Nissan Skyline R34 - an iconic Japanese car, whose legend is largely associated with a unique all-wheel drive system ATTESA E-TS. But not all versions of the R34 were equipped with it: the line included rear-wheel drive modifications, and even all-wheel drive ones without “smart” electronics. This article will help you understand what drive does a specific version of Skyline R34 have?, how to identify it by VIN or visually, and will also reveal the nuances of operation and tuning of the transmission.

The debate about which drive is better for drifting, track or everyday driving has raged for decades. We analyzed technical data, owner reviews and expert tests to give a comprehensive answer. And we’ll also reveal a secret code in the VIN that will accurately indicate the drive type of your R34, and explain why some "all-wheel drive" Skylines actually aren't.

1. Versions of Skyline R34 and their drive types: complete table

Ruler R34 included 6 main modifications, each of which had a unique transmission. The main division is based on the type of drive and the presence of a turbine. Here are the key differences:

  • 🏁 GT-R - flagship with ATTESA E-TS (electronically controlled all-wheel drive) and turbocharged RB26DETT. The most technologically advanced version.
  • 🚗 25GT-T - turbocharged version with all-wheel drive ATTESA ET-S (simplified version without electronic control).
  • 🔄 25GT - naturally aspirated engine RB25DE And rear wheel drive (classic drift layout).
  • 💨 25GT-X - all-wheel drive version 25GT-T, but with naturally aspirated RB25DE And ATTESA ET-S.
  • 🏎️ 25GT-FOUR - rare modification with all-wheel drive ATTESA ET-S and engine RB20DE (Japanese market only).
  • ⚡ 25GT-V — rear-wheel drive version with V6 VQ25DD (exported as Infiniti G20).
Model Engine Drive type All-wheel drive system Notes
GT-R RB26DETT Full ATTESA E-TS Electronic torque distribution, viscous coupling in rear differential
25GT-T RB25DET Full ATTESA ET-S Mechanical central differential lock, no electronic control
25GT RB25DE Rear — Classic drift layout, lightweight transmission
25GT-X RB25DE Full ATTESA ET-S Aspirated engine with all-wheel drive - a rarity on the aftermarket

⚠️ Attention: There are often “converted” ones on the market. 25GT with all-wheel drive installed GT-T or GT-R. Such cars require careful inspection - often after such tuning, the geometry of the body and the reliability of the transmission suffer.

2. ATTESA E-TS vs ATTESA ET-S: what is the difference?

Both all-wheel drive systems ATTESA (Advanced Total Traction Engineering System for All-Terrain) were developed Nissan to improve handling, but their operating principles are radically different.

ATTESA E-TS (installed on GT-R) is The world's first production all-wheel drive system with electronically controlled torque distribution. It analyzes data from wheel speed sensors, steering angle, lateral acceleration and even gas pedal position to instantly redirect up to 50% of power to the front axle. Normal mode GT-R It drives like a rear-wheel drive car, but when the rear wheels slip, the system engages the front axle in a split second.

ATTESA ET-S (on 25GT-T And 25GT-X) - simplified version without electronics. Here it is used mechanical viscous coupling in the central differential, which is blocked when the speed of the front and rear axles differs. The torque distribution is fixed: 50:50 in normal mode and up to 70:30 when slipping. The system is less accurate, but easier to maintain.

📊 Which drive would you prefer for the Skyline R34?
  • ATTESA E-TS (GT-R)
  • ATTESA ET-S (25GT-T)
  • Rear (25GT)
  • I don't know, I need to compare
  • ⚡ ATTESA E-TS: electronic control, adaptive torque distribution, complex diagnostics.
  • ⚙️ ATTESA ET-S: mechanical viscous coupling, fixed distribution, more reliable in tuning.
  • 🔥 Rear-wheel drive: lighter, easier for drifting, but worse handling on wet roads.

⚠️ Attention: Viscous coupling in ATTESA ET-S requires replacing a special fluid every 60–80 thousand km. If it is not changed, the system begins to jam, which leads to overheating and failure. Cost of the original liquid Nissan ATTESA Fluid - from 15,000 rubles per liter.

