I was driving my gasser today and enjoying the exhaust drone on the freeway. Made me think about what exactly is it that causes noise out the exhaust anyway.
I know different exhaust systems and mufflers will sound different, as well as number of cylinders, engine size and gas vs diesel, but what is the root source of the noise?
From my understanding exhaust valves will typically open while the piston is still on the downstroke during the combustion stroke. Is combustion still occuring on as the valve opens and thats what you hear? or is it the physical sound of the exhaust gasses passing the valve? Why does a diesel sound different than gas? And why are rice burners so damned annoying -:t?
I know different exhaust systems and mufflers will sound different, as well as number of cylinders, engine size and gas vs diesel, but what is the root source of the noise?
From my understanding exhaust valves will typically open while the piston is still on the downstroke during the combustion stroke. Is combustion still occuring on as the valve opens and thats what you hear? or is it the physical sound of the exhaust gasses passing the valve? Why does a diesel sound different than gas? And why are rice burners so damned annoying -:t?