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Old 01-29-2020, 10:11 AM
  #44951  
Hyjinx
 
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Originally Posted by Hobbsy
I got a chance to run the 60 twin a little while ago with the Graupner prop show above. In the picture it's turning 6,000.

Saito 60 twin boxer
Prop Graupner three blade 11 x 7
Fuel Wildcat 10% with 18% full synthetic
Exhaust adapted twin FA 30 mufflers
Plugs Glow Devil for Saito/ Enya
Max rpm after 30 minutes run time a solid 7,950
Idle, not set yet, 30 degree air too cold for hands
Beautiful purr and smooth as silk.
Left cylinder smokes more than the right one, an inquiring mind will investigate.


Running at 6,000 rpm.
Will it preform identical without the muffler back pressure.?
Start, run , and produce similar rpm numbers?
Very curious.
Old 01-29-2020, 10:16 AM
  #44952  
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Back pressure is not needed or desired with fourstrokes.
Old 01-29-2020, 10:28 AM
  #44953  
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Originally Posted by Jesse Open
I use skis. Tail draggers only!


Still have a nice 1/5 scale Pica Waco that I would sell reasonably. Could probably come up with a Saito FA-150 for it , also at a very reasonable price.
I fly skis on my cub and super sport currently. My hog is one of my float planes . They fly so nice with floats I can't resist a snow day😀
What is a reasonable price for the Waco without the powerplant? Can usually find a good for home one of those. This is a biplane summer upcoming. A 1/4 Waco was on the list. The 1/5 pica is a nice bird.
Have a nice little Saito 5 cylinder that works well on the 1/5 scale bipes. Without the cowl lol
Bigger issue with me is space. Opened up a few slots with better organization. Enough for one more anyway if affordable.
Hehe
The Astro hog would have been wearing skis and a 1.0 satio. My float hog is happy with a 91 OS.
Old 01-29-2020, 10:42 AM
  #44954  
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Originally Posted by Glowgeek
Back pressure is not needed or desired with fourstrokes.
Yep. That is my general experience also.
My FA90 twin is a noteable exception to that!
Old 01-29-2020, 10:43 AM
  #44955  
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I just read a post from Douglas in his 3D printing thread over on RCG It looks like Jim will have a new pilot soon. Douglas has started the painting!



Old 01-29-2020, 12:53 PM
  #44956  
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Default Without engine



$100

Old 01-29-2020, 12:59 PM
  #44957  
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That is an unbelievable price for such a great looking airplane! One of you other guys needs to snap this one up while you can!

Did you receive my last email on the Aeromaster?

Mike

Last edited by FlyerInOKC; 01-29-2020 at 01:01 PM.
Old 01-29-2020, 01:15 PM
  #44958  
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Originally Posted by Jesse Open


$100
Yes thats very reasonable. When can I cash you out and up can I pick it up Sir?
Happy to pay pal you right now if you would like.
Or cash at pick up?
Old 01-29-2020, 01:26 PM
  #44959  
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Good choice Hyjinx you are going to love that bird!
Old 01-29-2020, 02:01 PM
  #44960  
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PM me and I will send PayPal address.
Old 01-29-2020, 02:52 PM
  #44961  
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Considering that the mufflers are designed for the little 30 and I used two on a 60 that is turning sub 8,000 and the 30's turn 10,500 or better, I don't think back pressure is a concern. I plan to run twin Turbo Headers, (40 size) and see how that works.
Old 01-29-2020, 03:20 PM
  #44962  
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Originally Posted by FlyerInOKC
Good choice Hyjinx you are going to love that bird!
Yes Sir. I sort of loosely follow the thread I love all the information you guys put out I'm looking forward to meeting mr. Open
That little beauty be flying all over Heritage Park Adrian Michigan this year!
If all goes well I will be flying four separate planes with four separate radial engines this seasin. it's going to be a great summer Lord willing.
Saito, OS, U.M.S and Moki
Whoo hoo!