3. How to determine the Skyline R34 drive by VIN code?

The most reliable way to find out the drive type is to decipher VIN code car. It encrypts all key information, including the transmission. For Skyline R34 the drive is designated 6th character in VIN:

  • 🔢 "5" — rear-wheel drive (25GT, 25GT-V).
  • 🔢 "6" - all-wheel drive with ATTESA ET-S (25GT-T, 25GT-X, 25GT-FOUR).
  • 🔢 "8" - all-wheel drive with ATTESA E-TS (GT-R).

Example VIN for GT-R: BNR34-100008, where "8" indicates ATTESA E-TS. For 25GT it will be ER34-200005 (“5” — rear-wheel drive).

Where can I look up the VIN for Skyline R34?

The main VIN is located on a plate under the hood (on the left side of the mudguard) and is duplicated on the windshield on the driver's side. It can also be found in the documents: PTS (for Russian cars) or Shaken (for Japanese cars).

⚠️ Attention: On some “gray” cars, the VIN may be interrupted or counterfeited. Check its integrity: the original symbols are clearly engraved without traces of polishing. For additional verification, check the VIN against Japanese history (Auction Sheet), where the original equipment is indicated.

4. Visual differences: how to identify a drive without a VIN?

If there is no access to the VIN, the type of drive can be determined by external and technical characteristics:

  1. Cardan shaft: For all-wheel drive versions (GT-R, 25GT-T) under the car you can see the driveshaft running from the transfer case to the rear axle. For rear wheel drive (25GT) he is not there.
  2. Transfer case: On all-wheel drive models, a transfer case is installed behind the gearbox (visible through the hood or on the lift).
  3. Front differential: U ATTESA In front there is a differential with drive shafts to the wheels. Rear-wheel drive versions have a simpler front suspension - without a differential.
  4. Stickers and nameplates: On GT-R there is always an inscription on the back "GT-R", and on 25GT-T — "25GT-T" or "twin turbo". Rear wheel drive 25GT can only have an inscription "Skyline".

Sign Rear-wheel drive (25GT) ATTESA ET-S (25GT-T) ATTESA E-TS (GT-R)
Cardan shaft Missing Present Present
Transfer case No Yes (mechanical) Yes (electronic)
ATTESA control unit No No Yes (under the console)
Inscriptions on the body "Skyline" or "25GT" "25GT-T" or "twin turbo" "GT-R"

5. Which drive is better for drifting, track and everyday driving?

The choice of drive depends on the purpose of operation. Here are the expert recommendations:

🔥 Drift

Ideal for drifting rear wheel drive (25GT). Reasons:

  • 🚗 It is easier to control skidding due to the lack of front-wheel drive.
  • 💰 Cheaper in tuning (no transfer case or viscous coupling).
  • 🔧 It’s easier to change the differential to LSD (limited slip).

🏁 Track (racing disciplines)

Optimal for the track ATTESA E-TS (GT-R):

  • 🎯 Electronic torque distribution allows you to exit turns faster.
  • 🛡️ Better directional stability at high speeds.
  • 🔧 Possibility of tuning the ECU for aggressive settings.

🚗 Everyday driving

Suitable for the city and highway ATTESA ET-S (25GT-T):

  • ❄️ Good cross-country ability in winter thanks to all-wheel drive.
  • 💨 Sufficient dynamics (turbo engine RB25DET).
  • 🔧 Easier and cheaper to maintain than E-TS.
💡

For drifting, choose the 25GT with rear-wheel drive, for the track - GT-R with ATTESA E-TS, for everyday driving - 25GT-T with ATTESA ET-S.

6. Common problems with the R34 drive and their solutions

Each drive system Skyline R34 has its own "diseases". Here's what you need to know:

🔧 ATTESA E-TS (GT-R)

  • 🔋 Failure of sensors: The most common faults are the wheel speed and steering angle sensors. Symptoms: lamp flashes ATTESA on the dashboard, the car “stumbles” when accelerating.
  • 💻 ECU failures: The control unit may fail due to oxidation of contacts or flashing. The solution is to clean the connectors or replace them with Nismo-version.
  • 🛠️ Viscous coupling wear: Over time, the clutch loses its properties, and the front axle is connected with a delay. Treated by replacing the fluid or coupling.

🔧 ATTESA ET-S (25GT-T, 25GT-X)

  • 🔥 Viscous coupling overheating: When driving aggressively, the clutch overheats and becomes blocked, which leads to the car “steering”. You need to let it cool or replace the fluid.
  • 🔗 Transfer case drive chain wear: A characteristic metallic ringing sound when moving. The solution is to replace the chain and tensioner.

