Tuned Pipe.

[Mike Hester]

I've seen it done on numerous planes using that set-up. 

It works, but it lacks a little power and isn't quite as smooth as a properly tuned 2 stroke pipe. But it does work fine. If you later on convert over to the 2 stroke pipe, at that time you'll notice a difference. until then you'll be amazed at how well it actually does run on that set up. 

It's just not ideal, and a particularly fussy masters/FAI pilot might not find it to thier liking. 

But nothing beats a 2C140M80 ES pipe for the OS. That's simply the best pipe I've run across for that engine.

-Mike

  ----- Original Message ----- 
  From: Fausto Henriques 
  To: discussion at nsrca.org 
  Sent: Tuesday, May 11, 2004 11:13 AM
  Subject: Tuned Pipe.


  Hi,
  I'd like to know if anyone has tried or is currently using the following set-up with good results. The set-up would be a OS 140 RX, with original OS header coupled to a YS 4 stroke tuned pipe (HATORI #698 FAI Pipe for 120~140-4C). I 've read somewhere on the net that this set up would run fine, although I would not get the power increase as from the 2C pipe. Any comments will be appreciated.
  Regards,
  Fausto
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