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Issue 37: March/April 2009 Issue 38: May 2009 Race Engine Technology 23 www.highpowermedia.com THE COMMUNICATIONS HUB OF THE RACING POWERTRAIN WORLD USA $20,UK £10,EUROPE e 15 ISSUE037 race engine TECHNOLOGY MARCH/APRIL 2009 www.highpowermedia.com MARCH/APRIL 2009 FORDFR9CUPV8 •DYNOSURVEY •VALVES •POWERTECV8 •125 ccKERS •VALVESPRINGS (2/APPENDIX) •CIRCLIPS • JOHNFORCE •AETC •ASI John Force: FORDBOSSPOWER FORD NASCAR EXPOSÉ Inside the new FR9 DYNAMOMETER SURVEY All the options POWERTEC HAYABUSA The I4 and the V8 derivative 00RETMA09COVER.indd 1 16/3/09 17:53:49 THE COMMUNICATIONS HUB OF THE RACING POWERTRAIN WORLD ISSUE038 race engine TECHNOLOGY MAY 2009 www.highpowermedia.com MAY 2009 PMETRUCK • LEMANS 2009 •PUMPS •VALVESPRINGS •BTCCEMISSIONS •RF85 •BMW MarkSmith: PMETRUCKPOWER WINNING TRUCK POWER PME Chevrolet analysed VALVE SPRING INSIGHT Engineering to win BATTLE OF LE MANS The 2009 prototypes USA$20,UK £10,EUROPE e 15 00RETMAY09COVER.indd 1 10/5/09 21:12:31 In Conversation: John Force He helped conceive Ford’s most powerful race engine ever and now he personally tames its circa-8000 horsepower… Dossier: NASCAR Ford FR9 An in-depth profile of the new generation NASCAR Cup en- gine from Ford, which starts racing later this season Motorcycle: 125 CC KERS A 125 cc Grand Prix motorcycle beat Formula One to the use of a Kinetic Energy Recovery System (KERS) in racing Focus: Circlips Easily overlooked, circlips are the key to piston pin security Survey: Dynamometers An introduction to race engine performance measurement, from traditional water brakes to active electric dynos Focus: Valves The poppet valve is still supreme in the race engine world Special Investigation: Valve Springs (Pt 3 of 4) Professor Blair continues an insight into tapered springs offer- ing design considerations Dossier: Powertec V8 We look at the development of the Suzuki Hayabusa into an affordable V8 for racecars Dossier: PME Truck V8 The independent engine builder who has become the NASCAR Truck series Engine Builder of the Year 2008 Challenge Of: Le Mans What the 2009 Le Mans 24 Hours will reveal about the state of Prototype engine technology Focus: Pumps Effectively an internal combustion engine is a pump, so why should it need to be surrounded by ancillary ones? Motorcycle: Saving Costs The cost of running an international motor sport team has continued to rise almost unchecked Special Investigation: Valve Springs (Pt 4 of 4) The final part of our in-depth look at valve springs Techno Topic: BTCC Emissions The BTCC undertook its own investigation into the CO 2 emissions of its cars. Tom Sharp reports Focus: Valve Springs Tom Sharp discusses the essential criteria behind the efficient design of a racing valve spring Insight: RF85 How the right surface treatment can make all the difference