121 September/October 2019

• Intro: THE EDITOR - Battery-electric Le Mans Prototypes that can be recharged as quickly as refuelling a current LM P1 car present intriguing prospects for the 24 Hours 

• Grid: IN THE NEWS - Plan unveiled to race an electric Prototype with a two-minute battery recharge, Ginetta switches to AER V6 turbo power, Porsche’s Dr Ferdinand Piech remembered, and more…  
• In Conversation: REMI TAFFIN - Renault’s F1 team engine technical director gives Ian Bamsey an insight into the French marque’s current Grand Prix power unit 
• Report: BRITISH GRAND PRIX 2019 - Ian Bamsey looks at how Formula One power units were shaping up come the midpoint of this year’s Grand Prix season 
• Dossier: OUTKAST RACING ENGINES RY45 LATE MODEL V8 - Mike Magda reports on how this engine was rebuilt to suit the needs of a rookie driver 
• Focus: TRANSMISSIONS - The advent of electric and hybrid drivetrains has created a need for transmissions for new and diverse markets, writes Matt Grant 
• Short Take: EDL JUDD DB - Ian Bamsey looks at the largest displacement engine in the British Hillclimb Championship. With research by Stewart Mitchell 
• Challenge Of: F1H2O WORLD CHAMPIONSHIP - Ian Bamsey explains how tuning makes all the difference when every team in this series is using the same engine. With research by Stewart Mitchell 
• Short Take: TEAM BATH FORMULA STUDENT KTM TURBO - Ian Bamsey finds out how this university racing team graduated to a single-cylinder motorcycle race engine. Research by Stewart Mitchell 
• Race Engine Digest: SUZUKI NHRA PRO STOCK MOTORCYCLE - Ian Bamsey investigates WAR’s application of fuel injection to the NHRA Suzuki I4. Research by Stewart Mitchell 
• Report: ENGINE EXPO 2019 - Ian Bamsey finds much of interest at the road and race powertrain technology crossover that is Stuttgart’s yearly Engine Expo 
• PS: FOUR-STROKE VERSUS TWO IN F1H2O - Four-strokes are on the ascendancy in powerboat racing, but the changeover is not without its issues