1.8 TFSI I4 160 hp (119 kW) - 170 hp (127 kW)

Configuration
1798 cc water cooled inline 4, bore 82.5 mm/stroke 84.1 mm
Head
9.6:1 compression ratio, toothed chain driven camshaft, continuous adjusting intake
Block
88 mm cylinder spacing, 33 kg grey cast iron (GJL 250)
Crankcase
two toothed chain driven counter-rotating balancing shafts suppressing second degree free inertial forces and oil-pump
crankshaft
eight counterweights, 58 mm diameter main bearings
Fuel system
Gasoline, Fuel Stratified Injection, up to 150 bar, six-hole injectors, high-pressure pump driven by a fourfold cam on the exhaust camshaft, stainless steel high-pressure lines, dual injection at the admission and compression stroke
Aspiration
Borg Warner K03 watercooled turbocharger, intercooler, charge movement flaps controlling combustion chamber air movement
exhaust
ceramic primary catalytic converter and ceramic close-coupled catalytic converter
Output
118 kW (160 PS) from 5,000 to 6,200 rpm, 250 Nm from 1,500 to 4,200 rpm, 165 Nm at 1,000 rpm
125 kW (170 PS) from 4,800 to 6,200 rpm, 250 Nm from 1,500 to 4,800 rpm, in the Audi A5
application
2006, Audi A3,Audi A4,Audi A5,SEAT LEON,SEAT ALTEA XL,SKODA OCTAVIA 2
Reference
Audi AG (2006-09-27). Sporty Dynamism, Superb Comfort: The Audi 1.8 TFSI. Press release.
source
of the German engine paper mtz, press release 11/2006:"Der neue Audi 1.8TFSI-Motor"