How to fine tune your nitro engine according to weather and nitro changes


When changing fuel or when the weather changes, you may need to retune your engine. This chart indicates you what to do according to the changing weather conditions and fuel.

Take your time when tuning your engine. Only make 1/16 turn at the time and let the engine warm up before you try to tune your engine. Adjust the high speed needle first and the low speed needle last. Never tune your engine for a specific temperature. First, tune your engine by the amount of smoke, sound, feel and performance. Then, check the temperature just to make sure the temperature is not too high. An engine can perform well at 200F one day and can perform well at 240F another day. This list is to help you when you change fuel or when the weather changes. To tune your engine, always refer to the instruction manual. Since fuel manufacturers don’t use the same quality of lubricant, it is important to pay close attention to the performances of your engine when you change brand of fuel. Remember, it is always safe for your engine to be on the rich side.Print this page and keep a copy in your toolbox.

Conditions What you should do
Higher nitro content Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Lower nitro content Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Hotter glow plug Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Colder glow plug Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Higher oil content Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Lower oil content Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Higher air temperature Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Lower air temperature Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Higher altitude Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Lower altitude Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Higher humidity Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Lower humidity Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Higher barometric pressure Rich How to fine tune your nitro engine according to weather and nitro changes Articles
Lower barometric pressure Lean How to fine tune your nitro engine according to weather and nitro changes Articles
Sylvain Lafrance

Sylvain Lafrance

Hello, my name is Sylvain Lafrance and I am the man behind MyRCBox.com. I have bought my first hobby grade RC in the early 90s. With years, what that started as a simple hobby, quickly became a strong passion. I am so much passionate about R/C that I have created MyRCBox.com in 2006 to share my experiences with R/C products that I use for racing and bashing. Follow me !

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