Saturday, 17 October 2015

RC Drift Technique

I know RWD RC drift is taking over big time but I am still a CS enthusiast. I find it more technical and challenging. That doesn't mean that I don't have fun with RWD and that it isn't challenging but CS, to me, is more technical.

Before we go any further, it is important to know that technique should come before setup and I know that I've already discussed setup but this is because I was learning the techniques myself.

To start, Korogashi. What is korogashi?

The literal translation is "Rolling Sound" which I guess comes from the difference in sound you can hear when performing it on a hard surface. In it's most basic form, Korogashi is the art of getting the front wheels to "roll" rather than spin. Letting the CS (counter steer / rear overdrive ) do the work and create a drift for you.
(Source: MaxSpeedTechnology)

So what does this mean?

Let's say that you have a front one way differential installed and a CS ratio of 1:1.5. If you drive in a straight line at low speed, you are already achieving korogashi.

Here's how: the rear wheels are technically faster than the front and so will push the chassis along. With a front one way differential installed, the front wheels will free wheel along the ground at the rolling speed that is supplied by the rear wheels.

That is the basic principle of Korogashi, the challenge is to achieve this while in a drift. This can be difficult.

Here's why: when the chassis is at a drift angle, that angle and the forward speed should be controlled by the rear wheels by precise throttle control. The rear wheels are then taking a wider line (radius) than the front and an imbalance in front to rear wheel speed occurs. The driver must control the throttle so the only the rear wheels spin up allowing the front wheels to free wheel.. It's not easy.

It's all good to have all the shiny and carbon fibre parts but if the driving of the chassis doesn't reflect the goal then it's pointless having it.

This is a scale hobby, the fun part is achieving the goal which is to mimic the real thing. Steering constantly or steering in and not counter steering is not part of the goal.