I would agree, yes it worked out to be allot more simpler running 2 x 2" runners than playing with 4 in my opinion and easier to manufactur etc From modifying my engine from a not so good 6 port intake to a simple 2 port intake I gained a good 30-40 hp and 15 k top end The noise also isn't that bad on my renises as I've attached a custom built hotdog underneath with inox baffling which works well
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Trying to ensure I have a complete knowledge before I make my decision,
The P port as shown for the website is exactly what we are looking for. Straight forward power at high rpm. The noise is a factor of energy output which is the same.
If I tune a 4 port runner system and get x amount of air into the engine I give y amount of fuel and I have z amount of power and engine exhaust/noise to handle.
If I use a P port and get x amount of air and give y amount of fuel it is the exact same z output. It was just easier to get x amount of air into the system.
Or am I completely off base.
Bob,
One thing that everyone should get clear is that for aircraft PPorts are almost always superior. At higher RPMs. Also Pports will idle just fine. Good balance and vibration control are the key to good idle. The engine won't make a lot of power at low rpm but that isn't a problem for an aircraft. The rotary makes a better aircraft engine than a car engine!
Bill Jepson
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