Cowl baffling

[John Ferrell]

Don't gasoline engines use a lot lower oil mix ratio? I think an awfull lot of heat goes out with the exhaust oil. 

John Ferrell    
http://DixieNC.US

  ----- Original Message ----- 
  From: Ed Alt 
  To: discussion at nsrca.org 
  Sent: Saturday, March 20, 2004 9:53 PM
  Subject: Cowl baffling


  Just wondering what's commonly done to direct proper airflow in pattern birds with 2C engines.  I'm used to creating very close fitting baffling to direct air right at the cylinders of large 2 cycle gasoline fed engines and keeping the baffling so close to the fins as to force it through them.  Even the space over the heads is baffled to force air through the head fins.  After that, I make the area of the air exhaust opening at least 3X that of the total intake area.  

  So far, in studying various setups of pattern ships, I haven't seen anyone going to this kind of trouble.  Not wishing to go to any uneccesary work, but is there a reason why no one adds baffling for 2C glow engines?  I've got a Focus II with a Webra 1.60 if that helps with the answer.

  Thanks
  Ed
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