Introduction The Subaru EJ204 was a 2.0-litre horizontally-opposed (or ‘boxer’) four-cylinder petrol engine with double overhead camshafts. The naturally aspirated E204 engine was initially introduced in the 2005 Subaru GD/GG Impreza and 2006 Subaru BL/BP Liberty as a more powerful alternative to the single overhead cam EJ202 engine, but effectively replaced the EJ202 when the […]
Category: Engines
Subaru EJ20K Engine
Introduction Subaru’s EJ20K was a turbocharged, 2.0-litre horizontally-opposed (or ‘boxer’) four-cylinder petrol engine. In Australia, the EJ20K engine powered theSubaru GC/GM Impreza WRX from November 1996 (for the 1997 ‘model year’ or MY97) to 1998. For the Subaru GC/GM Impreza WRX, key features of the EJ20K engine included: Die-cast aluminium block and cylinder head; Double […]
Subaru EJ20X & EJ20Y Engines
Introduction The Subaru EJ20Y and EJ20X were turbocharged, 2.0-litre horizontally-opposed (or ‘boxer’) four-cylinder petrol engines. For Australia, the EJ20X engine was introduced in the 2003 Subaru BL Liberty GT and mated to a five-speed automatic transmission; the EJ20Y was subsequently introduced in 2004 and had a five-speed manual transmission. The EJ20Y and EJ20X engines were […]
Subaru EJ20G Engine
Introduction Subaru’s EJ20G was a turbocharged, 2.0-litre horizontally-opposed (or ‘boxer’) four-cylinder petrol engine. For Australia, the EJ20G engine powered the GC/GM Impreza WRX from 1994 to 1996; key features of the EJ20G engine included its: Die-cast aluminium block and cylinder head; Double overhead camshafts (belt-driven); Four valves per cylinder; Mitsubishi TD05 turbocharger; Air-cooled intercooler; and, […]
Subaru EJ20J Engine
Introduction Subaru’s EJ20J engine was a 2.0-litre, horizontally-opposed (or ‘boxer’) four-cylinder petrol engine. This article considers the naturally aspirated, EJ20J Phase I engine as it was supplied in Australian-delivered vehicles, including the 1997-98 Subaru SF Forester. EJ20J block and crankcase The Subaru EJ20J engine had an aluminium alloy block with 92.0 mm bores – with […]
1.5 SkyActiv-G: Mazda PY-VPS & PY-VP (RS) engines
Introduction Mazda’s P5-VPS and P5-VP (RS) were 1.5-litre four-cylinder petrol engines. Marketed under Mazda’s ‘SkyActiv’ label, the P5-VPS was first offered in the Mazda DJ Mazda2 (in standard V-P5 and higher-output F-P5 forms), followed by the P5-VP (RS) in the Mazda ND MX-5 from 2015. For simplicity, this article will refer to these engines generally […]
2.0 SkyActiv-G: Mazda PE-VPS engine
Introduction Mazda’s PE-VPS was a 2.0-litre four-cylinder petrol engine that was marketed under the ‘SkyActiv’ label and first introduced in 2011 in the Mazda BL Mazda3 SP20 SkyActiv. Since then, the PE-VPS engine has been deployed in the Mazda KE CX-5, Mazda BM Mazda3, Mazda CX-3 and Mazda ND MX-5(see table below). For the purposes […]
2.5 SkyActiv-G: Mazda PY-VPS & PY-VPR engines
Introduction The PY-VPR and PY-VPS were 2.5-litre petrol engines offered with and without Mazda’s ‘i-ELOOP’ brake energy regeneration system, respectively. Marketed under the ‘SkyActiv-G’ label, the PY-VPS engine was introduced in the Mazda KE CX-5 and subsequently powered the GJ Mazda6. From 2013, the PY-VPS engine powered the BM Mazda3 SP25. For simplicity, this article […]
1.5 SkyActiv-D: Mazda S5-DPTS & S5-DPTR engines
Introduction The S5-DPTR and S5-DPTS were 1.5-litre turbo-diesel engines that were offered with and without Mazda’s ‘i-ELOOP’ brake energy regeneration system, respectively. Marketed by Mazda under its ‘SkyActiv-D’ label, the S5-DPTS engine has been available in Australia in the Mazda CX-3. For the purposes of this article, the S5-DPTR and S5-DPTS engines will also be […]
2.2 SkyActiv-D: Mazda SH-VPTR & SH-VPTS engines
Introduction The SH-VPTR and SH-VPTS are 2.2-litre turbo-diesel engines that are offered with and without Mazda’s ‘i-ELOOP’ system, respectively. Marketed under the ‘SkyActiv-D’ label, the SH-VPTR and SH-VPTS diesel engines effectively replaced the 2.2-litre MZR-CD R2 2008 engine. In Australia, the SH-VPTR and SH-VPTS engines have been offered in the Mazda KE CX-5, GJ Mazda6 […]