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Old 11-06-2008, 12:04 PM   #1
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Default Optimal idle RPM?

Question for you folks: What is the optimum RPM range for a nitro at idle?

I've read & seen many threads about setting up nitro idle and am comfortable with tuning... but as you know you can easily set an idle too high or even a little low and still not have wheel roll or die-out/bog down in throttle response. Is there an ideal idle RPM range for nitro engines or is it dependent on motor size or type? I'm thinking about engine longevity...

I tested and I can have a working idle/throttle response with appropriate fuel mix (slightly rich, not too lean) with my idle RPM set "high" or low, both with no wheel spin or torque to wheels at idle. The only variable I see is a slightly higher top end temp of ~270 with a higher base idle set but still within acceptable operating range.

So, is there a target baseline to go for or is it just a crapshoot?
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