How To: Tune a Nitro RC engine

Tune a Nitro RC engine

This video will show you how to tune your nitro engine on the LSN, HSN, MSN and other methods. Not sure if it is a idle or lean issue? We will help you!

This video will show you the theory on how to turn. The counter clock wise (CCW) and clock wise (CW) movements of the hsn (high speed needle) and low speed needle (LSN) and how they affect the kits speed and power over all. This will show you the theory of fine tuning either from the amount of smoke out of the pipe to increased speed an the amount of power off the starting line. The next video will show you the actual tuning of the engines over theory.

This video is on my break in method. I use half of the new school break in method and half of the traxxas. My method goes like this:

tank 1: 1/4 throttle, leaned to 200 degrees, no full brakes and really no time limits on the throttle ever to keep it moving like the new school method.

Tank 2 and 3 are half throttle tanks. Same as above. You can tune the engine a little more if you would like. Dont fully tune though as you want to keep it a little bit rich.

Tanks 4 and 5 are full throttle. Again with the above, tune a little more if you want. I have mine so that it is in ball part by the time that the last tank is done. Keep the truck moving like the new school method.

This vid is on the new school break in method. The nice part about this method is that heat is good and it is the focus of the break in. Once you achieve a constant 200 degrees F then you finish that tank and move on to the next method. For the first cycle you run for 3 minutes and then check the engine temp. If you are at 200 degrees then move on. If not, lean it to gain more heat or richen it to lessen heat. Cool the engine at bottom dead center BDC and then start the engine back up. Run the engine for another 3 minutes and then see where the temp is.

You will repeat this till you are constantly at 200 degrees.

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