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
No problem Barry, Thanks again