RWD

We learned about AWD, so now let us learn about RWD, shall we?

In a typical automotive design, something called the “automobile layout” is what describes where exactly on the vehicle the Rebuilt Car Engine and Drive Wheels are found - I mean, you can find these at normal junk yards .. but this is specifically for where it’s find it on the vehicle. There are a bunch of ways that engine locations and drive wheels are found on a vehicle, the location of each is usually dependent on the way the car is used. The main factors that take a toll on the type of design created include: cost, complexity, reliability, packaging (location and size of the passenger compartment and boot), weight distribution and the vehicle's intended handling characteristics.

The layouts can be usually divided into two main categories: front- or rear-wheel drive .. we’re going to focus on rear-wheel-drive.

When you have a car with RWD, the New or Rebuilt Car Engine is usually placed in the front of the car and the Drive Wheels are in the back - this whole layout was called the front-engine, rear-wheel drive layout (FR layout). This was the main car layout that was used for most of the 20th century. Mostly all motorcycles and bikes will use this layout; it’s either by the driveshaft, chain, or belt, since the front wheel is turned for steering.

The larger part of cars that use rear-wheel-drive have a longitudinally-mounted engine in the front of the vehicle - this is supposed to drive the rear wheels by way of a driveshaft linked by a differential between the rear axles. There are some FR layout cars that will place the gearbox in the back .. even though most manufacturers will attach it to the engine at the front.

The FR design will be chosen by different producers because of its simple design and pretty good handling characteristics. When you place the drive wheels in the back of the car, this will make room for the transmission in the center of the car; it will even avoid the mechanical complexities that are associated with transmitting power to the front wheels of the vehicle. For those performance-oriented cars that are so expensive to some of us (like me), the FR layout would be more suitable compared to the front-wheel-drive designs - especially with those engines that will go over 200 horsepower. The main reason why is because weight will transfer to the back of the car during acceleration; this is what loads the back wheels and increases their grip on the road.

Another big advantage of the FR layout is that it’s really easy to access the engine compartment - this only happens because of the longitudinal orientation of the drivetrain, as compared to the FF layout. Those big and powerful engines like the Inline-6 and 90° big-bore V8 are typically too long to fit in a FF transverse engine layout. The whole FF configuration can usually accommodate an Inline-4 or V6 .. at the most. This is another main reason why luxury/sports cars almost never use the FF layout.

Some advantages include even weight distribution, weight transfer during acceleration, better braking, the ability to accommodate more powerful engines, and you even get better handling in dry driving conditions. The main disadvantages include less interior space for your passengers, more weight all together, and improper weight distribution when it’s loaded.

What do you think about it?