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Old 09-03-2018, 06:03 AM
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RichardGee
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Originally Posted by Hobbsy

Richard, here is a ring Fox .74 turning a Graupner 12 x 8 three blade at 9,300 rpm on Davis ABC blend. With the Fox EZ Just carb it turned about 9,450. Interestingly, I had a Graupner 12.5 x 7 that turned 900 less rpm, it's blades were about 1/8th" wider.


Bisson 60 size muffler adapted to the Fox 74, note opposed baffles, it had deep throb sound but not at all loud.
Have you found a source for diesel fuel or are you mixing your own?
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