Cyrille72FR's latest activity
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CCyrille72FR replied to the thread Interesting deal...Shindaiwa 750 protype.My guess is : the later design create a flow closer to the intake side, with better swirl, leading to better efficiency. Pour water in...
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CCyrille72FR replied to the thread Chainsaw Pipe Exhaust theory.It doesn't create wave, it just low-pass what the noise combustion and exhaust generate. I guess not around it's tuning frequency...
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CCyrille72FR replied to the thread Chainsaw Pipe Exhaust theory.hello, That's not what I meant, I mean when we implement a tube in a can exhaust, it behave as a bass-reflex : the tube is a band-pass...
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CCyrille72FR replied to the thread Stihl 261 muffler mod question.Hello, I made a simple muffler mod on my 2011 MS261 carb. Opened up the exhaust with a 13mm drill bit. Tuned the carb, runs great...
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CCyrille72FR replied to the thread Chainsaw Pipe Exhaust theory.A chainsaw "can box exhaust" cannot be tuned as well as a true 2 strokes exhaust. But it still act a helmotz resonator : a volume and a...
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CCyrille72FR replied to the thread Chainsaw Pipe Exhaust theory.Exactly strato ports don't change the two strokes timing, it just adds a layer of pure air between burnt gas, and mixture.
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CMy understanding is that the strato loads the "front" of the transfer with air so that you can time the engine to push out more exhaust...
