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GTR-Registry.com » Nismo Portal » Nismo R3 RB26DETT Engine

Nismo R3 RB26DETT Engine

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Fitted to: Clubman Race Spec (CRS), Customer Cars



Released in 2001, The Nismo R1 engine was released which gained ease of handling on the street by improving torque in the middle and low rpm range, port casting surface polishing & port correction processing by skilled mechanics, weight adjustment of piston connecting rod, crank & pulley integrated balancing, etc. The R1 was created with overwhelming power and high durability by combining ultra-precision work and high-performance parts.

In 2011, the R2 was developed as a normal evolution model of the R1 with the aim of improving medium-speed torque and accelerator response while maintaining high performance and durability reliability.

And in 2021, by newly adopting "R3 turbo kit" and "R35 genuine air flow meter", the peak performance of R2 is maintained, and the ease of handling on the street by improving the torque in the middle and low rev range is obtained. The R3, which has improved the torque shortage at medium and low rpm without changing the displacement, is recommended for customers who want to enjoy further evolution while retaining the original performance of the RB26.

(R1 parts shown)
Engine Model RB26DETT
"R3 (R-tune concept ENGINE Spec 3)" Specification
Total Displacement 2,568 cc
Maximum Output 450 ps
Maximum Torque 48 kg · m
R3 New Parts:  

R3 turbo kit

Compared to the conventional R1 turbo kit, the A / R of the compressor has been changed with the aim of improving torque in the mid-low speed range to improve the rise of boost pressure. As a result, the torque in the middle and low rpm range has improved to the same level as the genuine turbo, achieving both ease of handling on the street and performance and durability on the circuit.

R3 dedicated camshaft

By changing the cam profile to characteristics close to the Z-tune specifications and optimizing the working angle and valve timing, the torque in the medium speed range is greatly improved.
Genuine injector and dedicated delivery pipe for NISSAN GT-R (R35)

Uses genuine injector for NISSAN GT-R (R35) with excellent fuel atomization performance. The engine revs up lighter and the response improves. In addition, gasoline dilution is low, and it is effective in improving fuel efficiency when used in combination with low-viscosity oil.
R3 dedicated ECM
  R3 ornament
Designated oil

COMPETITION OIL type 2212E (15W50) is the designated oil.
Existing Parts from R2 Engine:  
Engine Block N1 Specification

Emphasis is placed on durability in circuit use, and an N1 engine block is used. Provides safety and reliability even under severe use conditions.
  Piston & ring (N1 specification)
  Main bearing (F112 material + new overlay plating NISMO)
  Connecting rod bearing (F112 material + new overlay plating NISMO)
  Head gasket (0.9mm metal NISMO)
  Spark plug #8 (NISMO)
  Turbo outlet (large capacity type NISMO)
  Exhaust manifold (BNR34 N1 specification)
  Heat shield tape (50mm NISMO)
  Air flow meter (Large capacity type NISMO)
  Reinforced oil pump (NISMO)
  Reinforced timing belt (Material reinforced product NISMO)
  Oil pan baffle plate (NISMO)
  Sports air filter (NISMO)
  Throttle chamber color (NISMO)
  Exhaust manifold spacer (Anti-distortion product NISMO)
  Rubber plug, hose drain, head cover washer, ring rubber (genuine product)
  Port Alignment & Manifold Stepped Correction Processing (IN & EXH;)
  Piston & connecting rod weight adjustment, crank & pulley integrated balance
  Engine bench check
  O2 sensor (BNR32 only)
Other parts check: Motion system - Crank pulley, etc
  Lubrication / cooling system - COMPETITION OIL type 2212E (15W50) (for one vehicle), radiator cap, reservoir tank, etc.
  Intake system / idle system - AAC valve, air regulator, etc.
  Fuel system - Fuel pressure regulator, fuel strainer, etc.
  Ignition system and electrical system - EGI sub-harness, coil sub-harness, oil pressure sensor, etc.
  Hose - Heater return pipe, water hose (one set), air hose (one set), oil return hose (one set), heater hose (one set), boost hose (one set), fuel hose (one set), radiator hose (one set), etc.
  Belts - Belt tensioner, idler pulley, reinforced timing belt, compressor belt, power steering belt, fan & alternator belt, etc.
  Mount related parts, etc. - Engine mount, mission mount, T / M member bush, oil seal, other short parts
Electrical system optional parts Crank angle sensor, power transistor, ignition coil, throttle sensor, O2 sensor, knock sensor
Optional Parts:  
Exhaust system NE-1 (titanium)
Price (BNR34): From 5,484,630 yen (2021)




GT-R Magazine Article


Nismo R3