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Saito 125 RPM numbers

Old 02-24-2006, 01:16 PM
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BAS
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Default Saito 125 RPM numbers

Just ran my new Saito 125 on wildcat 20/20 Perry Pump , straight exhaust APC17/4 Wide blade , with only one hour run time on the motor i tached the motor with readings of 8750 to 8850 . I am really impressed with this motor and i love the Perry vp 20 pump. Needle settings are really consistent and even when the tank is low on fuel it runs the same needles
Old 02-24-2006, 01:23 PM
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Default RE: Saito 125 RPM numbers

ORIGINAL: BAS

Just ran my new Saito 125 on wildcat 20/20 Perry Pump , straight exhaust APC17/4 Wide blade , with only one hour run time on the motor i tached the motor with readings of 8750 to 8850 . I am really impressed with this motor and i love the Perry vp 20 pump. Needle settings are really consistent and even when the tank is low on fuel it runs the same needles
For comparison the 16x6apc and the 17x4w apc turn about the same RPM on my motor (static load). The 16x6 actually pull a bit more thrust.

Thanks for the report. The SA125 looks to be a sweet motor.

Old 02-24-2006, 01:30 PM
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Default RE: Saito 125 RPM numbers

Bruce, that falls right in line with my 1.25 turning a Graupner 15x8 at 8,765 on 10% nitro. I expect to see 9,000 after a bit more time.
Old 02-24-2006, 02:12 PM
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Default RE: Saito 125 RPM numbers

I thought the numbers for the Saito would be close to the ys 1.10, but it does not appear like they are. My 1.10 turned an APC 16-6 9,300 running at a 160 Deg's and very rich and hardly working when brand new. After a gallon it was turning 9,800-9,900 and that was not peaked. These numbers were with Power master 20-20, open exhaust composing of a Johnson Bro's pattern header mounted inverted and cowled in a Giant RYAN STA-M.
Old 02-24-2006, 03:03 PM
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BAS
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Default RE: Saito 125 RPM numbers

I think it will be very close to the 110 i have that motor to and i dont see a lot of difference . The Saitos take a lot more time to break in and really loosen up compared to the ys motors. I have run ys motors for years and love them to . I have the motor very rich and i am sure it will perform well after 3 or 4 gallons of fuel. Thanks for the replys.
Old 02-24-2006, 11:40 PM
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Default RE: Saito 125 RPM numbers

im getting 9100 out of mine with apc 16x6,wildcat 20-20, and pulling 13lbs 14oz , im happy
i think everone gets a little different readings because of where they live
Old 02-25-2006, 12:20 AM
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Default RE: Saito 125 RPM numbers

The YS 110 will spin an APC 16x6 well above 9100 rpm on Wildcat 20-20, even at a relatively high elevation.
Old 02-25-2006, 03:08 PM
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Default RE: Saito 125 RPM numbers


ORIGINAL: Richard L.

The YS 110 will spin an APC 16x6 well above 9100 rpm on Wildcat 20-20, even at a relatively high elevation.
Its also nearly a quarter POUND heavier. May not be the best comparison...
Old 02-25-2006, 03:38 PM
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Default RE: Saito 125 RPM numbers

I love saito's, and have owned a 30, 50, 56's, a couple 91's & 100's and a 300t and really think they are a work of art, but I think the YS 1.10 will still spank it badly. That extra 800-900 rpms translates to quite a bit more HP. How it unloads in the air is what matters and a YS will pull extremely hard in the air. That alone will more than make up for the extra weight. The YS 1.10 is a closer match with saito 1.50. The YS will have a better idle, transision, and topend with the ability to put the tank on the cg and no worries of going lean with attitude changes. Sure the YS is a little more difficult to tune. It took me all of 5 minutes to set up the needles. I think trying to compare these two engines is like comparing a Corvette to a Ferrari, they both can do similar performance numbers, but not equal. YS is still dominating pattern, Have yet to see a Saito in there[sm=crying.gif]
Old 02-25-2006, 06:24 PM
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Default RE: Saito 125 RPM numbers

Lighter planes fly better. U can add all the power u so desire, but still have a heavy plane. [sm=bananahead.gif]
Old 02-25-2006, 11:50 PM
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Default RE: Saito 125 RPM numbers


ORIGINAL: coveredup

Its also nearly a quarter POUND heavier.
Only slightly more than 3 oz heavier. Yet the YS 110 is more than $16 cheaper.
Old 02-25-2006, 11:55 PM
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Default RE: Saito 125 RPM numbers

Richard, have you ever tried a 15x8 graupner on the 1.10, I only have a .91FZ but have never tried the 15x8 on it.
Old 02-26-2006, 12:06 AM
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Default RE: Saito 125 RPM numbers

The Graupner 15x8 has pretty wide blades, wider than those on the APC 15x8. My 1.10 peaked out at 9600 rpm on Powermaster YS 20/20 fuel last summer swinging a 15x8 Graupner. Had to back it down to 9300 for flying.
Old 02-26-2006, 12:18 AM
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Default RE: Saito 125 RPM numbers

The 15x8 Graupner will be slighly too big for the YS 91FZ. My 91FZ was only able to take it up to 9100 rpm max on 20/20 fuel, backed down to 8800 rpm for flying. Here is a video of the 91FZ swinging the Graupner 15x8 at full throttle: [link=http://www.warbirdobsession.com/cmp_spitfire/videos/show_pass.wmv]Spit Show Pass[/link]
Old 02-26-2006, 06:08 PM
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Default RE: Saito 125 RPM numbers

ORIGINAL: Richard L.


