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

Max Verstappen comes away with 2019 Aston Martin Vantage specs after quick drive

Aston Martin's redesigned Vantage is set for a reveal on Tuesday, but thanks in part to Red Bull Racing Formula 1 driver Max Verstappen we already have a few of the specs. Aston Martin is one of Red Bull's main sponsors, and the two are also linked by way of a technical partnership. For example, Red Bull is helping to develop Aston...

Self-driving Jaguar Land Rover prototypes take to public roads in UK

Self-driving prototypes from Jaguar Land Rover last week took to public roads in the automaker's home market for the first time. The test was part of the United Kingdom's Autodrive project, a government-backed 3-year initiative that involves testing of self-driving cars on the streets of Milton Keynes and Coventry. Previously, all testing was...