Cold Fussion wrote: chip engineer wrote:
Sevach wrote:And here is the Toyota.
With the engine contributing 368 kW (494 hp) and the hybrid system contributing the same, combined power for the TS050 is 736 kW (987 hp)."
Where did they get those numbers from since they aren't apart of the quotes from the team. The TS040 was always quoted as having around 1000 hp so does this mean the new turbo charged engine is only as efficient as the old NA engine? It also seems strange that they now say the a DI turbo engine is the way to go yet not 1 or 2 years ago the Toyota engine guy for the TS040 was saying that NA engines can be made as efficient as turbo engines, so what has changed? At least if nothing else, it is1000 hp for 33% longer.
The same power number (~490hp) appears in this article:
http://www.racer.com/wec-le-mans/item/1 ... lmp1-racer
"The new powerplant, which replaces the 3.7-liter normally-aspirated V8 of 2014-15, has a 90-degree vee angle, is a 2.4 liters' capacity and rated at 493hp.
Toyota Motorsport GmbH technical director Pascal Vasselon said: "With the fuel available and taking into account structural considerations, it was a natural step for us to move from a V8 to a small-capacity V6."
The announcement that Toyota would be switching away from normally-aspirated V8 was made at the Le Mans 24 Hours last year. That followed the dramatic outpacing of last year's TS040 Hybrid by its rivals from Audi and Porsche in the Spa WEC round last May.
Vasselon explained that the "development rate and the development potential of a turbo is a bit higher," and "we understood after Spa that we should have made the switch for '15".
"A normally-aspirated V8 can provide good peak efficiency, but in a narrow rev range," he said. "The turbo is able to be much more robust and more consistent in terms of peak fuel efficiency with rpm, temperature and ambient pressure.""