ORIGINAL: coveredup

Its also nearly a quarter POUND heavier.
Only slightly more than 3 oz heavier. Yet the YS 110 is more than $16 cheaper.
yep
Old 02-27-2006, 06:28 AM
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Default RE: Saito 125 RPM numbers

I have tried at 15x6, 16x6, 16.5x5w, and soon to try a 17x4w. I tached near 10,000 with the 15x6 on Wildcat 20/20. My glowbee (problems with that thing unfortunately) got the 16.5x5w in the low 9000's range. The 16.5 really has some impressive vertical authority with still fun speed, so I am having some fun with that right now.

I was having some issues with the transition and was getting a little disappointed with 2 consecutive dead sticks. Anyway, I finished off the Wildcat 20/20 and decided I wanted to go over to the Cool Power 20/20 Pro-Pattern. Well I ran one tank though it and tinkered with a bit and was much happier, so I refilled the tank and was ready to go. I put on the glow heater (wire version off the power panel) and got no response. I wasn't sure if it was a bad glow plug or just the extender for the glow plug. Anyway, I took off the cowl and pulled the glow plug and it was dead. The stock plug did not even last one tank and the coil looked a bit deformed. Well, everyone here seems so happy with the OS Type F glow plug, so I go one and installed it. I cannot even begin to tell you how much better that engine runs. It has explosive transition now and the power is vastly better.

At the end of the day I learned two things. I would recommend changing that stock plug immediately to the OS F plug. The improvement over the stock plug is very noticeable. Second, the engine loves the Cool Power and also ran much cooler on this fuel. The engine was cool enough that you actually could touch and hold it for a second without burning your hand. The muffler was insanely hot on the wildcat, but after a 10 minute flight on the cool power the muffler was also touchable. I am very happy with the OS plug, and I am sold now on the Cool Power and that is all my Saito 125 will see from now on.
Old 02-27-2006, 07:39 AM
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Default RE: Saito 125 RPM numbers

3 OZ lighter, untill you add the pump. Now you are alot more than $16.00 over that of the YS, and you still cannot equal it for performance.
Old 02-27-2006, 11:08 PM
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Default RE: Saito 125 RPM numbers

The funny thing is that a Corvette handles better than a Ferrari. Just not as cool.
Old 03-20-2006, 12:56 PM
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Default RE: Saito 125 RPM numbers

The frist thing I do with any new Saito is toss the glow plug thats sent with it and pop in a type F plug. Beware there is no castor in cool power fuel its all syn, One lean run can kill your new 125. Omega is cool powers castor /syn blend fuel.
Old 03-20-2006, 02:16 PM
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Default RE: Saito 125 RPM numbers

3 OZ lighter , untill you add the pump . Now you are alot more than $16.00 over that of the YS, and you still cannot equal it for performance.
I thought this was a Saito thread??
Old 03-20-2006, 02:27 PM
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Default RE: Saito 125 RPM numbers

Well, It kinda is. Just a little comparing going on. The Saito still looks kinda Weak.
Old 03-20-2006, 04:42 PM
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Default RE: Saito 125 RPM numbers

Yeah, but Saito will probaly sell a 100 1.25s for each 1.10 that gets sold. I like that comparison better.
Old 03-21-2006, 05:56 AM
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Default RE: Saito 125 RPM numbers


ORIGINAL: MOTORMAN37

Well, It kinda is. Just a little comparing going on. The Saito still looks kinda Weak.
Sounds about right that you are here too MOTORMAN. Just have to sling mud in every thread. My tached numbers look so close to your YS 110 numbers my friend. Maybe everyone doesn't want YS just because you do.
Old 03-21-2006, 10:47 AM
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Default RE: Saito 125 RPM numbers

OK, I take back the weak statement. I just meant to say that the numbers are quite a bit lower than what I am used to seeing with my YS.
You are missing something here. A 1.10 will turn almost 10,000rpm with a 16-6 APC on 20-20 not a 15-6 APC like you did. I am not slinging mub, just stateing the facts. The other thread was asking which one made more torque. Well that is a no brainer, so don't be affended by it.[sm=idea.gif]

[sm=idea.gif]
ORIGINAL: wxman


ORIGINAL: MOTORMAN37

Well, It kinda is. Just a little comparing going on. The Saito still looks kinda Weak.
Sounds about right that you are here too MOTORMAN. Just have to sling mud in every thread. My tached numbers look so close to your YS 110 numbers my friend. Maybe everyone doesn't want YS just because you do.
Old 03-21-2006, 11:20 AM
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Default RE: Saito 125 RPM numbers

ORIGINAL: MOTORMAN37

OK, I take back the weak statement. I just meant to say that the numbers are quite a bit lower than what I am used to seeing with my YS.
You are missing something here. A 1.10 will turn almost 10,000rpm with a 16-6 APC on 20-20 not a 15-6 APC like you did. I am not slinging mub, just stateing the facts. The other thread was asking which one made more torque. Well that is a no brainer, so don't be affended by it.[sm=idea.gif]

[sm=idea.gif]
ORIGINAL: wxman


ORIGINAL: MOTORMAN37

Well, It kinda is. Just a little comparing going on. The Saito still looks kinda Weak.
Sounds about right that you are here too MOTORMAN. Just have to sling mud in every thread. My tached numbers look so close to your YS 110 numbers my friend. Maybe everyone doesn't want YS just because you do.
Anyone that cares go to the torque thread about Saito vs. YS. Motorman says that the Saito 125 turns a 16x6 around 9400 rpm. Then he says that the YS turns it at 9800-9900 rpm. So the math is about 400-500 rpm according to him. Then he says that the YS 110 is 700 to 800 rpm more powerful then later in the same thread it is 800 to 1,000 powerful. How does 9800 or 9900 - 9400 = 1000 rpms? Hmmm. If someone wants a Saito 125, leave them alone.

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