Mercedes PU at 50 per cent efficiency on dyno
13 September 2017 – Mercedes says its 1.6-litre V6 power unit has now reached 50 per cent thermal efficiency on its dyno, delivering 109 more horsepower than its 2014 counterpart.
The current power units were introduced as part of a technical overhaul in 2014 and Mercedes has led the way, having taken 59 wins from 72 Grands Prix, and a clean sweep of titles.
In a technical feature published on its website, Mercedes explained that the V10s, used until the mid-2000s, converted less than 30 per cent of fuel energy into power.
However, by 2014, that had already been increased to 44 per cent, due to the introduction of power units, and progress has taken place in the intervening years.
Mercedes says its M08 EQ Power+ engine is the most powerful it has ever produced, beating the landmark of the V10, which used substantially more fuel in the process.
"Three-and-a-half years after making its debut, the Mercedes-AMG F1 power unit has now achieved a conversion efficiency of more than 50% during dyno testing in Brixworth," Mercedes explained.
"In other words, it now produces more power than waste energy – a remarkable milestone for any hybrid, and especially a flat-out racing engine.
"Compared to 2014, the power output is 109 horsepower greater using the same amount of fuel.
"It's the science of achieving impressive results through detailed and diligent engineering process.
"And this technology is supplied to customer teams for a cost that represents between 5 and 10 per cent of their annual budgets."
Mercedes has used a version of its Formula 1 engine in the Project ONE road car, which was unveiled on Monday, and which will have a thermal efficiency of more than 40 per cent.