Leading-Edge Motorsport Technology Since 1990 November 2014 Vol24 No11 www.racecar-engineering.com UK £5.95 US $14.50 RedBullRB10 Adrian Newey’s last F1 car F1 spy technology that YOU could buy Mapping your rivals with all-new software Renault RS34 French Formula 1 power unit – from disaster to victory 9 770961 109104 WORLD EXCLUSIVE! Top secret UK based high tech test facility revealed 11 traordinary All-Fluid Filters 4 DIFFERENT SERIES. MODULAR. .TONS OF OPTIONS 71 SERIES - Our largest capacity filters. 2.47" diameter body, available in two 72 SERIES - Same large-capacity 2.47” diameter body as our 71 Series but lengths. Reusable pleated stainless steel wire elements: 10, 20, 45, 60, 75, 100 or with a 2-piece body that couples together with a Clamshell Quick Disconnect for 120 micron, all with high-pressure perforated support core. End caps quick service. 72 Series uses the same stainless steel elements, mounting (sizes -6 through -20) are available in AN style or Clamshell Quick Disconnect. hardware and end fittings as 71 Series. Options include: 15 PSI differential pressure by-pass valve; Inlet end caps with -10 Female ORB auxiliary port for temperature probe, secondary inlet or bypass for a pressure regulator; Outlet end caps with two female 1/8" pipe differential pressure gauge ports to measure pressure drop across the filtering element. 71 SERIES MULTI-STACK - FAILSAFE STAGED FILTRATION Multi-Stack adapter sections allow the stacking of two or more 71 Series bodies, long or short, so you can combine a variety of filtration rates or backup elements. Use a coarse micron screen element to filter out large debris upstream, followed by a tighter micron second-stage element to get smaller contaminants. 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Bodies are available with AN-style end caps, sizes -4 through -12, in heavy or lightweight wall versions. 70 Series filter elements SPACE SAVER DRY SUMP - Same space-saving size, these dry sump come in two varieties: pleated cellulose (10 or 20 micron) or reusable pleated stainless steel filters include a coarse-screen #16 mesh filter that protects your pump wire (10, 20, 45, 60, 75, 100, or 120 micron). Undercut inlet end caps (sizes -4 through -10) in high-volume race applications. offer a maximum weight savings and modern look. 70 SERIES Pleated Stainless Steel or Cellulose Elements Follow us Like us on Instagram on Facebook #XRPracing XRPinc Go to WWW.XRP.COM for ® catalog downloads & new products or contact us for 100-page THE XTREME IN RACECAR PLUMBING color catalog. UNITED STATES XRP, Inc. [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 CONTENTS – NOVEMBER 2014 – Volume 24 Number 11 COVER STORY TECHNICAL 8 Red Bull RB10 33 Consultant The last of Adrian Newey’s cars, and the veteran designer lets rip Understanding the Mumford link with his views of the regulations 37 Databytes How to avoid blowing up your engine COLUMNS 41 Aerobytes 5 Ricardo Divila Team Bath continues its learning experience Why engineers hate working with rubber 44 Tunnel vision 7 Mike Blanchet How a 19th-century railway tunnel could be used for Can Formula 1 sustain the current spending? cutting-edge car development 54 Engine acoustics FEATURES How to map your rivals using YouTube and snazzy software 63 Driver simulation 16 Renault F1 recovery With testing time restricted, simulator training is becoming ever Pulling victory from the jaws of defeat – Renault’s RS34 has more critical to both drivers, and teams undergone a huge development programme this year 69 Danny Boy 23 Renault Sport RS01 Part two of our boy’s electrical simulation techniques Renault launches a new sports car for the modern era 75 Technical update 26 Tuthill Porsche 911 R-GT Doing the loco-Motion British team takes on the FIA to have iconic brand, and rear-wheel 78 Tech discussion drive returned to the World Rally Championship Experts discuss Land Speed Record car design 80 Tech discussion Formula E is Go! And we have a look at it. BUSINESS NEWS & PEOPLE 82 Industry News Mercedes supports relaxation of F1 engine freeze 90 Racecar People Brabham targets return to Formula 1 via open source project 94 Products All the latest from the racing world 96 Autosport International Show Traditional skills still required in today’s