ORIGINAL: basimpsn
ORIGINAL: Mavrik!
ORIGINAL: marquisvns
Thank you Basil!
Like I told Basil, the 180 does have the same combustion chamber and injectors as well as the peak RPM as the 170, but that's where the similarity ends, the entire set of aerodynamic components is different, from compressor wheel down to the exhaust nozzle. The 180 will enjoy better fuel efficiency as well.
Barry
If same combustion chamber and injectors, how can fuel efficiency/consumption improve?
Mav
I guess because other 180 class engines run a higher RPM to get the same power. Just my opinion but I could be wrong
Not quite, both 170 and the 180 have the same peak RPM as well as throttle curve. After reviewing more data from the factory, at full throttle 180 uses only 20 to 30cc more than the 170, perhaps for the thrust difference 180 offers slightly better efficiency...
Barry