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Author Topic: I ain't sure about the posting...  (Read 2197 times)

Offline Bootlegger

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I ain't sure about the posting...
« on: May 23, 2017, 12:47:20 PM »

 Got a Tower 40, .277 venture, T/Bolt long reach idle bar plug, 11x4 A P C prop2.5 Nitro 11 Castor, 11 Synthetic and the tach reads between 9100-92.5, 7and on 3.5 ounces of fuel it is running 6:45- 7:06, one more thing it is a Randy Smith P A needle assy...

  This sure don't seem normal for this engine...

  Suggestions???
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Gil Causey
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Offline Bootlegger

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Re: I ain't sure about the posting...
« Reply #1 on: May 23, 2017, 02:03:59 PM »

  Yes, but that much longer?  Oh, it has a tongue muffler on it also..
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Offline Dennis Moritz

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I ain't sure about the posting...
« Reply #2 on: May 23, 2017, 02:31:10 PM »
This could be a fine run. How does it perform in your model? You are running the equivalent of a small Venturi. I believe a RANDY Needle is same diameter as a Supertigre. Fatter than an OS. I usually run 10 percent nitro oil like yours. Less mileage a wider tune needle. We us a 10.5x4.5 apc. Your prop sounds similar. If you like the run quality your flight time sounds adequate. I run these engines a lot. I prefer a fat 2 stroke that breaks. My best running engines need nearly 5 ounces to do the pattern.


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Offline RandySmith

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Re: I ain't sure about the posting...
« Reply #3 on: May 23, 2017, 02:36:23 PM »
Got a Tower 40, .277 venture, T/Bolt long reach idle bar plug, 11x4 A P C prop2.5 Nitro 11 Castor, 11 Synthetic and the tach reads between 9100-92.5, 7and on 3.5 ounces of fuel it is running 6:45- 7:06, one more thing it is a Randy Smith P A needle assy...

  This sure don't seem normal for this engine...

  Suggestions???

Use  10%  nitro  Cyclone  11 x 4.5  or  10.5 x 4/5  apc  prop , To Flite  11 x 4 N  things will work out better
let us know

Randy

Offline Brett Buck

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Re: I ain't sure about the posting...
« Reply #4 on: May 23, 2017, 09:04:54 PM »
Got a Tower 40, .277 venture, T/Bolt long reach idle bar plug, 11x4 A P C prop2.5 Nitro 11 Castor, 11 Synthetic and the tach reads between 9100-92.5, 7and on 3.5 ounces of fuel it is running 6:45- 7:06, one more thing it is a Randy Smith P A needle assy...

  This sure don't seem normal for this engine...

   If it runs OK, I wouldn't worry too much about how much fuel it uses.

    If it's not OK, and particularly if it gets too lean/sags during maneuvers, might want to check out how many holes are open in the tongue muffler. I would start with 16-20 1/8" holes and then if that gets too wild, thread some of them for 4-40s and block them up.

     Brett

Offline Bootlegger

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Re: I ain't sure about the posting...
« Reply #5 on: May 24, 2017, 05:52:20 AM »

 Guy's I sure do appreciate the suggestions/advice, will try to remember to keep everyone posted.. y1
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Gil Causey
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Offline Steve Helmick

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Re: I ain't sure about the posting...
« Reply #6 on: May 24, 2017, 11:45:14 AM »
I keep hoping that Gil will finally write a useful subject line, but I see that's just not happening. Seems like he's not sure what the objectives of the subject line are? No offense; just had to say it. Pretty Please?   D>K Steve
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Fredvon4

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Re: I ain't sure about the posting...
« Reply #7 on: May 24, 2017, 12:22:05 PM »
Steve... Gil is not the only one....

Jest sayin

I got over it a long time ago and now just read every new post every day... occasional confused by the subject line....mostly my fault for NOT seeing the sub forum
"A good scare teaches more than good advice"

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Offline Fredvon4

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Re: I ain't sure about the posting...
« Reply #8 on: May 24, 2017, 12:46:14 PM »
Gil brother...not picky... thread topic and original post I am still not sure what you are asking

BUT after reading other's responses I just assumed I am dumb and should know if or if not 6.45 to 7.06 is a good stunt pattern time for a Brodak 40 on an unknown air plane

Not trying to bust your chops Gil...but I AM dense and need help some days to understand what I am reading and trying to learn from........ I am ok with letting YOU ask the question I am too timid to

Grin

Really Gil Grin

"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Steve Helmick

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Re: I ain't sure about the posting...
« Reply #9 on: May 24, 2017, 05:50:55 PM »
  Some people are just PICKY, PICKY, PICKY...Right Steve...

I see a meaningless subject line as being inconsiderate. Why do you continue to be so?   H^^ Steve
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.


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