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General control line discussion => Open Forum => Topic started by: Bootlegger on February 10, 2011, 09:58:01 AM

Title: ?? Not Sure???
Post by: Bootlegger on February 10, 2011, 09:58:01 AM
   Where this should go, I'm runnung a RO Jett 40 Rear Exhaust with muffler and am looking for some suggestions.
  Prop, fuel (oil % and nitro%) and anything else that might help...Will also post in the engine section..
               Thanks a lot...
Title: Re: ?? Not Sure???
Post by: Bill Little on February 10, 2011, 10:58:44 AM
   Where this should go, I'm runnung a RO Jett 40 Rear Exhaust with muffler and am looking for some suggestions.
  Prop, fuel (oil % and nitro%) and anything else that might help...Will also post in the engine section..
               Thanks a lot...

Hi Gil,

Well my first suggestion is to set it up just like it was running a pipe.  Been told to do that with my PA's that I plan to use a can muffler on, so it seems it's all the same as far as set up. 

Then go from there.

Big Bear
Title: Re: ?? Not Sure???
Post by: Jim Pollock on February 10, 2011, 11:24:44 AM
Maybe just a tad more pitch on the prop non-piped.  I think the RPM's are just a bit less, maybe +.3 pitch or something like that?

Glad to be back on board here after too long an absence!

Jim Pollock   H^^
Title: Re: ?? Not Sure???
Post by: Zuriel Armstrong on February 10, 2011, 12:24:51 PM
Howdy Gil,

I'm running mine with rear exhaust muffler on Lou's Brew 18% all synthetic with 1 oz of Randy's Aero One.  Mine is on Gieseki Nobler @44 ozs.  5 oz uniflo-no pressure.  Thunder Tiger 11x4.5 prop @9200rpm at release.  I am running a strong 4 cycle and love the run.  This engine DOES NOT LIKE CASTOR!!!  Ask me how I know HB~>  I really like mine and it is now a flip and fly motor.
Title: Re: ?? Not Sure???
Post by: Bootlegger on February 10, 2011, 01:32:35 PM
   Guy's. sure do appreciate the answers, Z man are you running 10% nitro?
  Sure do 'ppreciate the help, guy's...Thanks again y1
Title: Re: ?? Not Sure???
Post by: Zuriel Armstrong on February 10, 2011, 02:39:05 PM
Correct.  10%.  I could probably run less, just haven't ever tried.  I used pieces of stockings over the venturi to get the desired break.  Also, I made a spigot type venturi that seemed to smooth things out alot too.
Title: Re: ?? Not Sure???
Post by: Bootlegger on February 10, 2011, 03:55:31 PM
      Z, I sent ya' a p/m...
Title: Re: ?? Not Sure???
Post by: Howard Rush on February 10, 2011, 04:01:42 PM
I haven't run them with mufflers, but the 18% synthetic, 10% nitro works fine with pipes, as do the socks and spigots.
Title: Re: ?? Not Sure???
Post by: Bootlegger on February 11, 2011, 05:22:42 AM
 #^   Howard, you are messing with this old man's mind.!!  What is a sock? (Hope that I'm not setting myself up)???
  #^
Title: Re: ?? Not Sure???
Post by: Bootlegger on February 11, 2011, 08:02:54 AM
   Howard I sent ya' a P/M...
Title: Re: ?? Not Sure???
Post by: Howard Rush on February 11, 2011, 04:40:35 PM
#^   Howard, you are messing with this old man's mind.!!  What is a sock? (Hope that I'm not setting myself up)???
  #^

Superstition has it that if you put a piece of women's stocking over the end of the venturi, your RO-Jett will run better.  I do it because people with good-running RO-Jetts do it, but having to have women's undergarments in my toolbox is another reason to go electric. 
Title: Re: ?? Not Sure???
Post by: Howard Rush on February 11, 2011, 04:43:00 PM
Speaking of the 8th Air Force, my WW2-pilot neighbor just gave me a big bottle of Irish liqueur for helping him change his tire.  A great generation indeed.
Title: Re: ?? Not Sure???
Post by: PJ Rowland on February 11, 2011, 09:44:34 PM
Howard - Dont add that to the Fuel - despite what people say it wont help the engine perform better - AND if you have ladies underwear over the engine your just asking for trouble..  n1
Title: Re: ?? Not Sure???
Post by: Zuriel Armstrong on February 12, 2011, 06:51:22 AM
Gil,

Our local Victoria's Secret has a RO-Jett section with a variety of styles.  Just go to your local store and ask >:D

Title: Re: ?? Not Sure???
Post by: Bootlegger on February 12, 2011, 07:14:29 AM
       #^ #^   Wow, I LIKE the way this is headed!!  Keep goin'..!!! #^
Title: Re: ?? Not Sure???
Post by: Bill Little on February 12, 2011, 09:07:27 AM
       #^ #^   Wow, I LIKE the way this is headed!!  Keep goin'..!!! #^

Hi Gil,

I ain't sure about the "underwear" part, but bits of pantyhose held on the venturi by an "O" ring makes a great air filter/restrictor!  More layers gives the effect of smaller venturi size.

Big Bear
Title: Re: ?? Not Sure???
Post by: W.D. Roland on February 12, 2011, 09:16:26 AM
Howard,
You should know by now what belongs in women's underwear!
If not then your assignment is to discover! LL~

By the way, the silk stuff is finer!


David
Title: Re: ?? Not Sure???
Post by: minnesotamodeler on February 12, 2011, 03:36:51 PM
Superstition has it that if you put a piece of women's stocking over the end of the venturi, your RO-Jett will run better.  I do it because people with good-running RO-Jetts do it, but having to have women's undergarments in my toolbox is another reason to go electric. 

Some would consider that a plus.