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Old 04-07-2010, 03:35 PM   #1
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Default help nitro fuel % switch

i am currently using odonnell 30% fuel and got a gallon of 20% free what do i do in the tunning department
less nitro content should i lean the motor out or richen it
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Old 04-07-2010, 03:47 PM   #2
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Lower nitro content will require a leaner tune.
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Old 04-07-2010, 04:47 PM   #3
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should i try a 1/4 or 1/8 turn these questions might seem dumb but ime new to nitro and learning alot by these little questions
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Old 04-07-2010, 05:04 PM   #4
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There really is no set amount. There are far too many variables to say you need X amount of adjustment.
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Old 04-07-2010, 05:48 PM   #5
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well i know what my motor sounds and runs like so i guess i will go off sound and what my motor tells me then check my temps thanks for the help
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Old 04-07-2010, 06:45 PM   #6
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probably 1/2 turn on top and 1/4 turn on the bottom, should see better run times and hardly noticeable loss in performance. slightly higher temps though, 20-30 degrees maybe.
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Old 04-19-2010, 08:35 PM   #7
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I am about to do this switch too. People say you get shorter engine life with higher nitro? If the first thing I need to do is lean my tune out than how is the higher nitro worse for my engine? I get to run it richer and it will be cooler but the engine wears out faster??? This makes no sense to me.
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Old 04-19-2010, 10:37 PM   #8
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Running rich isn't good either because engine not up to temp parts fit tighter. Another thing poeple don't think about it's hard to compress liquid
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