Similar to the LS9 small-block V-8, GM integrates the intercooler of the LF3 V-6 inside the V of the engine instead of mounting it remotely. That reduces compressed-air travel and shaves turbo lag to minimal levels. (See related story: ...
Takeaways from this year’s competition: Direct injection and forced induction remain extremely popular; diesels still hold a considerable fuel-efficiency edge over gasoline engines; and there is a future for pushrods.