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Welcome to Club SAITO !

Old 06-18-2012, 03:23 AM
  #22201  
smkrcflyer
 
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Default RE: Welcome to Club SAITO !

Cougar429
Looking at the Saito engine code "LL" is the FA-90T not the 120. There are 3 120's.

L FA-120
M FA-120 Special (H)
N FA-120SDP (Dual plug/pump)

http://www.horizonhobby.com/article/...th-alpha-codes
Old 06-18-2012, 03:31 AM
  #22202  
Hobbsy
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Default RE: Welcome to Club SAITO !

LOP, reducing the throttle to the cut off position will reduce the flooding tendency during filling.
Old 06-18-2012, 03:33 AM
  #22203  
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Default RE: Welcome to Club SAITO !

Please, what is the code for the FA 120 ABC? Thanks.
Old 06-18-2012, 03:53 AM
  #22204  
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Default RE: Welcome to Club SAITO !

Richard, here is a chart some of us Saito guys should hang on to. I couldn't come with it on the new Horizon site but a general internet search brought it right up.

http://www.horizonhobby.com/article/...th-alpha-codes

PS, have you played with that big twin yet? Thanks, Dave
Old 06-18-2012, 05:49 AM
  #22205  
Cougar429
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Default RE: Welcome to Club SAITO !

DOH! Another Homer. I read the wrong bloody side on the listing.

However, the rest of the info is correct.
Old 06-18-2012, 06:01 AM
  #22206  
retransit
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Default RE: Welcome to Club SAITO !

If the tank is properly vented, it will not force fuel into the carb. Now, if you only have two lines coming out of the tank, one for pressure (muffler) and one for the carb, yes, it will flood because the tank will pressurize as you fill it through the muffler line. You can use the carb line to fill, if accessible, and the muffler line becomes the vent if it is plumbed to the top forward part of the tank. I assumed that you had a three line system, whereas the tank has a fill line, pressure line and a carb line. The fill line must be plugged after filling so that the muffler will work as intended.

Bob
Old 06-18-2012, 06:10 AM
  #22207  
mike early
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Default RE: Welcome to Club SAITO !

I have successfully stuffed a Saito 56 into a Sundowner 36. What do you boys think of an 11x9 prop with 15% Nitro? Getting ready to order some props...any other prop suggestions for that engine?
Old 06-18-2012, 06:22 AM
  #22208  
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Default RE: Welcome to Club SAITO !

I'm looking at the FA 120 on rcbearings web site. Should I get the 16003 Stainless for the rear and the 6000 sealed for the front?
Old 06-18-2012, 07:15 AM
  #22209  
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http://www.bocabearings.com/bearing-...ito-fa120s-120

These are what I'd get.
Old 06-18-2012, 07:24 AM
  #22210  
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Default RE: Welcome to Club SAITO !

Hobbsy
Thanks I will get those.
Old 06-18-2012, 10:07 AM
  #22211  
lopflyers
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Default RE: Welcome to Club SAITO !

I have three lines, one to fill, one to the carburetor and one to the muffler. I'm going to try the pinching the carburetor line method.
Thx much guys, as always Club Saito delivers exceptional advise[8D]
Old 06-18-2012, 10:10 AM
  #22212  
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Default RE: Welcome to Club SAITO !

While on the subject of bearings I was wondering? Are the Boca bearings any better than the Saito stock bearings. I looked at the Horizon site and could not find any info about their bearings. The Boca bearings I am comparing to are the ENK-030STwhich are stainless. The price is about the same as the Saito OEM bearings.
Old 06-18-2012, 10:15 AM
  #22213  
orthobird
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Default RE: Welcome to Club SAITO !

You are going to love that plane. Very very fast
Tracks so well

Point it
And it goes in that direction.

Mine flew over 20 times
Until I decided to fly inverted 30 feet hifh
And I used up elevator to try to make plane climb

Oops
Big mistake

Love that plane

Enjoy
Old 06-18-2012, 10:16 AM
  #22214  
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Default RE: Welcome to Club SAITO !

Also just checked www.rcbearings.com... a set of stainless rear and sealed front for the Saito 120 are only $12.85..plus shipping..
RC bearings has an excellent product and very quick service.
Old 06-18-2012, 10:19 AM
  #22215  
JoseN
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Default RE: Welcome to Club SAITO !

Gentlemen:

Re: Fuel overflow

Lopflyers:

I´m in the same situation with a Saito 100 installed in a Hangar 9 Spitfire 60. I got a tremendous overflow which was stopped using a Sullivan two way valve. I got no overflow while filling the tank but as soon as I finished and opened the carbureter for starting the engine then the over flow starts and difficults the starting of the engine. I had to completely dry the comustion camera closing the inlet needle and open it little by little just to start the engine for braking in it. What I am afraid off is that the engine will stop or malfuction while it is in the air and get in trouble doing an emergency landing.

So, the question is if following Bob´s recommendation to make a loop in the hose to get the apex above the tank fuel delivery to the carburator will prevent the stop or malfunction of the engine. Thank you.
Pepe

PD: In another plane the system to isolate the filling hose with the one tthat goes to the carburator outside the cowling worked fine. I made two holes in the cowling, cut the hose to get one for the hose which will feed the tank and the other to go to the carburator installing in it a filter or just a metal tube to put together both sides when finishing the filling of the tank.
Old 06-18-2012, 10:21 AM
  #22216  
Hobbsy
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Stainless would not last nearly as long as the HardChrome bearings plus Boca is a sponsor of this site. And I honor that.
Old 06-18-2012, 11:05 AM
  #22217  
Cougar429
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Default RE: Welcome to Club SAITO !

