Brendon Reading Automotive Services

03/03/2026

04/04/2025

Understanding Gear Ratios: Gear Reduction vs. Overdrive
Gear ratios are crucial in controlling the speed and torque in a vehicle's transmission. Here’s a breakdown:

1. Gear Reduction (2:1 Ratio)
- The drive gear has 8 teeth, while the driven gear has 16 teeth.
- The gear ratio is calculated as 16 (driven) ÷ 8 (drive) = 2:1.
- Result: For every one rotation of the drive gear, the driven gear rotates only half a turn.
- Purpose: Increases torque but reduces speed, useful for tasks requiring more power at lower speeds, like towing.

2. Overdrive (1:2 Ratio)
- Here, the drive gear has 16 teeth, and the driven gear has 8 teeth.
- The gear ratio is 8 (driven) ÷ 16 (drive) = 1:2.
- Result: For every turn of the drive gear, the driven gear rotates twice.
- Purpose: Increases speed but reduces torque, ideal for highway driving to save fuel and reduce engine wear.

Knowing how these ratios work helps in understanding how transmissions balance power and efficiency.

03/04/2025

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13/03/2025

01/02/2025

Buggy truck

05/12/2024

5 Sensors That Control Power:

Here are car sensors that play a crucial role in managing a vehicle's power output:
1. Mass Airflow Sensor (MAF): -This sensor measures the amount of air entering the engine. The engine controls unit (ECU) uses this information to determine the appropriate amount of fuel to inject, ensuring optimal power delivery.
2. Throttle Position Sensor (TPS): -The TPS measures how far the accelerator pedal is pressed. This data is used by the ECU to adjust the engine's power output accordingly.
3. Oxygen Sensor (O2 Sensor):- Located in the exhaust system, the O2 sensor measures the oxygen contents in the exhaust gases. The ECU usess this information to adjust the air-fuel mixture, optimizing power and emissions.
4. Knock Sensor: -This sensor detects engine knock, a condition that occurs when the fuel-air mixture ignites prematurely, causing the engine to vibrate. The ECU uses this information to adjust the ignition timing to prevent knock and maintain optimal power.
5. Camshaft Position Sensor:- This sensor monitors the position of the camshaft, which controls the opening and closing of the engine's valves. The ECU uses this information to determine the correct timing for fuel injections and spark ignitions.
These sensors work together with the ECU to ensure that the engine operates efficiently and produces the appropriate amount of powwer for various driving conditions.