HWA AFR Turbo engine

The HWA AFR Turbo is a prototype four-stroke 2.0-litre single-turbocharged inline-4 gasoline racing engine, developed and produced jointly by HWA, in partnership and collaboration with Aston Martin, for Deutsche Tourenwagen Masters. The HWA inline-4 is engine rated at 610 + 30 hp (455 + 22 kW), with extra available on push-to-pass, and drives the rear wheels of the Vantage through a 6-speed semi-automatic transmission.^[1][2][3][4]

HWA AFR Turbo
Overview
Manufacturer	HWA (in partnership with Aston Martin)
Production	2019-2020 (DTM)
Layout
Configuration	Inline-4 cylinder
Displacement	2.0 litres (122 cubic inches)
Cylinder bore	86–90 mm (3.39–3.54 in)
Piston stroke	Free but typically approximately between 86–90 mm (3.39–3.54 in)
Cylinder block material	Die cast steel or aluminium alloy. Machining process from a solid is not permitted
Cylinder head material	Die cast steel or aluminium alloy
Valvetrain	DOHC 16-valve (four-valves per cylinder)
Compression ratio	15:1
Combustion
Turbocharger	Single-turbocharged by Garrett Advancing Motion with 3.5 bar (51 psi) of turbo boost pressure
Fuel system	Bosch HDEV6 350 bar (5,076 psi) central high-pressure gasoline direct fuel injection. One direct injector per cylinder fed by an engine-driven high-pressure fuel pump
Management	Bosch Motronic MS 7.4
Fuel type	Aral Ultimate 102 RON unleaded racing gasoline
Oil system	Dry sump. Total Quartz 9000
Cooling system	Single mechanical water pump feeding a single-sided cooling system
Output
Power output	610 + 30 hp (455 + 22 kW) (2019) later 580 + 60 hp (433 + 45 kW) (2020-present) including push-to-pass
Torque output	Approx. 650 N⋅m (479 ft⋅lbf) @ 9,000 rpm
Dimensions
Length	600 mm (23.62 in)
Width	697 mm (27.44 in)
Height	693 mm (27.28 in)
Dry weight	187 lb (85 kg) including turbocharger

Applications

• Aston Martin Vantage DTM^[5][6]