Which is More Fuel-Efficient: Cars with or without Turbochargers?

1 Answers
LincolnAnn
07/30/25 12:08am
Cars without turbochargers are more fuel-efficient. Below is the relevant introduction: 1. Turbocharger: A centrifugal compressor and turbine are combined into one unit, called a turbocharger. The main difference from a gas turbine is that this unit does not have a combustion chamber or corresponding system. The turbine operates using the exhaust energy from a reciprocating internal combustion engine, and its centrifugal compressor provides compressed air as the charge for the reciprocating internal combustion engine. 2. Components: The rotor is the key component of a turbocharger. In addition, a turbocharger includes the necessary bearing system for normal operation, lubrication and cooling systems, sealing and insulation devices, as well as fixed parts such as the compressor housing, intermediate housing, and turbine housing.
Was this review help?
5
5
Share
More Forum Discussions

What Causes the Idle Speed to Stay at 1200 RPM and Not Drop?

The reasons why the idle speed stays at 1200 RPM and does not drop are as follows: Throttle Valve Malfunction: The throttle valve controls the engine's air intake. If it malfunctions, it can cause errors in the throttle valve's opening, preventing the vehicle from closing it promptly during idle. Idle Control Valve Failure: The car's idle speed is mainly adjusted by the air intake through the bypass throttle body. If the idle control valve on the bypass throttle body fails, it will prevent the idle speed from being correctly adjusted, leading to unstable idle speed and the inability to drop. Abnormal Water Temperature Signal: The water temperature signal is one of the important signals for the vehicle's computer to control the idle speed. If the water temperature signal is abnormal, it will cause irregularities in the idle speed control by the computer. If the computer reads a water temperature value lower than the actual value, it will increase the RPM, so even when the accelerator is released, the idle speed will not drop.
12
5
Share

Where is the reverse gear located in a manual transmission?

The position of the reverse gear in a manual transmission varies depending on the specific vehicle model: in most standard vehicles, the reverse gear is located in the lower right corner; in models like the Santana and Buick, the reverse gear is positioned in the lower left corner. Introduction to manual transmission vehicles: A manual transmission vehicle uses a manual shift mechanical transmission to regulate speed. It involves manually moving the gear lever to change the gear meshing positions inside the transmission, thereby altering the gear ratio to achieve speed variation. The gears in a manual transmission are categorized as follows: First gear is the starting gear, used when the vehicle begins to move; second gear is the passing gear; third gear is the transition gear; fourth gear is the driving gear; and fifth gear is the high-speed gear.
11
5
Share

Why does the idle speed stay at 2000 RPM and won't drop?

Reasons and solutions for the idle speed staying at 2000 RPM are as follows: Reasons for high idle speed: The carburetor throttle return spring is too soft; Carburetor gasket leakage; Excessive idle jet size; Loose throttle shaft; Poor operation of individual cylinders; Intake manifold leakage due to improper fixation; Brake vacuum booster air valve leakage or other vacuum pipe leakage; Distributor contact gap too small; Or possibly excessive carbon buildup. Solutions: Turn on the air conditioning and rotate the steering wheel while idling. If the idle speed doesn't increase further, it indicates the idle switch isn't closing, which can be resolved by adjusting or replacing the throttle position sensor; If high idle is caused by intake pipe leakage, it can be fixed by sealing or replacing related components; Clean and inspect each fuel injector's spray quantity and check for blockages or leaks; If excessive carbon buildup causes high idle speed, promptly clean the throttle body and idle air control valve to resolve the issue.
5
3
Share

Do You Need to Press the Clutch When Accelerating?

When pressing the accelerator, you do not need to press the clutch pedal. If the clutch pedal is pressed, the connection between the engine and the transmission will be disconnected, preventing the engine's power from being transmitted to the transmission, and the wheels will not rotate. The clutch pedal needs to be pressed when starting the car or shifting gears. Introduction to the Clutch: The clutch is part of the car's transmission system, which can connect or disconnect the engine from the transmission. Location of the Clutch: The clutch is installed between the engine and the transmission. The clutch pressure plate is fixed to the engine flywheel, with the clutch disc located between the pressure plate and the flywheel. The clutch disc has a spline in the center that secures a drive shaft, which is the power input shaft of the transmission. The Clutch Needs Regular Replacement: The clutch disc is a wear part that requires regular replacement. As the car's mileage increases, the clutch disc will gradually wear out.
11
4
Share

When Starting a Manual Transmission Car, Should You Release the Brake or the Clutch First?

When starting a manual transmission car, you should partially release the clutch before releasing the brake. The method for starting a manual transmission car is as follows: Adjust the seat: Before starting the car, adjust the seat to ensure your feet can firmly and comfortably press the clutch, brake, and accelerator. Engage first gear when starting: Press the clutch all the way down and place your right foot on the accelerator, ready to go. Begin starting: Slowly lift the clutch with your left foot to about halfway, and release the handbrake when you feel the car vibrate. Gently press the accelerator: When the car starts to move forward, slowly release the clutch and then lightly press the accelerator to successfully start.
9
3
Share

What is the RPM for a manual transmission at 120 km/h?

Manual transmission at 120 km/h generally has an RPM around 3000. Hazards of excessively low RPM: Under normal circumstances, a car's RPM needs to be above 2000 to demonstrate its advantages, and the 2000-4000 RPM range is referred to as the healthy RPM range. If the RPM is too low, fuel cannot fully combust in the cylinders, leading to carbon buildup in the engine. Over time, this can affect the engine's performance and cause significant damage. Hazards of RPM exceeding the normal range: If the RPM is higher than the normal range, it can easily lead to burning engine oil, damaging the transmission, and may also indicate poor engine performance. Generally, small-displacement turbocharged engines have relatively higher output power because the turbo provides additional assistance, allowing more oxygen to be drawn in during operation.
1
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.