JoseN, from what you describe your tank is also too high in relation to the carb centerline. Once you open the throttle barrel you also increase the fuel port size and that allows the fuel to gravity feed into the carb throat. If the engine is inverted it will flow down the intake pipe to the head. This can risk hydrolock as that slug of raw fuel is drawn into the combustion chamber when the valve opens.

That is before starting. Even if you get it to fire the problems will get worse since if you have to lean out the mixture so much to allow it to run as fuel is burned off you increase the risk of going too lean. From my own experience with Saitos they do not like that at all.

I had the opposite problem during the Rare Bear build since the stock tank location was at the bottom of the fuse. This placed it too low and even before the first start I opted to redesign the setup aft of the firewall to swap the location of the tank and main flight pack. Now the tank is centered to the carb and runs beautifully.

A general question here. I recommended R6-ZZ and MR6902 bearings for the 120 as that is what came up on Bocas listing when I input the 120. With the MR6000 and MR16003 numbers posted here I flipped open the Boca catalogue I pick up at the Toledo Show every year. There are several different 120 versions with my numbers only coming up on one of them. What is the difference between the 120 4C and the 120S? Not a size I own, just curious.

Hide Signatures
Old 06-18-2012, 11:13 AM
  #22218  
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Jim et al, I got a chance to put some more fuel through the .65 today, for fun I tried an old .91 muffler and the results were not good. I couldn't get the thing to rev past about 1/3rd throttle. At that point it would hesitate and if opened further it woyuld just die. I tried 6 turns open on the HS needle and then 1/2 turn more open on the LS needle all to no avail. Anyway after about 14 oz more fuel it will reach 9,700 with its stock muffler. Todays fuel was WildCat 2/4 15% with 18% full synthetic.

Prop MA K-13x6
Plug==Fox Miracle
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Old 06-18-2012, 12:45 PM
  #22219  
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Default RE: Welcome to Club SAITO !

Wow !!!! This club/thread is a gold mine of info.! Thanks for telling me about it Hobbsy. I doubt I'll be able to read the entire thread but, it will be my main source of info. for my newly acquired FA-80.

RJ
Old 06-18-2012, 12:52 PM
  #22220  
Hobbsy
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Howdy Rowdy, we meet on the digital river again. You'll even get read some gems of advice that are polar opposites and right along side the truth. We try to keep it fun though.[8D]

That Saito Notes stickied above is a libray of all things Saito and long.

How's that for a Texas style greetin.
Old 06-18-2012, 01:07 PM
  #22221  
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Great Dave. I feel right at home. Got my boots off and put my feet up on the coffee table. I'm all settled in for some powerful readin'.

I was just reading a few posts about the "Turboheader". Sounds like it's a worthwhile investment. I may look in to buying on if needed but, I don't think I'll need any extra power for my D VII. They sure look good though. I've watched a few videos of this bird with 4 stroke 80s/82s on them and they appear to fly very scale and a capable of a bit more. This should be a great combo.

I should be at the field today practicing for the next IMAC contest but, Igot a bit sunburned Sat. at the SPAevent so, am sitting inside in the AC and allowing the "heat" to die down.

Thanks again,
Garry
Old 06-18-2012, 01:12 PM
  #22222  
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Jim, the RCSpecialties guy, (who makes the THs) post here quite often, he's a great guy and is a sponsor of this site.
Old 06-18-2012, 02:03 PM
  #22223  
Cougar429
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Default RE: Welcome to Club SAITO !

Hobbsy, any reason you can think of why the muffler would make such a difference on your 65? I would not have expected any appreciable backpressure or tuning effect.
Old 06-18-2012, 02:09 PM
  #22224  
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Default RE: Welcome to Club SAITO !


ORIGINAL: Hobbsy

Richard, here is a chart some of us Saito guys should hang on to. I couldn't come with it on the new Horizon site but a general internet search brought it right up.

http://www.horizonhobby.com/article/...th-alpha-codes

PS, have you played with that big twin yet? Thanks, Dave

Hi Dave, thanks for the Saito Alpha codes index. However, none was specific to the 120 ABC, Is there a code for that heavy, old air-bleed carb. boat anchor; or what (combination of) codes would apply? Re the FA-130T, I have not yet fired her up; I have had continuing health issues. But, I am "home alone" the next week, so I hope to get to the field and start her up. I plan to use the Wildcat 2/4, 18% synthetic you have used; what prop should I use? Thanks and hope to see you flying soon.

Best regards, Richard
Old 06-18-2012, 02:30 PM
  #22225  
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Default RE: Welcome to Club SAITO !

Cougar 429:

Thank you very much for your comments. I think I have to do a lot of work redesigning the tank position because the recommended engine for the Hangar 9 Spitfire 60 ARF is the Saito 100 -INVERTED. The inverted position of the engine generates the unlevelling of the carbureter center line too down in relation to the tank fuel lines.

Have any one else had this problem with the Spitfire 60 ARF?. How they solve the problem. I know there are a lot of Spitfires beatifully running and flying with the Saito 100.

Thank you all,
Pepe

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