Saito 1.80. tach readings
10-17-2002, 04:17 PM
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Saito 1.80. tach readings
20% synthetic oil, 20% nitro, APC 16x8 9700 rpm, I want to try the Mejzlik 17x10 and the APC 18x6w during the weekend
10-18-2002, 08:25 AM
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Saito 1.80. tach readings
I love my Saito, I'm thinking in buying another one. This is a great engine with loads of power, and character specially the GK version. You just have to be patient with the running in procedure takes about 3 gallons after that runs flawless. Never had to change any of the factory preset settings for idles and middle range you get an instant throttle response all the way to full power.
10-28-2002, 01:13 AM
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Saito 1.80. tach readings
Only one for you guys today.
90°F, just about sea level (Florida), Wildcat 10%, engine has 3-4 gallons through it, Schimtar (sp?) 17x8 wood was spinning at 8200 conservatively tuned. I will try more later in week.
90°F, just about sea level (Florida), Wildcat 10%, engine has 3-4 gallons through it, Schimtar (sp?) 17x8 wood was spinning at 8200 conservatively tuned. I will try more later in week.
11-18-2002, 03:28 AM
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Saito 1.80. tach readings
Originally posted by Daleroger
My Saito 180 turns a Mejzlik 20/6 to 7900 rpm running 15% Red Max Syn. It's mounted on a GP Giles 202, and flys it very well, not 3D though.
My Saito 180 turns a Mejzlik 20/6 to 7900 rpm running 15% Red Max Syn. It's mounted on a GP Giles 202, and flys it very well, not 3D though.
Try an 18x6 and you will be much happier... you will gain about 1,000 RPM's and a lot more thrust!
11-18-2002, 03:30 AM
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Saito 180c
Ok, heres mine:
RPM's: 9,000
Version: C
Prop: APC 17x8
Fuel: Wildcat 15% nitro/18% all synthetic oil fuel (w/4 oz. of Klotz all synthetic added to each gallon)
Glow Plug: O.S. Type "F"
Other: Field elevation 750 ft. MSL, temp 35°-85° F
RPM's: 9,000
Version: C
Prop: APC 17x8
Fuel: Wildcat 15% nitro/18% all synthetic oil fuel (w/4 oz. of Klotz all synthetic added to each gallon)
Glow Plug: O.S. Type "F"
Other: Field elevation 750 ft. MSL, temp 35°-85° F
11-18-2002, 01:04 PM
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Saito 1.80. tach readings
My theory on the 20/6 Mejzlik / Saito 180 is;
It's quiet, it mades for great brakes on a downrun,and it keeps the unloaded rpm's under 9,000, anything above which is asking for trouble,as least on my "A" stamped engine. As for the thrust, I have never checked it, but it is substantial . The 12 1/2 lb Giles is off in about 20 feet and pulls straight up. I do have an 18/8 though, and will give it a try.
Thanks,
Dale
It's quiet, it mades for great brakes on a downrun,and it keeps the unloaded rpm's under 9,000, anything above which is asking for trouble,as least on my "A" stamped engine. As for the thrust, I have never checked it, but it is substantial . The 12 1/2 lb Giles is off in about 20 feet and pulls straight up. I do have an 18/8 though, and will give it a try.
Thanks,
Dale
11-18-2002, 09:49 PM
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Saito 1.80. tach readings
The largest diameter prop Saito recommends is a 17"
Using a larger prop is like having the manifold pressure too high and the RPM's too low on an engine with a constant speed prop... Basically you could cause more harm than good... kinda like driving your car in 5th gear at 30mph... it works, just not really well and your engine doesn't like it...
I would say if you want to stay big, I wouldn't go any larger than an 18x6 (MAYBE an 18x8 max)...
BTW on my 12 lb. Edge 540 about the only time I use full power is take-off and vertical maneuvers... and in those situations the prop loading is such I don't think it is unloading to any great degree....
Actually Saito seems to push the APC 16x8 prop for this engine... that turns an extra 500 RPM's MORE than the 17x8... go figure!
Using a larger prop is like having the manifold pressure too high and the RPM's too low on an engine with a constant speed prop... Basically you could cause more harm than good... kinda like driving your car in 5th gear at 30mph... it works, just not really well and your engine doesn't like it...
I would say if you want to stay big, I wouldn't go any larger than an 18x6 (MAYBE an 18x8 max)...
BTW on my 12 lb. Edge 540 about the only time I use full power is take-off and vertical maneuvers... and in those situations the prop loading is such I don't think it is unloading to any great degree....
Actually Saito seems to push the APC 16x8 prop for this engine... that turns an extra 500 RPM's MORE than the 17x8... go figure!
11-26-2002, 02:45 AM
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Saito 1.80. tach readings
Temp was about 60° on Saturday morning, I'm near sea level in Florida. Broke my 17x8 wood so threw on the Master Airscrew "classic series" 18x6. Running 10% Wildcat (18% synthetic blend) I was at 8860RPM stable and 5-6 clicks below peak.
12-11-2002, 03:24 PM
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Saito 1.80. tach readings
I get 9300 on mine with a 17/8N APC, and 30% Wildcat Synthetic, with 2ozs. of Castor added. It`s in my DP Ultimate. Hovers at 2/3 throttle, and flys out with authority. I`ve been doing some informal testing with narrow blade props. So far my 180 likes them them a lot.
