The Zytek ZRS03 engine is a 3.4-litre normally-aspiratedV8racingengine, developed and produced by Zytek for Formula V8 3.5, a series 1st-tier division for World Series by Renault. The ZRS03's rev-limit to 9,500 rpm and produces its power output about 530 hp (395 kW) and torque about 447 N⋅m (330 ft⋅lbf). The ZRS03 was introduced on 24 August 2011.[1] The ZRS03 engine running on Elf LMS 102 RON fuel.
Starting from 2012 season, the Formula Renault 3.5 Series adopted a new engine; a 3.4 litre V8 engine producing 530 BHP at 9,250 rpm, and 330 lb-ft (440 N.m.) of torque at 7,250 rpm, developed by Zytek.[2] The cars have 50 more horsepower than previous season's 3.5 litre V6 Nissan VQ35 unit; which produced 480 bhp, and had a rev limit of 8,500 rpm. and lost 15 kg (33 pounds) of weight.[3]