A few weeks ago, a guy was telling me about his old car where you had to move a lever in winter to divert warm air into the carburetor, to help the fuel evaporate. He said in winter, it let the car start easier, and in summer it gave better gas mileage, so he kept it that way all the time.
Modern cars don't need this device to start in winter, but now I'm wondering if one might still give better gas mileage during summer.
Preheating the air from 20 C to 100 C with engine coolant would reduce the engine's power by about 22%, but maybe it would give a few % better gas mileage. If I wanted to have full power, I'd simply switch off the flow of hot engine coolant to the preheater.
I have to check my car to see if everything would still work properly if the intake air were heated to 100 degrees C. This is another experiment I'd like to try.
Modern cars don't need this device to start in winter, but now I'm wondering if one might still give better gas mileage during summer.
Preheating the air from 20 C to 100 C with engine coolant would reduce the engine's power by about 22%, but maybe it would give a few % better gas mileage. If I wanted to have full power, I'd simply switch off the flow of hot engine coolant to the preheater.
I have to check my car to see if everything would still work properly if the intake air were heated to 100 degrees C. This is another experiment I'd like to try.