What engine is installed on the Nissan GT-R: a complete guide to modifications and characteristics

If you are wondering which engine is on Nissan GT-R, then you've come to the right place. Nicknamed "Godzilla" for its power and dominance on the track, this supercar is famous not only for its aggressive design, but also for its legendary powertrains. From cult RB26DETT to modern VR38DETT - each GT-R engine has become a symbol of engineering excellence Nissan.

In this article we will analyze all the engines that were installed on GT-R for its history: from the first models Skyline GT-R (R32-R34) to current versions R35. You will learn about technical characteristics, weak points, tuning potential and how to distinguish an original engine from a fake. And if you are planning a purchase, we will tell you what to look for when choosing between different generations.

1. Nissan GT-R engines: evolution from R32 to R35

History GT-R dates back more than 50 years, but the model’s real fame came from engines developed in the 1980s–2000s. In total, it was installed on production versions 4 main types of motors, each of which had unique features:

• 🔥 RB20DET (1989–1993, R32) - the first turbocharged engine in the line, producing 215 hp.
• ⚡ RB26DETT (1989–2002, R32–R34) — the legendary “two-liter monster” with twin turbocharging (280–330 hp).
• 💎 VR38DETT (2007-present, R35) - modern 3.8-liter V6 with an aluminum block (480-720 hp).
• 🚀 VR38DETT (Nismo) — forced version for track modifications (600+ hp).

Interestingly, until 2007 GT-R officially sold only in Japan under the brand name Skyline. Only with the exit R35 the model has become global, and the engine VR38DETT - the brand's calling card. Today original RB26DETT are considered a rarity: their price on the secondary market can exceed the cost of the R32/R34 car itself.

2. RB26DETT: legendary Skyline GT-R engine (R32–R34)

RB26DETT - it's not just an engine, but cult symbol Japanese motorsport. Developed in the late 1980s, it became the basis for victories Skyline GT-R in racing JTCC And 24 Hours of Le Mans. Here are its key features:

• 🔧 Volume and design: 2.6 L, inline 6-cylinder cast iron block, aluminum heads with system DOHC (24 valves).
• 🌀 Turbocharging: two turbochargers Garrett T25 (on R32) or T28 (on R34), working in series.
• ⚡ Power: officially 280 hp (due to the Japanese “gentleman’s agreement”), realistically - 320–330 hp.
• 🛡️ Resource: with proper maintenance, mileage before major repairs - 200,000+ km.

Main advantage RB26DETT — safety margin. The cylinder block can withstand up to 1000 hp after tuning, and the lubrication and cooling system is designed for extreme loads. However, there are also weaknesses:

⚠️ Attention: On motors R32/R33 often wear out T25 turbines after 100,000 km. Replacing them with T28 (from R34) solves the problem, but requires reconfiguring the ECU.

Today original RB26DETT with low mileage cost from $15,000 to $30,000 - more than many used ones Skyline GT-R. The reason is demand among tuners and collectors. If you are looking for such a motor, check out:

The engine number (on the block under the intake manifold) must match the vehicle's VIN|

The original turbines are engraved Nissan or Garrett|

Block heads must be marked RB26 (not RB25!)|

Check availability individual throttle valves (ITB) - they are not on fakes -->

3. VR38DETT: the heart of the modern GT-R (R35)

With the exit Nissan GT-R R35 in 2007 the company introduced a completely new engine - VR38DETT. This is a 3.8-liter V6 with twin turbocharging, which became the first production engine Nissan with aluminum block And direct fuel injection.

Key Features:

Parameter	GT-R R35 (2007–2016)	GT-R R35 (2017–present)	GT-R Nismo
Volume	3,799 cm³	3,799 cm³	3,799 cm³
Power	480–550 hp	570–600 hp	600–720 hp
Torque	588–632 Nm	637–652 Nm	652–780 Nm
Turbines	IHI RHF55	IHI RHF5HB (improved)	IHI RHF5HB + reinforced shafts

Main difference VR38DETT from RB26DETT — manufacturability. Used here:

• 🔥 Variable valve timing system (VVEL) at the inlet and outlet.
• ⚡ Direct fuel injection (up to 200 bar pressure) for better mixture formation.
• 🛡️ Reinforced crankshaft and connecting rods made of forged steel (withstands up to 800 hp in stock).

