Can a gearing change make your car quicker?

If you change your car’s gearing, can you make it quicker? The simple answer is yes. More aggressive gearing creates a quicker car but not a faster car.

A gearing change will have a noticeable affect on your car. If you swap in taller rear gears, you can gain some top-end speed, making your car faster, but you’re going to be a bit slower leaving from a stop. You’ll get an opposite result when you swap in shorter gears.

Engineering Explained host Jason Fenske recently changed out the rear-end gearing in his own project Honda S2000. That’s good news for you, because he’s going to break down the resulting change to his car with the help of math and science.

Jason removed the original 4.10 rear gears in favor of a shorter limited-slip differential packed with 4.44 gearing. To see just how much quicker this setup really is, Jason utilized his VBox data logger and produced a few 10-60 mph runs with his old rear end and the newer one, making sure to minimize the number of variables between the runs.

The newer 4.44 gearing resulted in times that were between 4 and 7 percent quicker. More noticeable, though, was the fact that the peak average g forces felt during those pulls rose by five percent. That’s due to the torque of the engine getting properly planted to the tires and the road.

On the far side of his powerband, Jason notes that his car lost some top-end speed. The good news is that we’re talking about a Honda S2000 and not a Bugatti Chiron, so it’s far better to gain low-end scoot in this scenario.

Check Also

Jaguar Land Rover developing system that lets cars ‘see’ around corners

Thanks to modern communications and sensor technology, it will soon be possible for cars to know what's immediately around them even when the line of site is blocked, in a sense making them able to see around corners. This ability is one of the core pillars of most self-driving systems being developed, including that from Jaguar Land Rover. But even if you...

2019 Porsche 911 GT3 RS sets 6:56.4 Nürburgring lap time

It's a Porsche RS so you know it's going to be fast but we bet you'd have never guessed that the latest Porsche 911 GT3 RS could lap the Nürburgring in under seven minutes. Remember, this is a sports car equipped with a naturally aspirated six-cylinder. But somehow Porsche has done it, with a green GT3 RS equipped with the car's available Weissach...