Class 158 DMU Max speed: 90 mph (140 km/h) In service: 1989 - Number in service: 170 trainsets Engine: Cummins NTA855R1, Perkins 2006-TWH or Cummins NTA855R3 Power output: 350 hp (260 kW) or 400 hp (300 kW) per engine Transmission: Voith T211rz or T211rzz hydraulic and Gmeinder GM 190 final drive. Braking system: Disc trainsimcentral.co.uk