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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › Temp and Head Speed
02-06-2008 03:39 PM  10 years agoPost 1
wild1957

rrApprentice

Malaysia

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I have a couple of questions and wonder if some one can answer them? What is the optimum operating temperature for the Hirobo Freya running the OS 91 SX with pump and Viper twin plug head?? Please don't tell me hold my finger on for xyz seconds, I would appreciate it if someone can tell me the actual temp please.

Second Question What is the best head speed for the freya swinging 710 radix blades powered by the OS 91 SX engine with viper head??

Thanks,

Stephen

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02-06-2008 04:02 PM  10 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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220F is about the most you'd want, 190 to 200 will give you some overhead because it will heat up while loaded and cool quickly.

I've learned that smoke and sound and feel are more important than a temp gauge.

Andy
AMA 77227
http://www.jaxrc.com

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