If you’ve ever driven on a racetrack, there’s a good chance this question is always sitting somewhere in the back of your mind: “What’s the fastest way through this corner?” In Japan, there’s a legendary professional racing driver named Motoharu Kurosawa. If you ask who has had the greatest influence on circuit driving in Japan, … Read more

Most of you are probably familiar with the friction circle, but a few years ago… I came across an article about it on the internet. It was written by an individual. ——————————————– A tire’s grip has a limit. If you use 100% of the available grip in the longitudinal direction, then you cannot use any … Read more

Hello everyone! Out of the blue, let me ask you this: have you been adjusting your damper settings? Changing the damping force of your dampers can completely transform the way a car feels to drive. Increase or decrease the damping force, and the speed of the car’s body motions—things like pitching under braking and body … Read more

They say the lower a car’s center of gravity is, the better. I’d also love it if I could make the center of gravity of my own Roadster a little lower. Actually achieving that is not easy, because it involves balancing many different factors. But still, lowering the center of gravity is basically a fundamental … Read more

There are many different types of suspension springs, and the shapes of their ends are sometimes described as open-end, closed-end, and so on. These spring ends are also called inactive coils. In terms of their meaning, they are basically “the part of the spring that is not counted as the active coils.” In other words, … Read more

Spring preload is one of those things that is incredibly easy to misunderstand. And honestly, there are quite a few reasons why people end up thinking about it the wrong way. You can’t really blame them. After all, the name itself is “preload.” Ah, well… I mean, what else are people supposed to think? The … Read more