I just came back from a drive and I’m wondering why my 3.0L I6 engine which has roughly 385HP is relatively quiet besides a low growl compared to my extremely loud lawnmower which as a tiny 6HP single cylinder? Would the muffler of my car make that much of a difference?
In: Engineering
Yes, the muffler would make that much of a difference.
The sound in the cabin is insulated so you barely hear it but you don’t hear the engine noise outside the vehicle to the degree you hear a lawn mower either. Heck even when the engine bay is open it’s not that loud the exhaust really does make that much of a difference.
Heavy equipment engines, like those found on tractors and bulldozers, do not have said insulation as they are exposed to the air and aren’t as loud as a lawnmower engine because of their exhaust systems.
I once split the exhaust pipe on a car while driving holy hell it got loud. The muffler brings down the sound level from both inside and outside the cabin dramatically.
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