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GP Week : Issue 126
FIA confirm 2014 power unit specifications IN the 2014 Technical Regulations published this week, it was revealed that – along with the changes to the engine specifications – F1 cars will have eight forward gear ratios. According to Article 9.6 of the Technical Regulations, “the number of forward gear ratios must be eight. Each competitor must nominate the forward gear ratios (calculated from engine crankshaft to drive shafts) to be employed within their gearbox. These nominations must be declared to the FIA technical delegate at or before the first Event of the Championship.” Because a poor pre-season selection could hamper a driver’s bid for the World Drivers’ Championship crown, the FIA has permitted some leniency with regard to the selection of ratios. “For 2014 only, a competitor may re- nominate these ratios once within the Championship season, in which case the original nomination becomes immediately void,” the Technical Regulations state. “Ratio re-nominations must be declared as a set and may only be effected by the substitution of change gears.” F1 cars to use eight gears from 2014 THE future changes to the Formula One engine specifications have been the subject of much to-ing and fro-ing. Last December, it was agreed that the 2013 engine specifications would see teams using 1.6l 4-cylinder turbo engines, there was discontent amongst the engine manufacturers, some of whom felt pressured to concede to the FIA’s desire to see a greener engine formula. After much discussion, it was announced in Valencia that the change to the engine formula would be put back to 2014, and that cars would be powered by 1.6l V6 engines rev-limited to 15,000rpm, with a focus on energy recovery. But in the Technical Regulations published this week, the FIA laid out strict guidelines governing fuel mass flow, pressure charging, and exhaust gases. According to Article 5.1 .4 of the Technical Regulations, “Fuel mass flow must not exceed 100kg/h.” Article 5.1 .5 states that “Below 10,500rpm the fuel mass flow must not exceed Q (kg/h) = 0.009 N(rpm) + 5.” Pressure charging is governed by Article 5.1 .6, which says that “Pressure charging may only be effected by the use of a sole single stage compressor linked to a sole single stage exhaust turbine by a common shaft parallel to the engine crankshaft and within 25mm of the car centre line. An electrical motor generator (MGUH) may be directly coupled to the same shaft.” Finally – as far as specifications go, at least – following the increased attention on exhaust gases stemming from 2011’s off-throttle blown diffusers, the FIA have tightened regulations governing engine exhaust gases. As of 2014, they “may only exit the cylinder head through outlets outboard of the cylinder bore centre line and not from within the ‘V’ centre.” Additionally, the FIA have altered the rules governing engine starts. From 2014, “It must be possible for the driver to start the engine at any time when seated normally at the wheel and without any external assistance.” 10