Do Subarus have limited slip differentials?
Subaru vehicles are renowned for their all-wheel-drive systems and exceptional handling, making them a popular choice for drivers who value performance and safety. One common question among Subaru enthusiasts and potential buyers is whether Subarus come equipped with limited slip differentials (LSDs). In this article, we’ll explore what limited slip differentials are, how they work, and whether Subaru vehicles feature this technology.
What Is a Limited Slip Differential?
A limited slip differential (LSD) is a type of differential that improves traction by limiting the amount of wheel spin during acceleration or when driving on slippery surfaces. Unlike an open differential, which allows wheels to spin freely and independently, an LSD transfers torque to the wheel with the most grip. This feature is particularly useful in off-road conditions, snowy weather, or high-performance driving scenarios.
Do Subarus Have Limited Slip Differentials?
Yes, many Subaru models are equipped with limited slip differentials, but the type and availability of LSDs vary depending on the model and trim level. Subaru has a long history of incorporating advanced drivetrain technologies into their vehicles, and LSDs are often part of their all-wheel-drive (AWD) systems. Here’s a breakdown of how Subaru integrates LSDs into their lineup:
- Performance Models: High-performance Subaru models, such as the WRX and WRX STI, often feature advanced LSDs to enhance handling and traction during spirited driving. These vehicles may include both front and rear LSDs, as well as a center differential for optimal power distribution.
- Off-Road Capability: Subaru’s SUVs, like the Outback and Forester, may include a rear limited slip differential in certain trims to improve off-road performance and stability on uneven terrain.
- Standard Models: While not all Subaru models come with LSDs, their symmetrical AWD system provides excellent traction and stability, even without an LSD. Some base models may rely on electronic traction control systems instead of mechanical LSDs.
Types of Limited Slip Differentials in Subarus
Subaru uses different types of LSDs depending on the vehicle’s purpose and performance requirements. These include:
- Viscous Coupling LSD: Commonly found in older Subaru models, this type of LSD uses a viscous fluid to transfer torque between wheels.
- Torsen (Torque-Sensing) LSD: Often used in performance-oriented models, this mechanical LSD provides precise torque distribution for improved handling.
- Electronic LSD: Some newer Subaru models use electronic systems to simulate the effects of a mechanical LSD by applying braking force to a spinning wheel.
Conclusion
Subarus are well-regarded for their innovative AWD systems and ability to handle a variety of driving conditions. While not all Subaru models come equipped with limited slip differentials, many performance and off-road-oriented trims include this feature to enhance traction and stability. Whether you’re navigating snowy roads or enjoying a spirited drive, Subaru’s drivetrain technologies are designed to keep you in control.
If you’re considering a Subaru and want to know more about its drivetrain features, feel free to reach out to us at Kevin’s Autos. With years of experience in car maintenance and repair, we’re here to help you make informed decisions about your vehicle.
Frequently Asked Questions
Do AWD cars have limited slip differentials?
Sometimes there is a switch or level to turn off the AWD, but unlike 4WD they are perfectly at home on dry pavement while sending power to both axles. This is accomplished with a center differential, and often one that operates with limited slip properties.
What is the differential on a Subaru?
Your vehicle's differential system is a gearbox between the drive wheels that allows wheels to turn at independent speeds and assists your car in turning. All-wheel drive Subarus have both front and rear differentials. The fluid in the differential system breaks down over time and will eventually need to be replaced.
Does Subaru use limited slip differential?
At the core of our legendary symmetrical-full-time AWD system is Subaru's centre limited-slip differential.
How can I tell if I have a limited slip differential?
Jack up the rear end (rwd) or Front end (fwd) off the ground and safely support it. Then rotate the wheel/tire on one side. - If the other wheel spins in the same direction as the one you are turning, you have an LSD. - If the other wheel spins the opposite direction as the one you are turning, you have an open diff.
Is it better to have a limited slip differential?
Limited slip differentials compensate for a loss of traction in one wheel, offering you more control even when driving on slippery or rough roads. A limited slip differential increases a car's power and speed by utilising engine power more efficiently, thus allowing for a smoother and more enjoyable drive.
What vehicles have a limited slip differential?
LSD cars: which models have limited-slip?
- BMW M models like the M2.
- Ford Focus.
- Ford Mustang.
- Mazda MX-5.
- Toyota GT86.
Does AWD prevent slipping?
Because AWD and 4WD send power to all four wheels, rather than two, they do provide roughly twice as much traction as a two-wheel-drive vehicle for accelerating in slippery conditions.
What is special about Subaru all-wheel drive?
Subaru AWD is different because it provides power to all wheels at all times and is also capable of moving power from the left to right side wheels instead of just from the front axle to the rear axle, which is a drawback of many other AWD systems.
Do Subarus have 2 differentials?
Viscous Center Differential (VCD)
This VCD system is used on all manual transmission models, like the Crosstrek, Impreza, and Forester. The torque is split 50/50 between the front and rear wheels and includes an open front and rear differential.
Do AWD cars have 2 differentials?
4WD differentials transfer the same amount of torque to all four wheels to make them move at the same time. Conversely, AWD supplies differing amounts of torque to each tire. 4WD normally has 2 differentials, while AWD can have up to three.
