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Old 09-24-2018, 03:23 AM
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Join Date: Jun 2011
Last Online: 10-19-2018 01:47 PM
Location: Paraguay
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Default free 2 stroke fuel/oil calculator + carb sizer

     

2 Stroke Fuel/Oil Ratio Calculator
Based on the engine oils viscosity at the higher upper cylinder temps my calculator can recommend the needed fuel/oil ratio. This method agrees basically with the best manufacturers but it can be specific to your engine as RPM and type cylinder cooling affect how much oil is needed. End the guessing game with my free calculator.

Carb Sizing Calculator
carb diameter = .8 x square root(cc x RPM/1000) was the formula I'm familiar with but once I thoroughly investigated the subject I found the manufacturers size the carb by the desired flow velocity, not by that formula. So I created my own formula to mimic what they have done.

Last edited by jaguar; 09-29-2018 at 12:11 AM.
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