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Old 03-22-2009, 07:50 PM   #1
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When tuning a nitro engine, I just got my first one I have seen some people tuning them by free reving them, the directions say to make full speed runs after each adjustment, which is best? Are there any other tuning methods that work well?
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Old 03-22-2009, 08:29 PM   #2
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Bench tuning is ok, but if you really want to see results it's best to tune while making full speed runs after every adjustment.
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Old 03-22-2009, 08:43 PM   #3
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tune it for how you are going to drive it, on the track
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Old 03-22-2009, 08:53 PM   #4
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and wait till it is up to temps.
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Old 03-22-2009, 08:55 PM   #5
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Get it close on the box first....dont throw it on the track if its bogging or there is no smoke coming from the exhaust, or you have slow throttle response...get help from someone before you try tuning yourself, and ask them what they are doing and why
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Old 03-23-2009, 12:27 PM   #6
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Get it close on the box first....dont throw it on the track if its bogging or there is no smoke coming from the exhaust, or you have slow throttle response...get help from someone before you try tuning yourself, and ask them what they are doing and why
It also says that it can be tuned by reading the temp at the glow plug, it that ok, what is a good temp range to be in? What tuning procedures do you all use?
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Old 03-23-2009, 12:41 PM   #7
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It also says that it can be tuned by reading the temp at the glow plug, it that ok, what is a good temp range to be in? What tuning procedures do you all use?

210-250 is ussually good, but each motor is different. i usually tune for sound and smoke, then check my temp.
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Old 03-23-2009, 12:51 PM   #8
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Start with the break in settings your engine came with..From there you should turn the top screw (HSN) 1/8 at a time clockwise until your speed is good. Always watch the smoke coming from the pipe..Never let the smoke go away during throttle inputs.. From there go to the Low speed Needle (LSN) what you want to do is turn it clockwise 1/8 at a time until you have good throttle response..in other words when you squeeze the trigger the car takes off, with no hesitation or bogging.. People do not tune for temps any more..you always want to tune for Smoke and performance, but...Keep an eye on your temps..if they go past 250-275 it usually means something is wrong ( too lean) it is nearly impossible to learn tuning on-line Please get help or it is very likely you will harm your engine
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Old 03-23-2009, 12:57 PM   #9
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Does the engine temp fluctuate with air temp or is that a good range to shoot for on any day? Do you tune on the bench or on the track? So if I tune so it has a nice trail of smoke and runs well, then check and if the temp is between 210 and 250, it should be good?
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Old 03-23-2009, 01:13 PM   #10
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Use the temps as a base starting point but only after you have warmed up the engine. DONT make major changes to ANY needle as you only need to make minor changes to make a big difference. Yes tempurature and humidity make differences on how your car runs.. nitro engines will almost always need some kind of tuning daily cause the air it breathes will be different everyday.
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