One little detail here. Firing cycles are not in hertz. Yes they fire so many times per second, but blow down time for a cylinder has nothing to do with cycles per second. Blow down is just an ordinary exponential time constant. It takes so long to blow down and that is that.
What it means is that a cylinder pops a pulse into the pipe. Separation time between pulses is the major factor in all exhausts. It is why you cannot turn a 3 cylinder engine at a higher speed and make it sound like a 4 cylinder, or a six, or an 8. It is why they all sound different. Putting more cylinders on the same pipe eventually causes the pulses to run together, to the point that an 8 or 12 has almost no distinguishable pulses at all.
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Today's Featured Article - Product Review: Kreem Brand Fuel Tank Liner - by Staff. This condition has occurred on a few machines that we have had and fortunately we were able to borrow the technique used at the local motorcycle shop. The product that we have used is called Kreem thouh there are others on the market, this one was recommended and available. This particular product is sold in three parts, a bottle of etch, dryer, and sealer. We were fortunate enough to start the process with stern warnings from those that had used this type of product before. The horror
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