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Old 10-04-2017, 05:55 PM
  #40  
1QwkSport2.5r
 
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Join Date: Oct 2006
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I don't think mine has the crankshaft problem. Mine just doesn't run at the rpm it should. IIRC I was getting about 16-17k from a 5.5x2.5 APC prop on 10% nitro fuel. The standard glow plug robs 1-1.5k rpm and the weak piston seal robs some. This engine should turn this prop above 20k.

Thanks for the heads up though.