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Old 11-07-2016, 11:23 AM
  #32551  
acdii
 
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Storage oil from Napa. Its the stuff used in full sized engines when storing them for any length of time, spray it into the cylinders and leave it. https://www.napaonline.com/napa/en/p/MCN2632
Old 11-08-2016, 01:24 PM
  #32552  
Hobbsy
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The CH Ignition system for the 1.25 came yesterday, it includes a spark plug, I didn't expect that. Now I have to get busy and do some 1.25 running.
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Old 11-08-2016, 01:42 PM
  #32553  
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What did that cost you? How much does it add to the weight?
Old 11-08-2016, 02:09 PM
  #32554  
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135 bucks and here's the weight minus the switch. I left the spark plug off since it simply replaces the glow plug, the battery is a Hobbico 1,600.
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Old 11-08-2016, 02:30 PM
  #32555  
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Will be very interested in the difference in power compared to glow and run time. The more uptime I can get out of the Mustang the better. As soon as I take off I am worrying about staying up too long and dead sticking it.
Old 11-08-2016, 03:06 PM
  #32556  
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Guys what is the big hubbub ou the 125 i am looking at getting one. Just trying to get up to speed.
Old 11-08-2016, 03:48 PM
  #32557  
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Ask Fart , he has a intense dislike for them . They must be made from old Harley parts . I would like to know too cause I have a new unrun one . Cheers
Old 11-08-2016, 04:58 PM
  #32558  
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One rose up and bit him once, in the arse, while he was farting and ignited the methane singeing the hair off his legs. He couldnt ride his bike for a month.
Old 11-08-2016, 06:57 PM
  #32559  
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Originally Posted by acdii
One rose up and bit him once, in the arse, while he was farting and ignited the methane singeing the hair off his legs. He couldnt ride his bike for a month.

Why do I find that so possible?
Old 11-09-2016, 03:11 AM
  #32560  
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Originally Posted by the pope
Ask Fart , he has a intense dislike for them . They must be made from old Harley parts . I would like to know too cause I have a new unrun one . Cheers
Not an intense dislike mate but i did set myself on fire once while bench running a new saito,and the time my new 115 pulled itself off the test bench and flew around the shed while i was hiding behind the lawnmower,but i thought my private pm's to acdc would be kept quiet...

Captain shortcut the whole thing and buy a 115,some of these guys have 125's already so it's easy to feel sorry for them.If you were to compare a 115 with a 125 in dog terms,the 115 is a sleek greyhound with heaps of speed.The 125 never really gets going and is like one of those wooly yappy little furball ankle biters..did i hear someone shouting "lookout! incoming"
Old 11-09-2016, 03:55 AM
  #32561  
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CC, there is only hubbub from one person, (maybe two) who obviously never owned a 1.25, it is a fine engine.
Old 11-09-2016, 08:26 AM
  #32562  
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But the whole 115 vs.125 discussion is rather entertaining!
Old 11-09-2016, 09:49 AM
  #32563  
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Well OF, I can put the debate to rest, just send me one of those 115 and I will do a head to head comparison.
Old 11-09-2016, 10:47 AM
  #32564  
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The Bench mark prop for the 1.15 is a 15x6 at 8,800
The Bench mark prop for the 1.25 is a 16x6 at 9,000

There are posts on the Tachometer Readings Forum to back this up, a guy at RCG is reporting a 1.25 turning an APC 16x8 at 9,000. I dunno about that one.
Old 11-09-2016, 10:47 AM
  #32565  
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Well were do's the 100 fall into all of this. My mind is is about to pop. 115,125?
Old 11-09-2016, 12:09 PM
  #32566  
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The Saito spec site (not affiliated with Saito) lists the HP as follows:

115 = 2.1 HP
125 = 2.2 HP a .1 advantage

I own neither so I don't necessarily have a preference between the two.
Old 11-09-2016, 12:38 PM
  #32567  
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Well someone send me a good 115 and I will compare all three on the same plane.
Old 11-09-2016, 01:18 PM
  #32568  
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Dave- you should have pointed out that some 125s turn lower rpms and some rev higher. I've got about 4 gallons on my 125 that was one of the first batches and it's a slow turner.

Captain, I think it's like this. There's something special about the FA-56 and FA-82 that you can't quite say exactly what it is. There's something a bit un-Saito like with the 125 imo that is too elusive to describe. There's a lot to love, but there's the low revved engines that's bothersome. Breaking mine in made me think of sharing a phone booth with Hillary on election night. It ran rough and banged the piston up and down hard enough to abuse my deck and test stand. It was more like taming a wild animal than breaking in an engine. It wouldn't stay tuned at 2 gallons of fuel. It's smoothed out and is a nice engine now, but it wasn't always that way. It still takes extra attention to tune the low speed needle, but once set right it's a stump puller that puts a smile on my face. It's on a 90 sized pattern plane.
Old 11-09-2016, 02:24 PM
  #32569  
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Bary, I couldn't state that because I only owned one previous 1.25 and it was a 9,000 rpm engine with a Graupner 15x8, I am going to run the new 1.25a with a 16x6 Xoar tomorrow. I am still trying to work out an honest method to evaluate the fuel consumption with glow and then with CH Ignition. I'll probably have to try a couple of different timing settings, for example 30 and 32 btdc.

PS, I am receiving a .56 from Jim tomorrow. You may have seen it before.

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Old 11-11-2016, 03:16 AM
  #32570  
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Dave when you first get a new saito and bench mount it,fill the fuel tank up and prime it..exciting feeling eh? and when you flick it and it fires there's always that involuntary jump back before you get settled behind the prop and keep the revs down.When you watch the rockercovers they blur a tiny bit but are still easily seen at fully rich.The two 125's i ran in on the first tank shook that much more it was like watching that famous bodybuilder arnold what his name at his peak,looked like a condom stuffed with walnuts having a seizure.Once they are leaned out very smooth and flies a h9 taylorcraft very well.
Old 11-11-2016, 04:21 AM
  #32571  
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Yes sir that initial rich setting does make them rock and roll a tiny bit, my PSP test stand is mounted with B&B Vibra-Lock soft mount bushings that are actually very hard. This is the only engine that visibly shakes the PSP, a SuperTigre 4500 Diesel conversion, idling at 1,200 rpm. It's wearing a 22x10 prop
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Old 11-11-2016, 09:39 AM
  #32572  
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Jim kept track of the comments about the 125 better than you and I did. He also had 3 of them at one point.

Yes, I've seen that engine. Jim liked to sit and do touch & go's for hours. You couldn't hear that 56 at all until it was on the ground. I asked him what it was idling at and he pretended to not know. I'm guessing he had it tuned so well it was idling sub-1700's consistently. You certainly are getting a sweetheart engine.

Dave, you said they vibrate a little bit when rich. Mine did rich or lean. Some guys talk about slapping new Saito's on the plane and going flying. This 125 of mine would have torn a model to pieces.

Last edited by blw; 11-11-2016 at 09:42 AM.
Old 11-11-2016, 11:44 AM
  #32573  
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Oh I consider myself lucky then as mine runs smooth, when it starts....

I did notice when I go to start it that I get a popping from the plane a few times then its smooth once its running.
Old 11-15-2016, 05:40 PM
  #32574  
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I am not sure if this old news already but look what is coming soon .http://www.horizonhobby.com/fa-62b-a...3A-bx-saie062b
Old 11-16-2016, 05:58 AM
  #32575  
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Originally Posted by p3arljam
I am not sure if this old news already but look what is coming soon .http://www.horizonhobby.com/fa-62b-a...3A-bx-saie062b
Here's the pic!





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