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메르세데스-벤츠 AMG GT 수리 사례

C190 (2014-현재) · AMG GT Black Series

2026. 8. 10. 작업

난이도 & 준비물

증상

I was watching " The Perfect Road Trip 2 " by Top Gear, where at some point Richard Hammond is driving a Mercedes A45 AMG . He says that the car develops a whooping 355 BHP, and all that comes from a turbocharged 2.0L engine. I am now genuinely wondering what are the advantages of having a relatively small engine (2000cc) with such a high power output (~350 HP), rather than going for a bigger engine (say 3000cc or more, which is more common to see with around 350 HP). What good is it? I don't think it has something to do with taxes or costs to the end user, since we're talking about a +40K car

처리 내용

There are advantages, but also disadvantages to using a smaller turbocharged engine with a higher power output. The pro's of smaller, turbocharged engines: When not on boost (below e.g. 3000RPM) the engine uses much less fuel. turbocharged engines have a flatter torque curve, meaning they're working closer to optimal level throughout a larger portion of the rev range. The engines weigh less, helping to increase power/weight ratios. They're much easier to customize to get the characteristics you want. You can either have a powerful, high-boosting engine or an economical, low-boosting engine simply by modifying the electronic control unit parameters, e.g. max boost pressure and timing advance. The con's of smaller, turbocharged engines: Turbochargers produce lots of extra heat and stress, significantly shortening the life of an engine. a 3000cc NA engine can easily last for 200 000 miles, but you'll struggle to achieve the same figures in a 2000cc turbocharged engine unless you drive ver