work on. All the Mintors have ample surface area on the carb inlet as their carbs are a bit taller than others. The Mintors out there now have a slightly fluted inlet that is .54 in at the bottom and .6 in at the actual inlet.  If one of the rubber filters fits over the inlet, the fluting will help hold it on.  Mintor is coming out with an engine update, the 170-1 that has some improvements to the carb.  this carb has a constant .64 O.D. inlet but has a groove 1/8" below the inlet for a tie wrap.  It appears they are planning for a carb filter in the future, or to assist the installation of a currently available one.

  --Lance

    ----- Original Message ----- 
    From: Richard Lindberg 
    To: discussion at nsrca.org 
    Sent: Thursday, August 12, 2004 11:01 AM
    Subject: Re: Air filters


    Jeff Carrish, at www.pattern-craft.com, makes a filter that fits the OS 140s; Central Hobbies sells filters for most of the YS 4-strokes.  I don't know about filters for Webras  or Mintors--anyone else?

    Richard

      ----- Original Message ----- 
      From: Richard Strickland 
      To: NSRCA 
      Sent: Thursday, August 12, 2004 9:37 AM
      Subject: Air filters


      Anyone,

      When we first started trying to quiet things down, one of the areas we looked at was intake noise.  We used to use a stretch on filter housing with small filter disks that helped the noise problems with the added benefit of keeping crap out of the engine--gee, what a concept.  Are there any such animals available now?  We fly off an old asphalt runway and there is the possibility something significant was sucked into a brand new 170 and destroyed the piston, sleeve, ring and bearing.  First time for everything, I guess.  The 60 sized ones did not seem to affect performance.

      Thanks,

      Richard
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