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Issue 23: June/July 2007 Issue 24: August 2007 Race Engine Technology 15 www.highpowermedia.com THE COMMUNICATIONS HUB OF THE RACING POWERTRAIN WORLD USA $20,UK £10,EUROPE e 15 ISSUE023 race engine TECHNOLOGY JUNE/JULY2007 www.highpowermedia.com JUNE/JULY 2007 JUDDGV5.5V10 •VALVESPRINGSFORMOTOGP •SMARTFIRE •HONDAECORALLYCAR •MOTOGPSLIPPERCLUTCHES •SURFACEPREPARATION •ZYTEK • IREDNASCAR ClaudeGuillois: MAKINGTHEDIESELROAR JUDD 5.5 LITRE V10 Bigger bang for Le Mans MOTOGP VALVE SPRINGS Air or steel for the 800cc runners? NASCAR 2007 The Cup, Busch & Truck engine builders 00RET JUNECover.indd 1 11/6/07 09:54:00 THE COMMUNICATIONS HUB OF THE RACING POWERTRAIN WORLD USA$20,UK £10,EUROPE e 15 ISSUE 024 race engine TECHNOLOGY AUGUST 2007 www.highpowermedia.com AUGUST2007 AUDIV12TURBO-DIESEL •LEMANS2007 •VANCE&HINES •CONRODS •F12007 •ENGINEEXPO2007 •DESMODROMIC AUDI V12 TURBO-DIESEL Inside the Le Mans winner FORMULA ONE 2007 The 2.4 litre V8s at 19,000 rpm DESMO IN MOTOGP Ducati’s winning edge? ByronHines: HARLEY-DAVIDSONWARRIOR 00RETAUGCover.indd 1 23/7/07 13:33:00 Report: Indianapolis 500 Anne Proffit discusses the impact ethanol had on the Brickyard’s 500-mile classic Insight: Valve Springs for MotoGP Steel coils versus gas as the 800s rev higher Short Take: Smartfire Combustion sensing in the real world Insight: Honda Eco Car Rallying a green hybrid ‘future’ car Profile: Judd V10 Inside EDL’s powerful Le Mans challenger Motorcycle: Slipper Clutch How it impacts on MotoGP performance Focus: Surface Preparation How the suppliers view current and future tech Supply Chain: Zytek How the renowned specialist works with its suppliers Expo News from suppliers to race engine builders IRED: NASCAR The Cup, Busch and Truck engine builders Insight: Formula One 2007 Ian Bamsey assesses the mid-season state of the art in powertrain technology Report: Le Mans How the 24 Hour race engines fared Motorcycle: Desmodromic Neil Spalding assesses Ducati’s continuing use of desmodromic valve actuation Supply Chain: Vance & Hines How the Harley-Davidson specialist works with its suppliers Profile: Audi V12 Turbo-Diesel Inside the pioneering double Le Mans winner Focus: Con Rods Glen Smale discusses race engine con rod technology with specialist manufacturers from around the world Letter From: Engine Expo New and refreshed technology on show Grid The Race Engine Technology world Expo News from suppliers to race engine builders