🔧 Rear wheel drive (25GT)

  • 🔄 Differential wear: When drifting, the standard differential is quickly killed. Solution - installation LSD (For example, Nismo 1.5-way).
  • 🛞 Play in the cardan: Over time, vibration appears at speed. It is treated by replacing the crosspieces or cardan.

☑️ Checklist before buying an R34 with all-wheel drive

Done: 0 / 5

7. Drive tuning: what can be improved?

Transmission Skyline R34 has huge potential for modernization. Here are the popular modifications:

🔧 For ATTESA E-TS (GT-R)

  • 💻 ECU firmware: Installation Haltech or Link G4+ allows you to customize the torque distribution for a specific driving style.
  • 🔗 Reinforced viscous coupling: Replacement with Nismo-version or mechanical differential (For example, Cusco).
  • ⚙️ Short-stroke transfer case: Improves responsiveness when changing gears.

🔧 For ATTESA ET-S (25GT-T)

  • 🔥 Center differential lock: Installation 1.5-way LSD instead of viscous coupling for more predictable behavior.
  • 🛡️ Reinforced drive shafts: Standard shafts break at power above 400 hp.

🔧 For rear wheel drive (25GT)

  • 🏁 LSD differential: Optimal choice - Nismo 2-way for drifting or 1.5-way for the track.
  • 🔗 Reinforced cardan: Required for engine power above 350 hp.
  • ⚙️ Short-throw gearbox: For example, OS Giken or PPG for quick switching.

⚠️ Attention: When tuning ATTESA E-TS be sure to update the firmware ABS And VLSD (stable stability systems). Otherwise, the electronic assistants will conflict with the modified transmission, which will lead to unpredictable behavior at high speeds.

FAQ: Frequently asked questions about the Skyline R34 drive

Is it possible to install ATTESA E-TS on 25GT?

Technically yes, but it is an extremely complex and expensive process. Need:

  1. Install the transfer case from GT-R.
  2. Change the front suspension to all-wheel drive (with differential).
  3. Lay out the wiring for the control unit ATTESA.
  4. Flash the engine ECU and ABS for a new transmission.

The cost of such tuning in Russia is from 800,000 rubles (excluding donor spare parts). More often the owners 25GT limited to installation LSD and a reinforced cardan.

How often does the ATTESA ET-S need to be serviced?

Recommended service interval:

  • 🔧 Replacing the fluid in the viscous coupling - every 60,000 km.
  • 🛠️ Checking the transfer case chain - every 100,000 km.
  • 🔗 Replacement of drive shaft seals - when a leak appears.

Use only original fluid Nissan ATTESA Fluid (catalog number KE909-99931). Analogs (for example, Red Line) can lead to premature wear of the coupling.

Why does the ATTESA light come on on the GT-R?

Reasons for the lamp to light up ATTESA on the dashboard:

  • 🔋 Malfunction of the wheel speed sensor (the most common cause).
  • 💻 Failure in the control unit (diagnostics required Consult).
  • 🔗 Viscous coupling wear or low fluid level.
  • 🛠️ Damage to wiring (especially in the transfer case area).

Use a scanner for diagnostics Nissan Consult or Launch X431. Error code C1000 indicates a problem with the sensor, C1140 - a malfunction of the viscous coupling.

Which differential is best for drifting on a 25GT?

For drifting with rear wheel drive 25GT optimal:

  1. Nismo 2-way LSD — aggressive locking, suitable for professional drifting.
  2. Cusco 1.5-way LSD — softer blocking, convenient for the street and track.
  3. OS Giken Super Lock LSD - reliable and durable, but expensive option.

Recommended for beginners 1.5-way — it forgives mistakes when controlling a skid. Professionals choose 2-way for maximum control.

Is it possible to drive an R34 with a faulty ATTESA?

If the system ATTESA out of order:

  • 🚗 On GT-R with E-TS the car will switch to rear-wheel drive mode (lamp ATTESA will remain on continuously). You can drive, but handling will deteriorate.
  • 🔧 On 25GT-T with ET-S The viscous coupling may become blocked, which will lead to “steering” of the car. Driving for a long time in this mode can lead to overheating and failure of the differentials.

It is recommended to correct the problem as soon as possible. For example, a faulty viscous coupling can collapse and block the transmission, leading to an accident.