Many car enthusiasts, encountering the legendary Japanese coupe for the first time Nissan Skyline generation R34, wonder about its powertrain configuration. In the mass consciousness, this car is strongly associated with all-wheel drive, but the reality turns out to be much more multifaceted and interesting. Understanding which drive is installed on a particular machine is critical for selecting spare parts, tuning the suspension and proper control in extreme situations.
Base models of sedans and coupes Skyline were equipped with a classic rear-wheel drive layout, which ensured clean handling and classic car behavior when skidding. At the same time, version GT-R received a unique all-wheel drive system ATTESA E-TS, which made this car dominant on the track and in drag racing. Understanding the nuances of these systems is necessary for every potential owner or enthusiast who wants to dive deeply into the technical component of the Japanese automobile industry.
History of transmission development in the R34 generation
Generation Nissan Skyline The R34, produced from 1998 to 2002, was the culmination of Nissan's engineering efforts in sports sedans and coupes. Engineers sought to create the perfect balance between comfortable daily transport and high-tech racing car. It was during this period that the development paths of two main branches split: civilian models with rear-wheel drive and a high-performance version of the GT-R with all-wheel drive.
Rear-wheel drive on regular models Skyline (2.0 GT, 2.5 GT-T, 2.5 GT-T Type M) provided classic handling, which is appreciated by drivers who prefer controlled drifts and precision when cornering. This design made it possible to preserve the tradition of a “real Japanese sports car”, where the rear wheels pull and the front wheels only guide the car. Owners of such cars often modify the suspension specifically for rear-wheel drive characteristics, installing stiffer stabilizers and sports shock absorbers.
However, the version GT-R received a revolutionary all-wheel drive system for its time, which had no analogues in the mass segment. The development of this system was based on experience from Group A racing and the need for maximum stability when accelerating at high speeds. ATTESA E-TS became a response to the challenges of the time, allowing the car to adapt to changing road conditions in real time.
Rear-wheel drive: Clean driving philosophy
Most models Nissan Skyline Non-GT-R R34s were exclusively rear-wheel drive. This decision was dictated by the desire to preserve the dynamic characteristics that are traditionally valued in the Japanese sports car industry. The rear-wheel drive layout provides better weight distribution of the car, since the weight of the engine and transmission is distributed in such a way that the rear axle receives sufficient load for effective traction.
Driver driving rear wheel drive Skyline, gains full control over the skid angle through throttle control. If you let off the gas suddenly or press the accelerator pedal hard, the rear axle can easily spin out of control, allowing you to perform controlled slides. For many enthusiasts, this aspect is the main argument for buying the regular R34 over the all-wheel drive GT-R.
- 🚗 Classic control scheme, where the rear wheels are responsible for traction, and the front wheels are responsible for steering.
- 💨 Possibility of easy and predictable skidding of the rear axle when entering the turn correctly.
- ⚙️ Simplified transmission design, which facilitates maintenance and repair in the field.
- 🏎️ Better maneuverability on the track due to the absence of excess weight of the driveshaft and front axle differential.
However, rear-wheel drive has its drawbacks, especially in bad weather conditions. On slippery asphalt or snow, the car requires much more skill from the driver to avoid loss of control. Limited slip differential (LSD) is often installed from the factory on turbo versions to improve traction during hard starts, but even it cannot fully compensate for the physics of rear-wheel drive on ice.
ATTESA E-TS all-wheel drive system on the GT-R
The heart of the legendary Nissan GT-R is a unique all-wheel drive system called ATTESA E-TS (Advanced Total Traction Engineering System for All-terrain with Electronic Torque Split). This system is not permanent all-wheel drive in the classical sense, but is a complex electronically controlled circuit that engages the front axle only when really necessary. Under normal conditions, the car drives like a classic rear-wheel drive, which maintains its sporty character and efficiency.
The system constantly monitors wheel speed, steering angle, throttle position and even lateral and longitudinal acceleration. If the sensors detect slipping of the rear wheels, the electronics redistribute torque to the front axle through a hydraulic coupling. This happens almost instantly, providing incredible vehicle stability when cornering at high speeds and under hard acceleration.
- 🔧 Hydraulic coupling that can transmit up to 50% of torque to the front axle.
- 📊 Electronic control unit that analyzes more than 10 vehicle movement parameters per second.
- 🛡️ Excellent cross-country ability on wet asphalt and snow without loss of sporty dynamics.
- 🚀 Instant traction distribution, preventing loss of control in critical situations.
It is important to note that the system ATTESA E-TS does not just connect the front axle, but does it in proportion to the degree of slippage. This means that on dry asphalt the car behaves like a rear-wheel drive, but on ice or mud it turns into an all-wheel drive tank. This adaptability has made GT-R one of the fastest and safest cars of its time.
- Rear-wheel drive (RWD)
- All-wheel drive (AWD)
- Depends on coverage
- I have no opinion
Technical features of torque distribution
The mechanism of operation of the all-wheel drive system on Nissan Skyline R34 GT-R is based on the use of a multi-disc clutch located on the cardan shaft. This clutch works on the principle of friction coupling: when the electronics see the need for traction on the front axle, it compresses the disc pack, transmitting force. The compression ratio is controlled by oil pressure, which in turn depends on the signal from the electronic control unit.
