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Old 08-20-2017, 06:41 AM
  #34476  
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Hey Hobsy, I looked for your stats on the FG-11 and can't find them. What prop were you running? I want a little more vertical and wonder if a different prop that what I have will work. Think I have a 12 x 6 on it now.
Old 08-20-2017, 12:26 PM
  #34477  
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FG 11 stuff.'

Saito FG 11
Prop===Xoar 13x6
Fuel===Gulf Gasoline, 89 octane ethanol free/Mercury Marine two stroke full synthetic compatible with water or air cooling@ 20 to 1.
Stock FG 11 Ignition=RCXL
95 minutes total run time, I ran the tank 1" lower than the first run, there was no difference in the running.

Max rpm stock muffler== 9,155
Max rpm Turbo Header==9,293
RPM with both=2,150

High Speed needle is sensitive one click lean with stock muffler =9,100
One click lean with TH==9,240

The TH has that same deep throb as the glow engines.

That's it, it's a keeper.
Old 08-20-2017, 01:49 PM
  #34478  
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Thanks. Does a 56 need the pressure tap for the tank, or will it run OK without pressurizing the tank? The muffler on the FG-11 will fit the FA56, and since I am missing one, I can get a TH for the FG and use the FG one on the FA. I really would like to not tap the muffler if I don't have to.
Old 08-20-2017, 11:17 PM
  #34479  
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Acdc don't be scared to try different props they make a big difference sometimes,depending on how you like to fly.

Years ago i had a semi private argument with dave about whether you had to have tank pressure or not.My argument was simple,since the pressure nipple on the muffler or straight pipe is located near the end of the exhaust then surely atmospheric pressure was dominant and exhaust gas pressure was minimal.I wanted to run my own custom shotgun style pipes on all my saito's.With no exhaust pressure line hooked up,and test running an 82 in my decathlon on the ground i needed to open the main needle slightly to maintain peak rpm,which was steady.Now if you fly round gently that will probably work,but,if you like flying aerobatics the engine won't like it because fuel feed varies.I tried going a lot fatter on the main needle which nearly cured it.In the end i had to admit that that tractor loving so and so was right,and i'm glad.Had many enjoyable flying hours since then.

ps good luck with the bipe capt
Old 08-21-2017, 02:18 AM
  #34480  
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Originally Posted by acdii
Thanks. Does a 56 need the pressure tap for the tank, or will it run OK without pressurizing the tank? The muffler on the FG-11 will fit the FA56, and since I am missing one, I can get a TH for the FG and use the FG one on the FA. I really would like to not tap the muffler if I don't have to.
AC, I sent you a pm, Thanks, Dave
Old 08-21-2017, 04:05 AM
  #34481  
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Well the 125 is in and I only had a MS prop on hand. But it should be good enough to test fly. I bought this plane from a dude that just had it hanging in his shop. (What crime) No radio or control's had to set up the hole thing. Anyway i know it should be a good flyer the hog just is.
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Old 08-21-2017, 06:38 AM
  #34482  
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Nice ship, it should fly like it's on rails.

We've come a long way in more than just engines.
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Old 08-21-2017, 06:43 AM
  #34483  
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Originally Posted by Old Fart
Acdc don't be scared to try different props they make a big difference sometimes,depending on how you like to fly.

Years ago i had a semi private argument with dave about whether you had to have tank pressure or not.My argument was simple,since the pressure nipple on the muffler or straight pipe is located near the end of the exhaust then surely atmospheric pressure was dominant and exhaust gas pressure was minimal.I wanted to run my own custom shotgun style pipes on all my saito's.With no exhaust pressure line hooked up,and test running an 82 in my decathlon on the ground i needed to open the main needle slightly to maintain peak rpm,which was steady.Now if you fly round gently that will probably work,but,if you like flying aerobatics the engine won't like it because fuel feed varies.I tried going a lot fatter on the main needle which nearly cured it.In the end i had to admit that that tractor loving so and so was right,and i'm glad.Had many enjoyable flying hours since then.

ps good luck with the bipe capt
Pete- W8YE and I flew my Saito FA-72 without vent pressure and it did okay. I had to get used to it but it can be done. It was on a pattern plane and I don't remember any restrictions to flying. (looks like you won your bet)
Old 08-21-2017, 06:58 AM
  #34484  
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I've been a born again "GearHead" since I could walk, the first engine I dismantled was a Clinton two stroke lawn mower engine. I got,it back together and it ran.

Being labeled a Tractor Lovin SO and So is good. I use pressure on everything, even engines that came without it but I spect most would run without it. I cured a rich midrange on an Enya .46 MKII by using tank pressure. When the HS needle was set for a good top end the the mid range was rich when the fuel draw improved. When using pressure I could set the HS needle a quarter turn leaner cleaning up the mid range. Honest
.
Old 08-21-2017, 08:28 AM
  #34485  
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I haven't been all those things, or don't claim to be. I'm trying to remember how the engine ran. It was Jim's suggestion to isolate whatever was causing the 72 to go lean. We had not considered the backplate yet. We did learn something very, very valuable. The insides of fuel tubing gets soft and collapses. That bug later bit when Jim couldn't draw fuel from his tank and found bad tubing while borrowing a length of mine. I always carry a good bit in my tool box. Sure enough, same thing happened to me about a year later. That's why I always suggest being suspicious of all fuel tubing on a plane.
Old 08-21-2017, 09:05 AM
  #34486  
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Originally Posted by Hobbsy
Nice ship, it should fly like it's on rails.