Old 01-29-2020, 06:09 PM
  #44963  
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Originally Posted by Jesse Open
PM me and I will send PayPal address.
Hey Jesse jJust checking in. I pm'd' you earlier. Wondering if you got it. Had some issues with private messaging on the site last time I used it.
Old 01-29-2020, 09:07 PM
  #44964  
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Originally Posted by FlyerInOKC
I just read a post from Douglas in his 3D printing thread over on RCG It looks like Jim will have a new pilot soon. Douglas has started the painting!

LOL that's great ! I love it, thanks Douglas and Mike !!

Jim

Old 01-30-2020, 05:52 AM
  #44965  
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No need to thank me Jim I'm not doing anything but show off Douglas' work. Maybe you and I can chip in and buy him a roll of filament? I think there is a vendor that will let you buy it in the USA and they ship it out of the French warehouse.
Old 01-30-2020, 10:31 AM
  #44966  
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no problem, you do that and PM me and tell me what I owe and I will send it to you

Jim
Old 01-30-2020, 01:18 PM
  #44967  
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Originally Posted by the Wasp
no problem, you do that and PM me and tell me what I owe and I will send it to you

Jim
I'll send you a PM on the subject.

Mike
Old 01-30-2020, 08:44 PM
  #44968  
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Iím finally getting around to getting my Saito 72 out back together so I can move onto rebuilding the 90T I picked up.

The question I have is the original main bearing has a metal shield on both sides. I have a replacement Boca bearing metal shield and rubber shielded bearings. Iím assuming itís OK to leave the shields on since the original had it or should I remove them?
Old 01-30-2020, 10:30 PM
  #44969  
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I think this car would go faster if it had a Saito in it and a prop on it

hey Pete, and it's upside down too



Jim

Last edited by the Wasp; 01-30-2020 at 10:39 PM.
Old 01-30-2020, 10:37 PM
  #44970  
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Originally Posted by Quikturn
Iím finally getting around to getting my Saito 72 out back together so I can move onto rebuilding the 90T I picked up.

The question I have is the original main bearing has a metal shield on both sides. I have a replacement Boca bearing metal shield and rubber shielded bearings. Iím assuming itís OK to leave the shields on since the original had it or should I remove them?
remove both shields on the rear bearing and remove the grease, oil has to get to the front to oil the cam.
I have never seen or heard of a rear bearing having a shield in any RC glow engine. there may be one out there but I have not seen it.

Jim

Old 01-31-2020, 02:20 AM
  #44971  
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I have seen shielded rear bearings direct from the factory. Shielded bearings do pass oil readily.
Old 01-31-2020, 03:32 AM
  #44972  
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I have seen rear factory bearings with shields as well. If I'm doing a bearing swap I remove the rear bearing shields, no need to restrict oil from migrating to the cam area in any way.
Old 01-31-2020, 05:37 AM
  #44973  
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Originally Posted by Glowgeek
I have seen rear factory bearings with shields as well. If I'm doing a bearing swap I remove the rear bearing shields, no need to restrict oil from migrating to the cam area in any way.
I also have seen several configurations of with and without, and partial shields. Never positive it was factory as I have never torn down a motor I bought new though.
Common sense dictates removal for obvious lubricant passage reasons.
Be interesting to know the answer to this long debated subject from Saito MFG.
Old 01-31-2020, 05:57 AM
  #44974  
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Originally Posted by the Wasp
I think this car would go faster if it had a Saito in it and a prop on it

hey Pete, and it's upside down too

https://youtu.be/5tjRukpQcaE


Jim
This car/rocket will give the driver/pilot one heck of a ride if he/she survives it!
Old 01-31-2020, 08:09 AM
  #44975  
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Originally Posted by the Wasp
remove both shields on the rear bearing and remove the grease, oil has to get to the front to oil the cam.
I have never seen or heard of a rear bearing having a shield in any RC glow engine. there may be one out there but I have not seen it.

Jim
Originally Posted by Hyjinx
I also have seen several configurations of with and without, and partial shields. Never positive it was factory as I have never torn down a motor I bought new though.
Common sense dictates removal for obvious lubricant passage reasons.
Be interesting to know the answer to this long debated subject from Saito MFG.
I have torn down many, virgin from the factory, Saito engines. Back then I worked on many of the engines that we sold there. Often I personally sold the engines and knew the owners well.




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