Unlike mechanical all-wheel drive systems, where the torque distribution is rigidly fixed (for example, 50/50 or 40/60), ATTESA E-TS capable of changing proportions over a wide range. In quiet driving mode, the distribution can be 99% to the rear wheels and only 1% to the front, which minimizes power loss and wear on components. In extreme situations, such as sudden starts or skidding, the front axle can receive up to 50% of the traction, providing maximum stability.
For owners GT-R It is critical to understand that the system requires regular maintenance. Oil in transfer case and the coupling must be changed strictly according to the regulations, otherwise the efficiency of the system may drop sharply. Worn friction discs or oil leaks can cause the system to stop working correctly, resulting in loss of controllability at high speeds.
⚠️ Attention: Incorrect operation of the system ATTESA E-TS can lead to a sharp change in the car's behavior when turning. If you feel that the front axle does not engage when slipping, immediately diagnose the hydraulic system and change the oil in the transfer case.
Comparison table of drive characteristics
For clarity, let’s compare the main characteristics of rear-wheel drive models Skyline and all-wheel drive version GT-R. This data will help you choose the car that best suits your needs and driving style.
| Characteristics | Rear-wheel drive (Skyline 2.0/2.5) | All-wheel drive (Skyline GT-R) |
|---|---|---|
| Transmission type | Classic rear wheel drive | ATTESA E-TS (electronically controlled) |
| Torque distribution | 100% to rear wheels | 0% to 50% front (adaptive) |
| Transmission weight | Smaller (no cardan and gearbox at the front) | More (additional nodes) |
| Cornering control | Susceptible to rear axle skidding | Stable with minimal understeer |
| Efficiency on snow | Low (requires experience) | High (automatic adaptation) |
Influence of drive type on driving style and tuning
The choice between rear-wheel drive and all-wheel drive radically changes the approach to car tuning. For rear wheel drive Skyline The focus is on engine power, weight reduction and suspension tuning for drifting. Limited slip differentials (LSD) play a key role here, helping to keep the rear axle on track at high skidding angles.
For GT-R with all-wheel drive, tuning is often aimed at improving system performance ATTESA E-TS. Many owners install flashing the ECU to change the logic of the clutch, making it more aggressive or, conversely, softer. It is also popular to install more efficient cooling radiators for the transfer case to avoid overheating under extreme loads.
- 🔥 For RWD: Installation of a short-throw gearbox and reinforced axle shafts for drifting.
- 🌪️ For AWD: Chip tuning to optimize torque distribution.
- 🛑 Installation of sports brakes, since a four-wheel drive vehicle is heavier and faster.
☑️ Checklist for checking the all-wheel drive system
Specific problems and their solutions
Despite high reliability, drive systems Nissan Skyline R34 have a number of characteristic problems that you need to be aware of. On rear-wheel drive models, wear of the axle shafts and driveshaft crosspieces is often observed, especially if the car has undergone serious engine tuning. Cardan shaft bearings require replacement when vibrations occur, which can lead to destruction of the transmission.
On all-wheel drive GT-R The most common problem is wear of the multi-plate clutch. If the car has been idle for a long time or the oil has not been changed on time, the discs may stick to each other, which will lead to the front axle being constantly connected or, conversely, to its disconnection. In such cases, a complete replacement of the coupling or complex repairs involving turning the discs is required.
What to do if there is vibration at high speeds?
If you feel vibration at speeds above 100 km/h, check the wheel balancing and the condition of the driveshaft. On a GT-R, vibration may also indicate problems with the all-wheel drive clutch, which requires immediate diagnosis.
⚠️ Attention: When changing the oil in the all-wheel drive system GT-R Use only original Nissan oils or high-quality analogues with the tolerances specified in the service book. Incorrect viscosity can lead to overheating and failure of the coupling.
Conclusion and final recommendations
Choice between rear-wheel drive and all-wheel drive Nissan Skyline R34 depends entirely on your goals and preferences. If you're looking for a car for drifting, dry-weather track use, or love classic handling, then the rear-wheel drive version is the perfect choice. It is easier to maintain and offers a purer driving experience.
If you want a car that will perform reliably in all weather conditions, provides maximum stability during acceleration and is suitable for aggressive driving on the track in the rain, then GT-R with the system ATTESA E-TS has no competitors. This machine is the pinnacle of engineering, capable of adapting to any challenge.
Before purchasing any Skyline R34 Be sure to check the transmission service history. This is critical for the GT-R, as repairing the all-wheel drive system can be very expensive.
Rear-wheel drive ensures clean handling and simple design, while the GT-R's ATTESA E-TS all-wheel drive ensures maximum stability and adaptability in all conditions.
Frequently asked questions (FAQ)
Is the Nissan Skyline R34 all wheel drive?
No, not all models. Basic versions Skyline (2.0 GT, 2.5 GT-T) have rear-wheel drive. All-wheel drive system ATTESA E-TS installed only on version GT-R.
Can a rear-wheel drive Skyline be converted to all-wheel drive?
It is theoretically possible, but this is an extremely complex and expensive procedure, requiring replacement of the entire rear suspension, installation of a transfer case, front gearbox and complex re-flashing of the electronics. In practice, this is not economically feasible.
Which drive is better for winter use?
Of course, all-wheel drive GT-R with the system ATTESA E-TS provides much better cross-country ability and stability on snow and ice than rear-wheel drive versions.
How often should the GT-R's all-wheel drive oil be changed?
It is recommended to change the oil in the transfer case and differentials every 30-40 thousand kilometers, or more often if the car is actively used for sports.