ARP Corporate Identity Standards ARP Logo Files White or light backgrounds Black or Dark backgrounds Racecar Engineering Anniversary partners: ARPlogo_Black_2013.ai ARPlogo_White_2013.ai ARPlogo_Black_2013.eps All 12 logo files are ARPlogo_White_2013.eps ARPlogo_Black_2013.jpg embedded as attachments ARPlogo_White_2013.jpg ARPlogo_Black_2013.tif in this PDF. ARPlogo_White_2013.tif ARPlogo_Black_2013.bmp Click the paper clip ARPlogo_White_2013.bmp ARPlogo_Black_2013.png to view and save them to ARPlogo_White_2013.png 25 years as the leading motorsport technology publication your computer. ARP CMYK Colors 5 C: 10 C: 100 C: 100 Volume 25 Volume Y: 100 Y: 0 Y: 0 M: 100 M: 20 M: 0 K: 0 K: 0 K: 0 ARP Pantone Colors Pantone 485 C Pantone Process Blue Coated Pantone Yellow Coated Updated: March 14, 2013 25YEARS OF INSIGHT May 2015 • Vol 25 No5 • SPECIAL ANNIVERSARY EDITION • UK £5.95 • US $14.50 9 7 7 0 9 6 1 1 0 9 1 0 4 IndyCar 0 New aero kits 5 Toyota TS040 TS040 Toyota signal end of spec formula Indycar aero kits aero Indycar NASCAR studies aero May 2015 Nissan GT-R LM NISMO NASCAR fl ow study Toyota TS040 Debate rages as team delays Focus on R&D centre and its Faster and lighter prototype debut to address its issues quest for better aerodynamics takes competition to new level RCE May New_02-ac.indd 1 25/03/2015 11:03 NEW The Dry Sump Vacuum Race Hose ProPLUS Xtreme A high flowing, smooth bore, PTFE tube with external convolutions for flexibility. 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[email protected] tel 562 861 4765 fax 562 861 5503 ® EUROPE JLS Motorsport [email protected] tel 44 (0) 121 525 5800 fax 44 (0) 121 525 4833 THE XTREME IN RACECAR PLUMBING Untitled-60 1 05/03/2015 09:15 CONTENTS – MAY 2015 – Volume 25 Number 5 COVER STORY 25 years and counting 8 IndyCar HPD and Chevrolet introduce new aero kits his year, Racecar Engineering is the spec period was necessary, and make COLUMNS celebrating its 25th anniversary. a compelling case for maintaining the TStarted in 1990 as a magazine relationship with Dallara in the future. 5 Ricardo Divila (it existed earlier in book form), in this We also start our Le Mans coverage, Turns is eyes towards the racing press edition we mark the occasion with and feature the Toyota which continues 7 Mike Blanchet an publication that re ects our broad the trend of developing hybrid Flawed marketing behind F1 power units range of coverage, and provide links technology, while DOME is also part of a to signi cant features run in the last developing story. Just as IndyCar departs FEATURES quarter of a century. Coming soon to from its spec formula, the ACO and FIA our new member’s area on the website, have started the process of taking LMP2 16 Toyota TS040 down that same route, again citing cost Wraps come o new Le Mans challenger www.racecar-engineering.com, will be a download of our favourite IndyCar control. The small manufacturers of both 22 Strakka Dome S103 features, alongside the latest news, blogs chassis and engines will lose another Better late than never for LMP2 challenger and information about our sport. market, and the plan further robs GT3 2016 26 Since 1990, the emphasis in racing engineers of a place to learn their trade. New cars from Mercedes, Audi and Lamborghini has changed rmly from technical Cost control and spec formula have been 32 Glickenhaus exploration to cost control. Whereas it a blight on our racing landscape for a Latest challenger for Nürburgring 24 hours was possible for a revolutionary idea long time now. A more open rule book 37 Infi niti Q50 to be introduced into top ight racing, that leaves room for innovation, a clever Paras take on the British Touring Car Championship now it is much harder. It is still possible, idea to challenge conventional thinking, however, as DeltaWing proved in 2012, can be just as e ective. The Nissan GT-R TECHNICAL a relatively inexpensive programme LM may not work yet, but it o ers just introduced into the world of Le Mans that challenge that the sport needs. 