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Saito 100 Tach Readings: Please Post

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Old 11-05-2002, 03:34 AM
  #1
seanychen
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Default Saito 100 Tach Readings: Please Post

On 10% Nitro Sig fuel, OS #F plug, I get the following:

APC 15x6 @ 9500
Zinger Pro 15x6 @ 9200

Anybody has the tach number for Zinger 16x5 prop?
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Old 11-18-2002, 03:25 AM
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Default Saito 100 Tach Readings: Please Post

Saito 100

APC 15x6
Wildcat 15% nitro/18% all synthetic oil fuel
O.S. Type "F" glow plug

Peak RPM's 9,800
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Old 11-18-2002, 03:44 AM
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Default Saito 100 Tach Readings: Please Post

Looks like I gotta use 15% nitro. Hopefully after running a few gallons, its power will reach 9800 on APC 15x6
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Old 12-12-2002, 06:54 PM
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Default Saito 100 Tach Readings: Please Post

Saito 100
20/20 YS fuel
APC 16x4W
9800 RPM
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Old 12-12-2002, 08:00 PM
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Default Saito 100 Tach Readings: Please Post

mecam,

How was the throttle response with the 16x4W on Saito 100? Was it pretty laggy? I tried the 16x4W on Saito when it was fairly new, running on 10% nitro fuel. The spool up was really slow, and would not hold a reliable idle. Would 20% nitro make substantial difference?
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Old 12-29-2002, 02:55 AM
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Default Saito 100 Tach Readings: Please Post

Saito 100
Home brew 30% Nitro/18% Oil
APC 14/6 (Will hover Ultra Stick little less than half throttle)
10,300 Max / Fly at 9,900-10,000
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Old 12-29-2002, 05:40 AM
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Default Saito 100 Tach Readings: Please Post

Quote:
Originally posted by seanychen
mecam,

How was the throttle response with the 16x4W on Saito 100? Was it pretty laggy? I tried the 16x4W on Saito when it was fairly new, running on 10% nitro fuel. The spool up was really slow, and would not hold a reliable idle. Would 20% nitro make substantial difference?
No lag at all, well nothing that I can notice. I haven't tried a 10% nor 15% so I can't compare it. I used the same prop on a Sai91 and that had a spool lag.
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Old 12-30-2002, 01:24 AM
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Default Saito 100 Tach Readings: Please Post

Quote:
Originally posted by mecam


No lag at all, well nothing that I can notice. I haven't tried a 10% nor 15% so I can't compare it. I used the same prop on a Sai91 and that had a spool lag.
Maybe I should go to the YS 20/20 fuel, or even higher, like the 30% heli fuel. What brand of fuel do you use, Mecam?8
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Old 12-30-2002, 01:43 AM
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Default Saito 100 Tach Readings: Please Post

Quote:
Originally posted by seanychen
What brand of fuel do you use, Mecam?8
I use a Powermaster 20/20, I think a 30% might be too much.
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Old 12-30-2002, 02:33 PM
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Default Saito 100 Tach Readings: Please Post

In reference to 30% nitro heli fuel for the Saito 100, this is ok. Morgan Cool Power Heli 30% nitro/ 22% synth oil. Check out Horizon Hobbies web site about the Saito engines, they even recommend it, as long as you have good oil %. Personally, I use 20/20, a buddy uses 30% in his Saito 91, and it runs very good!

This is a direct quote from Horizon's web site:
"Notice that we achieved significant increases in performance (300 to 400 rpm) when using 30% Cool Power helicopter fuel in the Saito but saw minimal increases in the O.S. with the high nitro fuel. Our staff commonly uses 30% heli fuel in Saito engines, as it not only gives better top-end performance but it runs smoother, gives a better transition, and runs cooler."