However, VR38DETT there are also disadvantages. For example, aluminum block less maintainable than cast iron RB26, and the system VVEL requires expensive maintenance. In addition, the engine is sensitive to oil quality:

⚠️ Attention: Use oil with higher viscosity 5W-40 or lower 0W-30 leads to accelerated wear of turbines And timing chains. Nissan recommends only Nismo Oil 5W-40 or analogues with approval API SN+.

4. Comparison of RB26DETT and VR38DETT: which engine is better?

Choice between RB26DETT And VR38DETT depends on your goals. If you appreciate classics and tuning potential, then RB26 - ideal option. If needed modern technology and reliability, then VR38 out of competition. Let's compare them based on key parameters:

Criterion	RB26DETT (R32–R34)	VR38DETT (R35)
Maximum power in stock	330 hp	600 hp (Nismo)
Tuning potential	Up to 1000+ hp (when replacing the block)	Up to 1200 hp (with reinforced block)
Resource to capital	200,000–250,000 km	150,000–200,000 km
Repair cost	High (shortage of spare parts)	Average (but expensive service)
Typical problems	Worn turbines, oil leak from under the valve cover	Timing chain stretch, rings stuck

One of the main myths is that VR38DETT "weaker" RB26DETT in terms of reliability. In fact, with proper maintenance, both engines run for a long time, but VR38 requires more frequent oil changes (every 5,000 km versus 10,000 km RB26).

But as for drive, here opinions differ. Owners R32–R34 praise RB26 for linear return And sound, and the fans R35 - for instant response of turbines And electronics, which helps control power. Which engine is better for you?

5. Other GT-R engines: RB20DET and special versions

Besides RB26DETT And VR38DETT, on GT-R Other motors were also installed. For example, RB20DET — the first turbocharged engine in the line Skyline, which was installed on earlier versions R32 (1989–1993). Its characteristics are more modest:

• 🔧 Volume: 2.0 l, power: 215 hp.
• 🌀 Turbine: one Garrett T25 (instead of two on RB26).
• ⚡ Potential: up to 300–350 hp after tuning.

There are also unique versions:

• 🏁 RB26DETT (N1) — racing modification for JGTC with a lightweight block and reinforced connecting rods.
• 💥 VR38DETT (Spec-V) - version for GT-R Spec-V with titanium valves and improved turbines.
• 🔥 VR38DETT (Time Attack) — track engines with power up to 1000 hp. (for example, at GT-R by AMS Performance).

Fun fact: in 2020 Nissan presented GT-R prototype with hybrid powertrain (VR38DETT + electric motor), but it did not go into production. Perhaps future generations GT-R will receive hybrid or even fully electric engines.

Why the RB26DETT is called "unkillable"

Original block RB26 cast from high-strength cast iron with the addition molybdenum, which makes it resistant to deformation even under extreme loads. In addition, the lubrication system with dry sump (on racing versions) prevents oil starvation at high speeds. This is why engines with 300,000+ km mileage are still found on the tracks.

6. Tuning GT-R engines: what can be done?

Both engines - RB26DETT And VR38DETT - have huge potential for modifications. Let's consider the main areas of tuning:

For RB26DETT:

• 🔥 Volume increase: block boring up to 2.8 l (RB30) or replacing the crankshaft with stroke-kit (up to 3.0 l).
• 🌀 Turbines: replacing stock T28 on Garrett GTX3582R or BorgWarner EFR.
• ⚡ ECU: installation Haltech Elite or AEM Infinity for flexible customization.