41 Consultant can reap huge rewards, much to the Follow our coverage of the last 25 Mark Ortiz responds to readers’ questions chagrin of the manufacturers that invest years through our back issues, held 45 Databytes tens of millions of pounds. on Zinio and on our app, and visit the Perfecting gasoline direct injection technology This month, we celebrate the fact website to take advantage of our latest Aerobytes 49 that IndyCar has taken the rst, welcome free downloads. VUHL takes to the MIRA tunnel step, away from spec racing in a top-level 52 NASCAR Aero Study racing series. IndyCar o cials say that ANDREW COTTON Editor Understanding stockcar aerodynamics 58 Composites How CFRPs have changed over 25 years 69 Nissan GT-R LM Peter Wright interviews Ben Bowlby and agrees that he is onto something quite clever 76 Danny Nowlan Danny puts the Nissan gures into a computer and returns some surprising results 82 Tech update Manor returns to F1 85 Tech update How many tokens has each F1 manufacturer spent? BUSINESS NEWS & PEOPLE 88 Industry News Ferrari no longer world’s leading brand 94 Racecar People Trevor Carlin interview, and race moves 98 Bump Stop Jaguar’s XJR-12 graced the cover of the fi rst ever edition of Racecar Engineering with the headline ‘Jaguar’s Fighter Bomber’. Today the English marque looks set to return to racing Subscribe to Racecar Engineering – nd the best o ers online www.racecar-engineering.com Contact us with your comments and views on @RacecarEd or on Facebook.com/RacecarEngineering 25YEARS OF INSIGHT 25th MAY 2015 www.racecar-engineering.com 3 ANNIVERSARY ISSUE Contents-ac-2 STAC.indd 3 24/03/2015 18:22 HighHigh Tech Tech | High | High Speed Speed | High | High Quality Quality Pankl Engine Systems GmbH & Co KG A memberPankl of EnginePankl Racing Systems Systems GmbH & Co KG A member of Pankl Racing Systems A-8600 Bruck/Mur, Kaltschmidstrasse 2-6 Phone:A-8600 +43(0)3862 Bruck/Mur, 51 250-0 Kaltschmidstrasse 2-6 FAX: +43(0)3862Phone: +43(0)3862 51 250-290 51 250-0 e-mail:FAX: [email protected] +43(0)3862 51 250-290 www.pankl.com e-mail: [email protected] www.pankl.com PANKL FP RCE MAY15.indd 1 10/03/2015 13:07 STRAIGHT TALK – RICARDO DIVILA ‘He who can, does’ Can the motoring press learn from its past to secure its future? n average we sneeze 125 times a year. the cars and in-depth coverage of most systems maybe more than before, but the internet has This in not to be sneezed at. This is “the and equipment. And the racing correspondents made access to the information that much easier. Ouselessly precise fact” — it’s what you gave an awful lot of coverage to what these cars The demise of print has been decried for more doodle when you need to fill a page but have were doing on track. Presumably other engineers than two decades now, but new ways of financing nothing important to say if you are writing for also had their appetite whetted for competition publications still seems to be in a state of flux – the press with an impending deadline. engineering also. The general drift of the world presumably in the long-term everything will be This in turn reminds me of Shaw, George being what it is, the fourth estate now seems to accessible in the cloud and a universal system will Bernard of that ilk, who said: “He who can, does. He focus on celebrity and motor-racing coverage is no evolve eventually. who cannot, teaches,” in Man and Superman (1903). different, with too many pages dedicated to what So a resounding cheer to a publication that When one uses this quotation, one usually adds drivers are up to, and team politics. covers most forms of motor racing with articles that “And those who know fuck-all write about it.” The yellow page journalism that has taken are specifically geared to the technical side. There is Stating this credo over the years has not over print has obviously left its paw marks on the a big demand out there and the lack of information endeared me to the motoring hacks coming out of the racing teams is either, especially when I mention Reading the situations vacant pages understandable – nobody wants to give that, as their tools are knowledge away any clues that would give an inch and a good working proficiency with provided a valuable insight into what to their competitors, thus making it very the English language, some of them difficult to find out what is current. fell somewhat short of the mark. was going on in the racing world Finding myself in the awkward Chequered history position now of being a visiting Mind you, we are not looking at the past professor at Cranfield University with rose-tinted glasses either. The bane and writing about racing, I stand of most correspondents at magazines is self-incriminated despite plaintive eking out their monthly stipend through negation.