Hope this helps,
EdMan
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Old 12-30-2002, 04:17 PM
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Default Saito 100 Tach Readings: Please Post

30% might *COST* too much
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Old 12-30-2002, 10:06 PM
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Default Saito 100 Tach Readings: Please Post

Sure 30% will cost ya a bit more $$, but if you want that little extra in power, it's gonna cost ya a little extra in fuel...... pirate:

EdMan
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Old 12-31-2002, 06:50 AM
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Default Saito 100 Tach Readings: Please Post

I have found that all my Saitos (have 5, including a twin) just seem to run and idle a little better and smoother with the 30% fuel. I am lucky though, I mix my own and get nitro and alcohol for free.
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Old 12-31-2002, 08:06 AM
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Default Saito 100 Tach Readings: Please Post

Any advice, please, on how much Nitro you'd recommend for a Saito 170 R3 radial ?
Thank you.
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Old 01-04-2003, 08:48 AM
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Default Saito 100 Tach Readings: Please Post

Umm, start w/ 15%?
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Old 01-04-2003, 01:25 PM
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Default Saito 100 Tach Readings: Please Post

Thanks Seanychen,
Will do
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Old 01-06-2003, 04:45 AM
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Default Brand new Saito 100

After 40 minutes of rich break-in on 15% Cool Power, with a 14 X 8 APC, I peaked at 9,300, flew it at 8,900.

mt
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Old 10-02-2003, 07:08 PM
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Default RE: Saito 100 Tach Readings: Please Post

I just ran my Saito 100 w/ 30% nitro Cool Power Heli fuel. I have the following:

APC 15x6 @ 9900 rpm. On my force gauge, it pulled 12.5 lb of static thrust.
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Old 10-23-2003, 09:07 AM
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Default RE: Saito 100 Tach Readings: Please Post

Saito 100

YS 20/20
Zinger 14-8 9500 rich
APC 14-8 9800 rich
Graupner 13.5-7 10,000 rich

Zinger Pro 15x6 9200 rich
APC 15x6N 9400 rich
Graupner 14-7 9800 rich

Glug OS-F

Model
Kangke USA Cap 232 Sport 8.5 lbs

Good vertical, can hang on the prop with 14-8 and accelerate from hover straight up
15-6 Zinger Pro had a little detonation on top end. Good downwind braking, seems to run a little too much RPM for what I like to do, 14-8 is better for me. Also I would run Graupners full time if I could find one in the pitch I want.


Jds
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Old 04-11-2004, 02:03 PM
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Default RE: Saito 100 Tach Readings: Please Post

Saito 100

35 degrees farenhiet
4500 ft
Wild cat 30% Heli
APC 15 X 6
TruTurn spinner
3rd run from initial break in

peak 9500
running 9250
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Old 04-15-2004, 05:57 AM
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Default RE: Saito 100 Tach Readings: Please Post

Coolpower 15%, near sea level.

APC 15x7 peak 8600
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Old 05-17-2004, 10:59 AM
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Default RE: Saito 100 Tach Readings: Please Post

Saito 100
OS "F" Plug
Cool Power 30% Heli
Slimline Pitts Muffler
Perry Regulating Pump (Tank on CG)

APC 15x6 11,200 for ~5sec until i got over the shock and throttled down.

I fly it a 9,900 to 10,000.
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Old 11-09-2005, 09:33 PM
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Default RE: Saito 100 Tach Readings: Please Post

Powermaster 20/20 fuel
Master Airscrew 14x7 3-blade = 9500 rpm
Graupner 14x7 3-blade = 8700 rpm
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Old 11-10-2005, 03:11 AM
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Default RE: Saito 100 Tach Readings: Please Post

On 20/20 coolpower fuel and OS Type F plug, peaked...

APC 14x8 - 9300
APC 13x10 - 9500
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Old 11-20-2005, 10:44 PM
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Default RE: Saito 100 Tach Readings: Please Post


Powermaster 20/20 fuel
Master Airscrew 14x7 Scimitar 2-blade @ 10100 peak

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