We've come a long way in more than just engines.
yeah in the short time that I have been in the hobby I have seen wideband a.m. go to narrowband FM to 2.4. four or six channel receivers to 10 channels and distribution boards. 4.8 V batteries to life batteries. One Radio per plane to unlimited planes and 28 channels. I am glad I didn't half to deal with escapements and one channel radios or so-called buzz boxes.
I would have to say we have made progress or have we?
Old 08-21-2017, 12:46 PM
  #34487  
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I certainly think we have progressed, I even use full synthetic fuel and I used to be a castor only guy.

The .56 Saito I got from Jim is a real jewel I shined it up a little and had a new set of Boca Bearings in a drawer and there it sits. It will go on a Big Stick 40.
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Old 08-21-2017, 03:01 PM
  #34488  
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My wife alerted me to the time this morning and I had to rush up and close the message as I was really late going somewhere.

I was talking about was Jim discovered a long length of fuel tubing in his fuel jug had degraded and was collapsing when trying to draw fuel. Then, the same thing happened a month or so later to me but we had learned about this when running the 72 without the exhaust vent pressure line.

I know I got the engine tuned well enough to fly fairly well. I think increasing the fuel tank size would help a lot so that you always had a heavy load of fuel pressing into the carb. Short lengths of fuel line would be beneficial. Fuel tank height would probably need to be raised.
Old 08-21-2017, 03:23 PM
  #34489  
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Well my two cents
i run the center of the tank at the center of carb and the shotest lines i can get away with. Thats just what i do on glow engines.
The other thing i am not a big fan of more the two line systems.

As far as fuel goes i have been running synthetic fuel since I got into the hobby that's all because my biggest mentor ran red max fuel and thats hard to get a hold of anymore for me. There is just no one running glow around here and if they do its in one plane and they might use a gallon in a year. Because red max requires a minimum order.
Old 08-21-2017, 03:50 PM
  #34490  
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I have been using 3 line tanks from the start, just makes it easier to fill. I think my only 2 line is the Somethin Extra with the Saito 72 on it. I have a fueling valve. On second thought, I think both Cubs have a fueler valves too, which makes them 2 line tanks as well. I think my 3 line tanks are the gassers, and the P-51 with the 125.

well damn now you guys got me wondering which is what now with my setups.
Old 08-21-2017, 05:03 PM
  #34491  
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We've had bad rolls of fuel line over here too,and it was a well known brand.I got caught and did'nt discover the answer to my tuning problem problem until it happened in my re fueling tin as stated above.It was a real eyeopener.I wonder if popo has completed the moderator training paperwork and sent it back? i'm sure he'd have a good look at this pic of a saito fa30sc with it's much different carb and exhaust,plus internals i suppose,if it really does rev to 22,000rpm...he might even comment on it.

Capt i'll bet you are looking forward to the test flight,are you using any castor? i like using using mas props for a test flight as they can take quite a hammering if it noses over slightly on the takeoff run or you bounce it a bit hard on the first landing.
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Old 08-21-2017, 05:58 PM
  #34492  
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Now Now Fart , I checked that pic out when u 1st posted it . So there ! I should do the moderator training course as it might stop those pesky inbox messages . Thanks to your pit girl pics and disgusting sense of humor and my lack of self control I seem to get into trouble a bit , but not too much . They let things slide more nowadays . You have worn them down . I can imagine when they see Farts posts they lie in the corner in a fetal position rocking back and forth .
Old 08-21-2017, 06:02 PM
  #34493  
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This club was much more fun until others joined in and had to make is serious again. booo

I mean whats more fum than Beer, Booze, Bikes, Boobs and Broads and an occasional Saito remark? Oh, and Guns
Old 08-21-2017, 06:31 PM
  #34494  
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Did u say guns ?
Old 08-21-2017, 06:39 PM
  #34495  
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Originally Posted by the pope
Did u say guns ?
Of course I did, I know how they get under your skin! LOL
Old 08-21-2017, 07:07 PM
  #34496  
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not anymore since I got one of these
https://www.army.gov.au/our-work/equ...m1-abrams-tank
Old 08-21-2017, 07:36 PM
  #34497  
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Looks like a pee shooter to me. But i am not going to start comparing gun sizes.
So does anyone know if there is a difference between a saito 45,50,and 56 cam?
Old 08-21-2017, 08:21 PM
  #34498  
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does anyone know if there is a difference between a saito 45,50,and 56 cam?
no, but, LOL you can find out at Horizon, they have,,,, part numbers LOL

seriously, Horizon has a box (upper right) on the Saito page you can click for discontinued engines parts

https://www.horizonhobby.com/

Jim

Last edited by the Wasp; 08-21-2017 at 08:27 PM. Reason: I edited because I knew if I didn't every one would pick on me and point at me
Old 08-22-2017, 03:11 AM
  #34499  
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Originally Posted by the Wasp
no, but, LOL you can find out at Horizon, they have,,,, part numbers LOL

seriously, Horizon has a box (upper right) on the Saito page you can click for discontinued engines parts

https://www.horizonhobby.com/

Jim
Interesting engine, the Saito 30S-C. I looked for the Saito code D, E and II for,the 45, 50 and 56 cams, no find.
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Old 08-22-2017, 03:18 AM
  #34500  
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Originally Posted by the Wasp
no, but, LOL you can find out at Horizon, they have,,,, part numbers LOL

seriously, Horizon has a box (upper right) on the Saito page you can click for discontinued engines parts

https://www.horizonhobby.com/

Jim
Jim, I couldn't find any Saito links there but may have missed it, ,maybe you can point me in the right direction, Thanks.

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