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HelicopterAlignT-REX 600N › Just bought a 600N
03-16-2009 08:51 PM  8 years agoPost 1
chopper_crazy

rrElite Veteran

Delphos, Ohio

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I just purchased a used T-Rex 600 Nitro Pro. The guy before me was running 30% fuel. I plan on running 20% since I have some laying around. Do I need to richen or lean the engine? Thanks.

It's a complex, costly, glow powered anti-gravity machine!

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03-16-2009 08:58 PM  8 years agoPost 2
psych-lick

rrKey Veteran

Portland, OR

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lean

-Jeff T.

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03-16-2009 10:20 PM  8 years agoPost 3
Anthony.L

rrElite Veteran

Seattle, WA

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Regardless of the nitro content, unless the seller lived down the street, you will need adjust the mixture needle due to your weather conditions.

My suggestion, don't change the needle up or down based on the setting you received it in. Instead turn the need all the way in, then reset to "break-in" needle settings. Then tune at the field to your liking and current weather condition.

This way you don't risk tuning an engine you don't know where it's currently set at and possibly destroying the motor.

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03-17-2009 02:05 AM  8 years agoPost 4
chopper_crazy

rrElite Veteran

Delphos, Ohio

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actually, the seller lived two streets down the road It made it real easy to know how it was treated!!

It's a complex, costly, glow powered anti-gravity machine!

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03-17-2009 02:10 AM  8 years agoPost 5
Anthony.L

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Seattle, WA

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LOL

I would still reset the needle so you know exactly where it is.

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03-17-2009 02:54 AM  8 years agoPost 6
dave75d

rrKey Veteran

Jacksonville, FL

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which motor you runnin? O.S. or Y.S.?

ten grand in helis and all i can do is hover

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03-17-2009 03:22 AM  8 years agoPost 7
Zaneman007

rrElite Veteran

Texas - USA

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I believe the OS 50 is set up for 30% out of the factory. You may want to remove a shim to increase the compression.

We have a guy at our field running 15% with good results. He has removed all of the shims.

Old Guys Rule!

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03-17-2009 04:54 PM  8 years agoPost 8
flustercluck

rrVeteran

Newnan Ga (Just S.​of ATL)

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my Hyper w/ Align pipe on my 600 has never seen anything other than CP15%... hooo boy she jumps like a jackrabbit

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03-18-2009 12:34 AM  8 years agoPost 9
chopper_crazy

rrElite Veteran

Delphos, Ohio

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I run an O.S. 50 hyper. Ran some 20% through her today and it ran well What should a good operating temperature be for this engine?

It's a complex, costly, glow powered anti-gravity machine!

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03-18-2009 01:58 AM  8 years agoPost 10
hm_oliver

rrApprentice

Myrtle Beach, SC -​USA

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You should be able to put your finger on the back of the engine plate. It should be warm to touch but not burn you. 200-220 if you have a temp sensor.

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03-18-2009 03:20 AM  8 years agoPost 11
chopper_crazy

rrElite Veteran

Delphos, Ohio

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thanks hm_oliver I have a temp gauge so that is helpful.

It's a complex, costly, glow powered anti-gravity machine!

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03-18-2009 03:30 AM  8 years agoPost 12
Lojik

rrApprentice

Auckland, New​Zealand

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I find the warm to touch method works well, if you can't hold your finger on there straight after landing its too hot.

Jack
Trex 450SEV2 - Gaui X5 FES - DSX9 2.4Ghz

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03-18-2009 04:07 AM  8 years agoPost 13
hm_oliver

rrApprentice

Myrtle Beach, SC -​USA

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200-220F was a head temp. My understanding is the backplate should be about 120f, but dont quote me on this as i have always taken the head temp when using a temp gauge.

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HelicopterAlignT-REX 600N › Just bought a 600N
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