So a quick question:

If you have a Renesis based single rotor with two exhaust ports each pulsing at the same time, what is the best arrangement for the headers?

The best length for the primary is going to be determined by the rpm - so should be the same as for any other rotary.  But is it best to run two independent pipes and concentrate on minimizing back pressure, or, if you were to make one primary twice the length of the other one and then join into a single pipe perhaps you get some scavenging?

How do traditional `bunch of bananas' headers compare with VAM/tangential in terms of engine performance?

Lynn, Leon ???

Cheers
Mike