OS 81 FS

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10-01-2012, 02:59 PM

twin3d

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Join Date: Aug 2006

Location: Blacklick, OH

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OS 81 FS

What kind of tach readings are you guys getting on your .81's? I am seeing 8700-9200 on mine with a 13x6 threeblade. I can get 8700 on a regular basis.

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jnayjaso (04-05-2020)

02-25-2020, 05:01 AM

SuperNash

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5% nitro, full synth
OS-F plug
14x6 APC
9200 rpm

Very smooth motor, usual quality OS carb.

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jnayjaso (04-05-2020)

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