Quote:
Originally Posted by GRU
arn't regular engines (in our cars) only 30% efficient, which would mean this Veyron engine is 33% efficient?
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Well obviously efficiency depends on speed and load. 33% efficiency at maximum power is *very* high.
At 100% load I know my 1ZZ-FE is most efficient at 3200rpm or so, with a BSFC of 270g/kWh which is about 31% efficiency. Car engines usually have peak BSFC somewhere between 220g/kWh and 250g/kWh. Most of the direct injected engines are peaking around 230g/kWh, which is about 36% thermal efficiency.