Friday, November 25, 2011

Drifting RC Cars

Drifting RC Cars

Rc Helicopter

I assume that you have got your RC car setup to drift, if not check out the website at the end for modifying your RC car to drift.

RC Drifting and drifting in general follows the same line as if you were racing, at least one set of tires follows this line. This is the ideal drifting line, although its okay to go wide. So on an entry into a corner you would have your front wheels as close the the apex as possible, while having your rear wheels follow a much wider line (the wider the better). This means that your car is facing apex of the corner, depending on what kind of corner this is it could be as much as 90 degrees to the apex, any more and technically your going backwards, this is called a washout. On the exit you would let your rear sliding towards the opposite side, possibly setting up your next drift.

So from a drivers point of view, albeit via remote control, what you need to do it.

1. Approach the corner as if you were following a racing live, leave enough room for the rear of the car to come out.

2. Turn into the corner very early and maybe dab the break to help break the rear traction.

3. as the rear starts to slide, squeeze the throttle and turn into the slide (this part takes a lot of practise)

4. Once the drift has started you should be able to keep the steering centered and use the throttle to invoke over or under steer, you will still need to use the steering to keep your angle perfect and also you need throttle to control your speed, in which case steering is necessary to control the rotation of your car.

5. If you can drift a course by just invoking a drift then steering with your throttle this makes for an incredibly smooth drift, if you can couple this with a few passes with your nose and tail a hairs breadth from the curb, then you got it.

6. It's considered by most that you should be counter-steering through the corners, i.e. your front wheels should be steering into the drift at all times, while this is true for D1 drifting, with RC it is a little different, for one we are 99% four wheel drive, and secondly the weight distribution is almost always in the middle or back of the chassis, which means when the car slides the inertial pulls the heavy rear around automatically.

The transition is the most difficult part, it depends a lot on your car, but a good place to start is by understanding weight transfer.

When you brake the weight transfers forward, when you floor it, it goes backwards and when you turn it goes to the opposite side, turn left, weight goes right. To transition smoothly from one drift to another you have to shift the weight of the car to get it to do what your want, your can't steer it, that's called racing ;)

Okay so we are in mid drift and clip the apex while holding a huge angle, we exit the right turn, turn slightly to the right and floor it to keep the drift going, over rotating slightly to induce a good angle on the exit. You now need to turn into the drift (turn left) very slightly and hold the angle, the car should move straight down the track, with a big drift angle, while slowly making for the right side of the track (we have a left turn coming up). About 2-3 car lengths before the next corner back off the throttle ( now the weight transfers to the front, pushing the front tires into the asphalt and lifting the rear slightly, this give good grip on the front and makes the rear slide like mad ) Turn to the left, the rear will respond by swinging around, as it's doing this turn into the drift and give throttle. The four wheel drive will stop the rotation as the weight transfers to the back tires and they get more grip. Hold the drift, adjusting it with throttle and steering until the next corner. Rinse,Repeat.

Drifting isn't easy, it helps to know the track, some surfaces will have a different effect on you when you slide sideways over them, it pays to learn where these are. If you find there is a section you 180 on, go see if there isn't a slight change of gradient or a small defect in the road. Often during competitions there will be a section of the track that a lot of people struggle with.

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