RACE ENGINE TECHNOLOGY 136 January 2022

• Intro: THE EDITOR - Success in a motorsport series that bans scope for engine development relies on exceptional engine build and operation
• Grid: IN THE NEWS - How Audi is contesting the Dakar Rally using electric propulsion, Ricardo continues its Formula E transmission deal with DS Performance, and more…
• Opinion: NHRA TOP FUEL PERFORMANCE IN 2021 - Anne Proffit gets some inside gen on what it takes to get – and stay – at the head of the Top Fuel pack
• Dossier: AUDI R4 TFSI DTM - Wayne Ward is given unprecedented access to the design and development details of this lean-runner, which dominated the DTM in recent times
• RACE POWER UNIT OF THE YEAR 2021 - We reveal the category winners and overall Race Power Unit of the Year 2021, as judged by a jury of peers
• Focus: REVERSE ENGINEERING - Recreating components that are no longer available has an obvious attraction for historic motorsport, writes Wayne Ward, who explains the processes involved
• Holeshot: SCREW SUPERCHARGERS IN PRO MOD - Luke Robinson reports on how including screw superchargers in Pro Mod might affect the balance of performance with its other power adders
• Show report: PMWE 2021 - Specialist suppliers were once again able to display their wares to professional powertrain engineers at this well-timed expo. Ian Bamsey reports
• Focus: OIL PUMPS - Matt Grant considers the issues around maintaining the correct oil pressure in race engines
• E-RACE POWER - We look at the work of Balance Batteries, which offers a range of standard products that customers can install themselves
• RACE ENGINE RETRO - Refurbishing the pneumatic return valve system for the 1994 Peugeot A6, we pay tribute to engine development legend Richard Maskin, and how Jondel Race Engines has come up with an Avenger BRM for rallying that’s a match for the Escort BDA