The Skyhawk TD (turbo diesel) will feature a Full Authority Digital Engine Control (FADEC) equipped Thielert Centurion 2.0 liter engine. The DOHC (double overhead camshaft) in-line four-cylinder turbocharged engine develops 155 horsepower, is
I think the 155 horsepower figure is a typo. The Thielert (Centurion) website only quotes 135 HP for this engine. The original engine was 1.7 litre but due to reliability issues the capacity was increased to 2 litre and the output remained the same.
Will be interesting to see how the C 172 performs with the diesel engine. The Twin Stars are not stellar performers from what I have seen and heard.
The performance figures originally quoted by Thielert for the PA28/C172 conversions were done with smoke and mirrors to get the 135 HP engine to match the 160 HP Lycoming.