Does anyone know how spark ignition ICE efficiency would be expected to vary with ambient temperature?
I have a Toyota Prius and notice the MPG suffers ~10% drop in cold weather even after warm-up. This could be due to many factors, but just wondered if the above could be one of them.
[My own...
(This point came up in a previous thread but thought this deserved a new thread since there were no takers in the original - Mazda rx8 wankel efficiency etc)
GraviMan said:-
"Having seen carbon fibre reinforced aluminium pistons (I think they were cast in an oxygen free environment), I feel...
Looking at the fuel consumption of the rx8 in relation to the power output, it seems to be comparable with piston engine sport cars of similar (high) performance.
Doesn't that suggest that say a single rotor version of half the output (say 110hp) but in average use having a wider open throttle...
