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
There are a few reasons for this that have already been addressed already. But I’d like to also point out that your car is water cooled and your lawn mower is likely air cooled.
Air cooled engines do not have coolant surrounding the cylinders, which helps aid in reducing sound transmission from the explosions.
Ever driven or been around an older air-cooled VW or similar? They’re quite a bit noisier than water cooled engines. Sure, part of that is the lack of extensive exhaust system. But the air/water cooled also plays a large role.
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