Pre-owned NISSAN GT-R for sale Craft Sports Japan

Basics of Takumi’s overhaul

For early detection of problems and preventive maintenance, all parts are thoroughly disassembled and measured, and each part is checked with Takumi’s discerning eye.
He will also restore the engine´s performance through manual cleaning with carbon remover and sandblasting if necessary. Once performance has been carefully restored, the engine is upgraded as requested.

All wearing parts such as rubbers, O-rings, seals and gaskets, oils and greases are replaced. We do not reuse bolts that may be subject to metal fatigue. We replace them all to improve quality.
Then, he takes measures and makes adjustments based on the experience and knowledge of Takumi, the master craftsman who knows the GT-R engine inside out.

High-precision valve clearance adjustment

The Skyline GT-R was built to win races. The minimum requirement to enter Group A was to produce 2,500 units and four seats over a 12-month period. Since the engine was designed for mass production in order to participate in the race, the accuracy of the RB26 is somewhat inferior to that of the R35 VR38. In addition, the technology was not as well established as it is today. The RB26 is assembled with high precision valve clearance adjustment and assembly, incorporating the technology of today’s top-of-the-line VR38 engines.

Considering the thermal expansion, the RB26 is controlled in a room with constant temperature and humidity for 7 hours for cast iron and 4 hours for aluminum to ensure that the dimensions are in line with the design. After that, the clearance between the intake and exhaust valves is then adjusted to the micron level to ensure that all 24 valves open and close without error.

Increasing engine power aerodynamically

The key to increasing engine power is how much air (air-fuel mixture) is taken in.
The more air is taken in, the more explosive power is generated. This is why Takumi’s engine menu focuses on “aerodynamics”.
For each menu, we change the camshafts, change the fuel injection time by changing the open/close timing, adjust the ports, and so on.

Correction process for uneven stepped surface port

Parts such as cylinder heads, cylinder blocks, and manifolds are manufactured by casting.
After casting, the surface of cast products has many fine uneven areas peculiar to casting.
This surface is called the casting surface.
Since over-polishing increases the diameter, Takumi´s many years of experience and skill are used to achieve the perfect polish of the surface.
The “stepped surface” is the bumps and burrs that occur at the joints between the seat ring and cylinder during the cast cylinder head manufacturing process. If left untreated, it would affect flow and efficiency in the ports.
Our aim is to increase efficiency by increasing the inner diameter of the ring while correcting the stepped surface in the port.
This is one of the reasons why the performance is higher than when the car was new. The process is done by hand with great care by Takumi.

High-precision weight balancing to 1/100 g

The weight of the V-type engine is meticulously balanced. This is a high-precision technique mastered only by Takumi whose name remains on the VR38 engine. Accuracy of the weight balancing is 1/100 g. Even the top and bottom of the connecting rods are balanced with high precision.
This technique is also used to balance the RB 26. This is the highest precision of Takumi
who has been making the VR38 for a long time.

No need to change the automobile safety inspection certificate.

Craft Sports’ upgrade is based on the factory version, and focuses on fine-tuning. Therefore, we do not change the displacement such as cylinder block replacement, etc. All items on the menu are subject to automobile safety inspections.

Production stoppage is no longer an issue!

We have a wide range of parts in stock to ensure that our customers do not have to wait.
Based on Takumi’s many years of experience, we have a wide range of parts that are expected to be replaced.

NISMO Heritage Parts are available for discontinued parts based on original Nissan parts.
In addition, for parts that cannot be covered by original parts we use external parts as needed.

The biggest concern for Skyline GT-R owners is the discontinuation of parts. At Craft Sports, we will stock new parts while they are still available. Craft Sports will stock new parts while they are still available.

Craft Sports is a member of the Nippon Automobile Parts and Components Aftermarket Promotion Association (NAPAC).
To overcome the wave of production discontinuations, we will continue to co-develop parts with trusted manufacturers.
Only Craft Sports, the GT-R specialist dealer can do this!

VR38 DETT Engine Menu

(NISSAN GT-R R35)

New twin-turbo V6 engine designed exclusively for the R35GT-R launched in November 2007.
The engine delivers unrivaled power for a Japanese car and powerful torque from a practical rev range. The engine has been developed and designed not only for power, but also for practicality so that it can withstand circuit driving in its normal running condition. The VR38 has been improved almost every year along with the car.
The VR38 is made up of 374 parts assembled by Takumi’s hands without the use of machinery.
The skills, experience and know-how of Takumi who has been building the VR-38 are fully incorporated into our overhaul and upgrade menu, which is tailored to the model.
The fact that the VR38 set a new record at the Nürburgring of 7 minutes 8.679 seconds – the fastest time set by a production car in 2013 – is a testament to Takumiś skill.
Until MY 10, valve clearances were not adjusted at the time of manufacturer. All VR-38 engines, including those from MY 11 onwards, are supplied with high-precision valve clearance adjustment. This improves engineś quiet performance and response.

Optional Menu

This is carried out at the same time as the overhaul, so no additional time is required

Crystal Painting (RB 26 and VR 38)

Crystal paint is a special paint technique that creates a rough, unique shrink pattern, unlike normal paint which has a smooth surface.
The cover is the face of the engine compartment. It can be painted in the color of your choice to express your particular style and personality.
The paint also has the effect of reducing tappet noise as well as aesthetic appeal.