For VR38DETT:

• 💎 Block Strengthening: forged pistons JE or Wiseco, connecting rods Manley.
• 🛡️ Fuel system: injectors ID1300 + two fuel pumps Walbro 450.
• 🚀 Turbines: upgrade to Precision 5862 or Turbonetics for power 800+ hp

The cost of full tuning can reach $50,000–$100,000, but the result is worth it. For example, GT-R R35 from AMS Performance with motor VR38DETT develops 2,000 hp and accelerates to 100 km/h in 1.5 seconds!

⚠️ Attention: When tuning VR38DETT be sure to upgrade cooling system — stock radiators cannot cope with heat dissipation at power above 700 hp. Optimal solution: Mishimoto aluminum radiator + additional oil cooler.

7. Which GT-R engine should you buy?

If you are planning to buy Nissan GT-R, the choice of engine depends on the budget and goals:

• 💰 Budget up to $30,000: search Skyline GT-R R32/R33 with RB26DETT. Pay attention to the condition of the turbines and compression.
• 💵 Budget $50,000–$80,000: R34 GT-R with the original RB26 or R35 2007–2011 from VR38DETT.
• 💎 Budget $100,000+: GT-R Nismo (2014–2021) with forced VR38DETT or restyling R35 (2017+).

Before purchasing be sure to:

1. Check compression in cylinders (must be at least 12 bar).
2. Inspect turbines for play and oil leaks.
3. Make sure timing chain (on VR38) or belt (on RB26) were replaced no later than 60,000 km ago.
4. Request service history — records of oil and antifreeze changes are especially important.

If you choose between R34 And R35, please note:

• 🔧 R34 (RB26) Cheaper to purchase, but more expensive to maintain (shortage of spare parts).
• ⚡ R35 (VR38) more technologically advanced and more powerful, but repairs are 1.5–2 times more expensive.

FAQ: Frequently asked questions about Nissan GT-R engines

❓ Is it possible to put VR38DETT instead of RB26DETT in Skyline GT-R?

Technically yes, but this is an extremely complex and expensive project. You will need:

• Edit engine mounts And gearbox (on R32–R34 it is Getrag, on R35 - GR6).
• Adapt electronics (ECU, sensors, harnesses).
• Modify cooling system And release.

The cost of such a swap starts from $30,000, therefore it is more advisable to buy ready-made R35.

❓ What is the resource of the timing chain on VR38DETT?

Official regulations Nissan - chain replacement every 100,000 km, but in practice it begins to stretch after 60,000–80,000 km. Signs of wear:

• Knock on cold start.
• Rough operation at idle.
• Error P0011 (camshaft phase shift).

Replacing a chain with tensioners and dampers costs $2,000–3,500.

❓ Why was the RB26DETT limited to 280 hp?

In the 1980s and 1990s, Japanese automakers voluntarily limited the power of production vehicles to 280 hp (the so-called "gentlemen's agreement"). However, the real power RB26DETT amounted to 320–330 hp, which is confirmed by dynamometer tests.

To bypass the limitation, Nissan underestimated the indicators in the documentation, but left a margin of safety for tuning.

❓ What kind of oil should I use in VR38DETT?

Nissan recommends only synthetic oil with approval API SN+ and viscosity:

• 5W-40 - for temperate climates.
• 0W-40 — for cold regions (below –20°C).
• 10W-40 — for hot climates (above +30°C).

Best options:

• Nismo Pro R 5W-40 (original).
• Motul 300V 5W-40 (for track).
• Liqui Moly Synthoil Race Tech GT1 10W-60 (for extreme loads).

❓ How much does a major overhaul of an RB26DETT cost?

The cost depends on the amount of work:

• Easy repair (replacement of rings, seals, valves): 3 000–5 000 $.
• Complete overhaul (block boring, replacement of liners, turbines): 8 000–12 000 $.
• Swap to a new block (with spare parts): 15 000–25 000 $.

The main expense item is turbines ($1,500–$3,000 per couple) and cylinder head (repair or replacement costs $2,000–$4,000).