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Old Aug 16, 2005, 06:01 PM
big bird is offline
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Belfast / Dublin
Joined May 2004
1,554 Posts
5% nitro is fine - my saito runs like clockwork on it and delivers the goods. Be very wary of lean runs with lower % of synthetic fuel - this can be risky.


FA 100 should be well capable of 14x8 prop, I'd say even more ... like a 15" or 16" should be no problem - what does the manufacturer recommend? Then go for the middle of this range

13x6 will be under propped for that engine - even if you consider that it's not making max power on the 5% nitro fuel (it's making close to max power)

A lengthy run in is necessary, starting very rich and gradually leaning out over a gallon of fuel - then run a little rich.

It might be the case that your motor isn't yet run in so be patient ... stick with the bigger prop and gradually lean out ... it'll get there

big bird
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