Renault makes heavily upgrade engine for US Grand Prix
We learned from various media source, that Renault will use the bulk of their 12 tokens for an updated engine that is set to be accessible completely for Red Bull Racing and not Toro Rosso.
Renault updates mainly with the internal combustion engine (ICE) and some minute changes to the turbo. Most importantly, the new Power Unit has passed a full cycle on the dyno, which guarantees it’s reliability.
The French manufacturer will make the previous spec, used in Russia, available should Red Bull decide against using the upgraded engine.
It is understood Renault’s other customer Toro Rosso, which is close to a contract to use 2015-spec Ferrari engines next year, will not run the Renault upgrade at Austin.
Renault will permit Red Bull to make a decision whether they will use it or not, if do, then they will get a Grid Place Penalty for the US Grand Prix.
