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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › 700N Fuel Needle Settings for Align 91H and OS 91 HZ Engines
03-25-2009 01:57 AM  10 years ago
inkspot1967

rrProfessor

Cranston Ri

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30% Curtis Wildcat fuel

but im still on the rich side and have about 2 1/2 gallons thru the motor and running in the 190deg range
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03-25-2009 09:40 AM  10 years ago
Popcorn

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Switzerland

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Ink

What happened to your love Cool-PowerIs there a reason, that you have changed your fuel preference?
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03-25-2009 02:24 PM  10 years ago
inkspot1967

rrProfessor

Cranston Ri

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cool power is $5 to $10 more a gallon sometimes then wildcat and a 90 drinks it fast.....lol
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03-26-2009 02:13 PM  10 years ago
TCP

rrElite Veteran

Kingsley, MI - USA

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oshz motor with sb20 pipe, cy 30% fuel, mid 2turns out high 2 turns minus 3 clicks, huge power and nice and cool.
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03-26-2009 02:39 PM  10 years ago
latesleeper

rrApprentice

OH

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It would be great if you guys could indicate if you are using an extra shim.

I'm running 1.5 turns mid, 1.5 turns high, 30% Youngblood,SB20 pipe, with extra head shim on my OS91HZ (no pump).
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03-26-2009 05:32 PM  10 years ago
rcnut

rrElite Veteran

Rockford, Illinois

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It would be great if you guys could indicate if you are using an extra shim.

I'm running 1.5 turns mid, 1.5 turns high, 30% Youngblood,SB20 pipe, with extra head shim on my 91HZ.
Which 91HZ?
Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!
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03-26-2009 07:29 PM  10 years ago
Popcorn

rrVeteran

Switzerland

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There is no need for an extra shim IMHO. I use 30% nitro fuel and even though my needle settings are still on the rich side, the engine runs very smooth!
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04-17-2009 12:47 PM  10 years ago
rcnut

rrElite Veteran

Rockford, Illinois

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Rockohaulic
I now have 13 flights on my 700, and the needle settings....so far;

Main = 1.5
Mid = 1
Idle = slightly rich (11:00'ish)

Align 700N w/710mm Radix
Align 91 HZ w/extra shim installed
Outrage muffler
Wildcat 30% CY
Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!
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04-18-2009 07:16 PM  10 years ago
daniele76

rrNovice

Italy

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Who can put a picture if possible of the minimum set of spiked?

I carburetion problems with my OS HZ with pump without pump.
This is the problem when they are idling and first heli that rises from the ground the engine pulls tears, it seems that emaciated alone. I turned the lever of the minimum clockwise 1 / 4 compared to the neutral position, but nothing to do, it seems that is fine but then when he lands emaciated by itself and the clutch engages to tears.
Fuel use to 20% nitro and 23% kl198, the pin of the maximum is 1,5 turns and the middle 1,5 turns.
What aid?
thanks guys!
No pitch , No fun
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04-18-2009 07:26 PM  10 years ago
daniele76

rrNovice

Italy

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As gasket thickness under head or engine you have?
I have two for a total of 4 dec.
No pitch , No fun
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04-20-2009 02:36 AM  10 years ago
Helinutnz

rrElite Veteran

below 42 South

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This is the problem when they are idling and first heli that rises from the ground the engine pulls tears, it seems that emaciated alone. I turned the lever of the minimum clockwise 1 / 4 compared to the neutral position, but nothing to do, it seems that is fine but then when he lands emaciated by itself and the clutch engages to tears.
whoa daniele76....is that martian or your take on English? Sorry fella but I can't even understand it.
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04-20-2009 12:18 PM  10 years ago
daniele76

rrNovice

Italy

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excuse me, but I'm writing with the translator. See if you understand better now what I mean:

my carburetion problems with my OS HZ. This is the problem when the engine is idling is not smooth and tends to increase rounds alone. I turned the mixute control valve clockwise 1 / 4 compared to the position of the factory, but the problem does not change carburetion.
The engine rpm increases on its own and becomes thin to carburetion
Fuel use to 20% nitro with 23% Klotz oil kl198, the bellow niddle valve is 1.5 turn, top niddle valve is 1.5 turns.
As head gasket thickness or engine are two for a total of 0.4 mm
You can help to regulate this engine?
No pitch , No fun
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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › 700N Fuel Needle Settings for Align 91H and OS 91 HZ Engines
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