So let me just play devils advocate and throw this in here.
I designed my intake manifold to be compact, lightweight,
and fit into the cowl without any contusions or bumps. I designed a compact
tangential muffler, and a secondary muffler, for light weight and suppression
of the noise. No effort to ‘tune’ on either end.
The result is that I get a very flat torque curve, and about
90 HP per rotor at 6300, using the 9.7 turbo rotors in a NA engine (actual dyno
data). It is also one of the quietest rotarys around and the exhaust
system is still solid and sound after 180 hrs of operation.
No; I’m not bragging – and I don’t doubt
that a few more HP could be squeezed out over a small rpm range with tuning. The
point is simply – how much time and effort do you want to put into the misty
netherland of tuning the intake and exhaust? Maybe focus on lightweight
and durable design.
Just a thought,
Al G