After seeing the Jabaeru and Rotax 912 with Dual Bings on them, I'm investigating the use of a pair of SU carbs on the 2180 with the traditional oil dampened metal piston. This would provide shorter runners to the input ports, keeping the A/F mixture more complete, and the cilynder combustion and temperature more balanced (as well as other benefits). I have had a GREAT experience wiht the Hitachi SU's on a Datsun 1600 roadster. Some of these come capable of adjusting the jet position to provide leaning. Anyone want to share their opinion/experience?
Glenn Martin KR2 N1333A Biloxi, MS