JCB Dieselmax
motor vehicle
The JCB Dieselmax is a streamliner car designed for the purpose of breaking the land speed record for a diesel-engined vehicle.
The car was built for JCB, a British multinational equipment company. As of 2018, the car holds the world diesel-powered land speed record, having been driven to over 350 miles per hour (560 km/h) by Wing Commander Andy Green in 2006.
Design
The car is powered by two specially-tuned versions of the production JCB444 powerplant, developing up to 560 kW (750 bhp) each (over five times the power output of the production version with 6 bar (87 psi) of boost) and featuring four cylinders and 5 L (310 cu in) of displacement, accompanied by two stage turbochargers, intercooler and aftercooler. One of the dual engines drives the front wheels while the other drives the rear. Each engine is rev-limited to 3800 rpm.
As the size of the car prohibited meaningful wind tunnel testing, the streamlined shape of the car was refined entirely through the use of computational fluid dynamics by MIRA Ltd, which has enabled the car to obtain a very low coefficient of drag of only 0.147 and a CdA value (drag coefficient × frontal area) of only 0.129 m2 (1.39 sq ft). The fuel tank, which holds only 9 L (2.4 US gal), is located directly behind the carbon fibre cockpit. The fully laden weight of the vehicle, including fuel, oil, ice, water coolant and the driver, is slightly less than 2,700 kg (6,000 lb).
The chassis was designed and built by Coventry-based engineering company Visioneering for JCB, with engine development undertaken by Sussex-based Ricardo.
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This entry incorporates text from “JCB Dieselmax” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.