How effective is the engine compartment sound insulation?
2 Answers
Engine compartment sound insulation can effectively reduce noise. Here are the relevant details: 1. Engine sound insulation compartment: When engine noise is excessive, performing sound insulation in the engine compartment is an effective method to reduce noise. Installing a firewall sound insulation in the engine compartment can block engine noise, especially when driving at high speeds, where the sound insulation effect becomes more noticeable. Performing full-vehicle sound insulation yields better results but at a higher cost. 2. Benefits: Engine compartment sound insulation helps improve the audio quality of the car's entertainment system, effectively protects the car's paint, enhances the performance of the car's air conditioning, and reduces fuel consumption.
I've driven various cars over the years and found that engine compartment sound insulation makes a huge difference. With older cars, the constant droning noise, especially on highways, causes ear discomfort and even headaches during long drives. Newer models with proper soundproofing, like high-efficiency fire-resistant acoustic foam, significantly reduce noise levels. Contributing factors include vehicle design—luxury cars outperform economy models—and engine types, where turbocharged engines tend to be quieter. If noise increases, check for aged or damaged hood seals, or simply apply DIY acoustic foam (costing just tens of RMB). Regular maintenance like dust removal ensures seal integrity and prevents sound leakage. A quiet cabin enhances comfort and safety by allowing clearer perception of external warnings. Always test-drive to assess noise levels across road conditions before purchase.
