Welcome to Club SAITO !
07-02-2019, 10:25 AM
My Feedback: (1)
Well then i hope you replaced some screws or it WILL come apart, just kidding, i like that red one kmot painted.
Lonnie if the fa100 and 82 carb parts have the same hsn needle part number, will you be buying the same cats eye spray bar part as well?
ps jim, can you really get flight insurance over there? if so i have a plan to disinvest you of that smelly two stroke you still own and whatever heli parts you still have in one hit, won't cost you a cent when the insurance company see the what can happen when you smoke and refuel at the same time.It's OK, you can thank me later.
Lonnie if the fa100 and 82 carb parts have the same hsn needle part number, will you be buying the same cats eye spray bar part as well?
ps jim, can you really get flight insurance over there? if so i have a plan to disinvest you of that smelly two stroke you still own and whatever heli parts you still have in one hit, won't cost you a cent when the insurance company see the what can happen when you smoke and refuel at the same time.It's OK, you can thank me later.
Jim
07-02-2019, 10:43 AM
My Feedback: (1)
Found the problem with the super rich midrange, the ultra copper I was using to make up the gap between the 82 intake manifold and the 100 carb was leaking. Apparently Ultra cooper rtv is not nitro proof.
Having that leak on the vacuum side of the carby was requiring a more open LSN for idle and the outcome is predictable. Found an oring that fits and problem solved.
Compression 11.75:1
100 carby
Custom muffler
15% Nitro Omega
APC 14x6
80° f
80% humidity
Sustainable peak 9650 rpm
Richened to 9500 rpm for flight
Idle 1650 rpm solid
Transition is great
I may try adding a .005" shim under the cylinder to see what the difference between 11.75 and 10.5 compression is, if any.
Having that leak on the vacuum side of the carby was requiring a more open LSN for idle and the outcome is predictable. Found an oring that fits and problem solved.
Compression 11.75:1
100 carby
Custom muffler
15% Nitro Omega
APC 14x6
80° f
80% humidity
Sustainable peak 9650 rpm
Richened to 9500 rpm for flight
Idle 1650 rpm solid
Transition is great
I may try adding a .005" shim under the cylinder to see what the difference between 11.75 and 10.5 compression is, if any.
BTW, I just pulled the carbs off and checked it again for you,,, yee-up,it fits
Jim
Last edited by the Wasp; 07-02-2019 at 10:51 AM. Reason: well what you think, of course I had to install a smiley face
07-02-2019, 01:17 PM
THAT"S ALL FOLKS!
07-02-2019, 01:57 PM
Lonnie, you missed it, you missed what I said way back, yes the 100's manifold tube is slightly larger, but it will fit the 82's intake port. yet you will have to shorten it a bit. it's worth a try for the price of the manifold
BTW, I just pulled the carbs off and checked it again for you,,, yee-up,it fits
Jim
BTW, I just pulled the carbs off and checked it again for you,,, yee-up,it fits
Jim
07-02-2019, 03:30 PM
07-02-2019, 10:45 PM
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Welcome aboard,
That anti-reversion pipe was actually not real quiet. I can give you some details on this very quiet canister muffler.
The video is deceiving since the exhaust note is so low , the other mechanical noises and prop noise overpower it.
Let us know what tools you have on hand as well. These systems can be made from other materials using other methods and the equipment on hand determines those methods.
That anti-reversion pipe was actually not real quiet. I can give you some details on this very quiet canister muffler.
The video is deceiving since the exhaust note is so low , the other mechanical noises and prop noise overpower it.
Let us know what tools you have on hand as well. These systems can be made from other materials using other methods and the equipment on hand determines those methods.
You have me entice with this canister,
If it's not too much asked, can you give me more details on its design :
Volume of the body compared to the engine displacement, length and diameter of the pipes and a small sketch ..
thanks you so much
07-03-2019, 03:49 AM
Sure will, you should really enjoy the project .Right now I am tied up, we had a power failure last night and see have been up for 27 hours now. Had to tend to the generators last night. Finishing up a very big paver project too. I will shoot you the dimensions later. This muffler should be exactly what you are looking for to keep things very quiet.