modern world 98 Bump Stop Subscribe to Racecar Engineering –findthebestoffersonline www.racecar-engineering.com Contact us with your comments and views on @RacecarEd or on Facebook.com/RacecarEngineering NOVEMBER 2014 www.racecar-engineering.com 3 STRAIGHT TALK – RICARDO DIVILA The black art of rubber Non-linear, non-isotropic, heat and load sensitive, no wonder engineers do not like tyres xion was expelled from Olympus and blasted Natural rubber consists of polymers of the then generates more temperature which increases with a thunderbolt. Zeus ordered Hermes to organic compound isoprene. Forms of polyisoprene pressure in a self reinforcing loop.) Ibind Ixion to a winged, fiery wheel that was used as natural rubbers are classified as elastomers. The other difficult characteristic of tyres is that always spinning. This is either traction control Rubber is harvested mainly in the form of the latex given all these variables, and the fact that it is failure, or too hard a compound… from trees (collecting the sap by tapping). damped only by the hysteresis of the rubber, trying ‘The time has come,’ the Walrus said, Natural rubber is used extensively in many to spring and damp the car is made very difficult To talk of many things: applications and products. In most of its useful as the loads from the chassis will obligatorily Of shoes – and ships – and sealing wax forms, it has a large stretch ratio and high resilience, go through the tyre...unless you have got your Of cabbages and kings and is extremely waterproof. This comes in useful springing and ride height very wrong. Skating on And why the sea is boiling hot to make the contact patch‘co ’into small as erities the bottom of the chassis reduces your grip level And whether pigs have wings.’ in the track, and enable considerably. The subject this month is the most effective a more than unity The use of different Tyres nowadays are not so racing product of all – rubber. Getting a car to go coefficient of friction. much on the edge as in the two seconds a lap faster is a difficult and expensive The stretch, resilience compounds on each days of “gumball” qualifiers, proposition, whereas you can bolt three seconds a and waterproofing is that lasted just one lap if the lap very easily with a different set of tyres. also essential in another corner of the car is compounding was right. The The quote ‘I don’t care what it is as long as application for latex, the driver had to do the out lap round and black’ alludes to the fact that the black humble condom, which not unknown… slowly so as not to overheat the is only there because of the carbon black added is used in quite stressful compound right up to the last to avoid ultraviolet light degradation of the latex conditions (well, at least if corner, before getting on it. and the elastomer used in racing tyres, which can you are doing it right). Knowing how to use contain little natural rubber as tapped from a tree. The natural shape your qualifying tyre given Of all the ingredients on a car, this is the most a canvas bag wants to those conditions is not easy, elusive one, and one engineers do not like much. It assume is a circular shape as having the opportunity is non-linear, non-isotropic, heat and load sensitive. (as old tyres used to be) to test one lap tyres came The base components used to be a natural very the racing tyre is a fat few and far between. With green element, the sap from the Hevea brasiliensis cylinder, albeit not to Pier Luigi Martini at Minardi tree, cured and vulcanised and applied over a the dimensions we have we capitalised on that, as woven canvas bag. seen in the past, but only having tested over 200 sets of Natural rubber is still a component of tyres but because of regulations. qualifiers for Pirelli gave us the synthetic rubber is made by the polymerisation To keep this shape, opportunity to put Minardi of petroleum-based precursors called monomers. and to deflect laterally on the front row at Phoenix, The most prevalent synthetic rubbers are and vertically at the right alongside Senna in the styrene-butadiene rubbers (SBR) derived from the amount for maximum McLaren. Pier Luigi was simply copolymerisation of styrene and 1.3-butadiene. contact patch, is an art Tyres are difficult enough to engineer as it is.