http://www.f1fanatic.co.uk/2013/09/16/f ... s-in-2014/
Pingguest wrote:In that Autosport article it is said that during the engine freeze, 95% of all engine parts were revised. Could anyone explain to me how this was possible? I thought that while the engine was homologated, all engines had to be same to reference unit.
Renault Sport F1 deputy managing director (technical) Bob White said: “A multi-year specification freeze is not really where we think the balance should be.”
“But equally, it shouldn’t be a development free-for-all that would make the necessary investment unaffordable. We’re heading towards year-on-year tightening restrictions and we think that’s a prudent and responsible approach.”
The FIA’s plan for freezing development of the engines calls for 8% of power unit components by weight to be frozen in development by 2015. That will rise to 23% in 2016, 35% in 2018 and 95% the year after that.''
So,It's not set in stone on Monday...Renault could change 92% of the engine during the year.
Is this correct?