What country are you in? If shipping isn't crazy, I can send you the aluminum you will need.
07-03-2019, 07:50 AM
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Sure will, you should really enjoy the project .Right now I am tied up, we had a power failure last night and see have been up for 27 hours now. Had to tend to the generators last night. Finishing up a very big paver project too. I will shoot you the dimensions later. This muffler should be exactly what you are looking for to keep things very quiet.
What country are you in? If shipping isn't crazy, I can send you the aluminum you will need.
Ok Jesse, I'm in no hurry. first set all your worries.
It's very cool to offer me aluminum, but I'm in France and the shipping costs must be a bit spicy.
In addition I have a fairly easy supply because I have a friend who works in aeronautics and he can provide me
material falls, and also make me welds on aluminum.
I'm lucky
It's very cool to offer me aluminum, but I'm in France and the shipping costs must be a bit spicy.
In addition I have a fairly easy supply because I have a friend who works in aeronautics and he can provide me
material falls, and also make me welds on aluminum.
I'm lucky
07-03-2019, 09:50 AM
My Feedback: (1)
Lonnie, just for reference, I had the numbers written down, the 100"s manifold ID is .018" larger than the 82"s.. but know the tubes are not perfectly round
Jim
07-03-2019, 11:06 AM
Right, so the ID is .018" larger and that would decrease intake charge velocity compared to the smaller 82 intake. The larger dia would probably peak at higher rpms though that's not what I'm shooting for entirely.
I need to maintain as much low/mid torque as possible for my style of flying so I'm sticking with the smaller dia intake for now.
07-03-2019, 07:02 PM
My Feedback: (1)
Thanks Jim, I appreciate the measurements you do.
Right, so the ID is .018" larger and that would decrease intake charge velocity compared to the smaller 82 intake. The larger dia would probably peak at higher rpms though that's not what I'm shooting for entirely.
I need to maintain as much low/mid torque as possible for my style of flying so I'm sticking with the smaller dia intake for now.
Right, so the ID is .018" larger and that would decrease intake charge velocity compared to the smaller 82 intake. The larger dia would probably peak at higher rpms though that's not what I'm shooting for entirely.
I need to maintain as much low/mid torque as possible for my style of flying so I'm sticking with the smaller dia intake for now.
Jim
Last edited by the Wasp; 07-03-2019 at 07:13 PM.
07-04-2019, 02:57 AM
07-04-2019, 03:36 AM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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It looks like Terry Grant himself set up that ignition, in the 90's probably. Are you going to stick with the ignition or go a little more more modern? Thanks
It's great lookin engine. Are the black cylinders standard. Thanks again.
It's great lookin engine. Are the black cylinders standard. Thanks again.
07-04-2019, 03:55 AM
As far as I know the 300’s all had this cylinder combination GK top and standard case
07-04-2019, 06:00 AM
Dave's Smith Miniplane 2017
Nice catch there. My buddy, Dave has a 300 in his beautiful scratch built Smith Miniplane. That is one heck of an engine and it runs super on glow.
Last edited by Jesse Open; 07-04-2019 at 06:04 AM.
07-04-2019, 06:29 AM
Yep,
They are black.
Dave initially had timing problems when he assembled his 300. He brought it over and while setting it up with a degree wheel it turned out the Saito manual had an error. Anyhow, we got the bugger right and it really runs nice. Dave also had a Gemini 300 in a nine foot Flybaby. The Saito was my favorite of the two.
Captain, Looks like you have plenty of 1 2 3 blocks on hand there
Last edited by Jesse Open; 07-04-2019 at 06:38 AM.
07-04-2019, 08:55 AM
Yup I thought the 300 would run on glow with no problem. I am thinking of running with ignition, then on glow just for the fun.
Found a deal on eBay I have ten of them 1,2,3 blocks there very helpful in building
Found a deal on eBay I have ten of them 1,2,3 blocks there very helpful in building
07-04-2019, 02:00 PM
