Drifting isn’t just a flashy way to turn heads; it’s a precise driving skill that demands the right equipment. If you’ve ever wondered how drivers maintain those controlled slides, the secret often lies in their differential setup. The Limited Slip Differential (LSD) is a critical component in achieving those smooth, controlled drifts. But is LSD really the best choice for drifting? Let’s dive into the mechanics and benefits to find out.
Understanding LSD
LSD stands for Limited Slip Differential, a nifty piece of machinery designed to improve traction. Unlike an open differential, which can leave one wheel spinning uselessly when traction is lost, an LSD ensures that power is distributed more evenly between the wheels. This means both wheels can maintain traction and keep you moving forward, even in tricky conditions.
Types of LSD
There are a few types of LSDs you’ll encounter:
- Clutch-Type LSD: Uses clutch plates to distribute torque.
- Cone-Type LSD: Similar to clutch-type but uses cones instead of plates.
- Torsen LSD: Uses gears to split torque, known for its smooth operation.
How LSD Differs from Open Differentials
Cars have differentials because when cars turn, the outside wheels have to travel a wider circle than the inside wheels, meaning the outside wheels have to turn faster. This difference is what the differential is designed to compensate for by dividing power between the outside wheel and inside wheel such that the outside wheel rotates faster. This difference in outside vs inside wheel speed is called “slip.”
There are two types of differentials: open diffs and limited slip diffs. An open differential has no limitation on how much difference in power one wheel can have, i.e. one wheel can spin while the other wheel can be stationary. An open diff splits torque equally between both wheels. But since a wheel with no traction also requires very little torque to rotate, that means that the wheels of a car with an open diff that has one wheel with no traction and one wheel with traction will receive only as much torque as needed to rotate the wheel with no traction.
This is not ideal for drifting, because a car only drifts when both of its rear wheels lose traction, and a common way to do that is to force the rear wheels to lose traction is to apply more power while in a corner, overloading the tires and causing the rear to slide. With an open diff, however, as soon as one tire loses traction, an open diff stops sending torque to the other wheel, making it difficult if not impossible to drift using this method.
A limited slip differential ensures that BOTH wheels always receive at least some torque all of the time. The “limited slip” part just means that there is still some difference in speed (or slip) allowed between both wheels because the wheels still need to travel different distances in a turn, but it’s not unlimited as in an open differential. So when a driver in a car with a limited slip diff tries the maneuver described above, the first wheel will break traction, and then the limited slip diff will still send power to the second wheel and allow it to also break traction, thus starting a slide.
Benefits of LSD for Drifting
- Improved Traction Control
Drifting is all about controlled oversteer, and LSD provides the traction control needed to keep your car from spinning out of control. With both wheels getting power, you can initiate and maintain a drift with more confidence.
- Enhanced Vehicle Stability
Stability is key when you’re pushing your car to its limits. LSD helps maintain balance by evenly distributing power, which can prevent the rear end from snapping out unexpectedly.
- Better Power Distribution
LSD ensures that power is not wasted on a single spinning wheel. Instead, it distributes power where it’s needed most, allowing for smoother and more predictable drifts.
Installation and Maintenance of LSD
- Installation Process
Installing an LSD can be a complex process, typically requiring professional assistance. It involves removing the existing differential and replacing it with the LSD unit. Proper alignment and calibration are crucial to ensure optimal performance.
- Regular Maintenance Tips
Regular maintenance is key to keeping your LSD in top shape. This includes changing the differential oil regularly, checking for wear and tear, and ensuring the unit is properly lubricated.
- Common Issues and Troubleshooting
Common issues with LSDs include clutch plate wear, oil leaks, and noise. Regular inspections can help catch these issues early. If you notice any unusual behavior, such as excessive noise or difficulty maintaining traction, it’s time to get your LSD checked out.
Alternatives to LSD for Drifting
- Welded Differentials
Welded differentials are a budget-friendly alternative. They lock both wheels together, providing constant power distribution. However, they can be harsh on daily drives and increase tire wear.
Conclusion
To wrap it up, is LSD good for drifting? Absolutely. It provides the control, stability, and power distribution needed to master the art of drifting. While there are alternatives, the benefits of LSD make it a top choice for both amateur and professional drifters.
