Tomei PONCAM / PROCAM Camshafts For Nissan Skyline R34 GTT RB25DET NEO

Introducing the Tomei Japan CAMSHAFT for NISSAN RB25 NEO Engines. 

If you're seeking to elevate the performance of your NISSAN RB25 NEO engine, look no further than the Tomei Japan Camshaft collection. Crafted with precision engineering and backed by decades of motorsport expertise, these camshafts are the definitive choice for enthusiasts and professionals alike.

Engine: Nissan RB25DET NEO

Cam Lift: Unleash the potential of your engine with impressive cam lifts of up to 8.50mm, 9.15mm, 9.25mm & 10.25mm, depending on your desired performance level.

Duration: With options ranging from 252 to 270 degrees, these camshafts offer a spectrum of performance capabilities to match your driving needs.

Precision Engineering: Meticulously designed and manufactured, each camshaft is a masterpiece of engineering. 

Quality Guaranteed: Each camshaft comes stamped with the trusted Tomei Japan name – a symbol of performance, quality, and innovation. Backed by years of research and development, these camshafts are the embodiment of excellence.

Easy Upgrade: With clear part numbers for each specification, choosing the ideal camshaft for your NISSAN RB engine has never been easier.

Applications:

Nissan Skyline R34 GTT RB25DET NEO

Please Note:

Poncam

PRESET VALVE TIMING

STOCK VALVE SPRING COMPATIBLE

WGNC34: 1st;1996.10 - 2nd;1997.9 - 3rd;1998.8.31 -

ECR33: 1st;1993.8 - 2nd;1997.9 - (for early crank angle sensor (CAS) see our other listing)

Procam

Special valve spring, solid lifter and adjust shim may be required for some models.

※PRESET VALVE TIMING
※STOCK VALVE SPRING COMPATIBLE
※WGNC34: 1st;1996.10 - 2nd;1997.9 - 3rd;1998.8.31 -
※ECR33: 1st;1993.8 - 2nd;1997.9 - (changed crank angle sensor)

●About types for RB25 NEOstaight6

・ Type A
In order to get stable idle and raise low-mid RPM torque, we set the duration of EX camshaft shorter.
Best suit used with stock turbine or N1 turbine.

・Type B
By giving longer duration timing than type a, it eables to raise both response and peak power at the same time, even with mid-large sized turbine.

 

■ SPEC

Factory Camshaft specs

RB25DE(T)

• IN/EX 256-8.50 R33 Early model
• IN/EX 256-8.50 R33 Late model
• TYPE A IN/EX 252-9.15 R34
• TYPE B IN/EX 260-9.15 R34
• IN/EX 252-9.15 R34
• IN/EX 256-8.50 R33 Early model
• IN/EX 256-8.50 R33 Late model
• IN/EX 260-9.15 R34
• IN/EX 260-9.25 SOLID R33 Early model
• IN/EX 260-9.25 SOLID R33 Late model
• IN/EX 260-10.25 SOLID R33 Early model
• IN/EX 260-10.25 SOLID R33 Late model
• IN/EX 270-9.25 SOLID R33 Early model
• IN/EX 270-9.25 SOLID R33 Late model
• IN/EX 270-10.25 SOLID R33 Early model
• IN/EX 270-10.25 SOLID R33 Late model

CNC Super Precise High Speed Grinding

 
The combination of a ultra high-speed main bearing and diamond grindstone is controlled by the computer. By using the same special-purpose machine as an automaker, high precision grinding is realized though in 1/3 period of time. Consequently, incredible accuracy of profile and remarkable price were realized at the same time.

Wavy Groove Finish by Oscillation Grinding
 
Wavy groove is curved to the cam profile surface by oscillation during cam grinding process. Oil pool that is formed on the cam profile surface reduces a friction loss and prevents locking.

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Any prices listed in these manuals may be outdated as they can change at anytime without prior notification. The updated part numbers and or prices will be listed on our website.

The TOMEI MANUALS are only a basic guide for the installation of the TOMEI products, these manuals do require to be used with the official vehicles manufactures service manual to properly guide the installation process.

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Keiichi Suzuki was a NISSAN Works Team Driver as well as a mechanic, and other “JOHOKU RIDERS” launched “TOMEI MOTOR Inc”.
That’s right,”TOMEI” was created as a consequence of those car guys gathered.

Although “TOMEI MOTOR Inc.”later changed its name to “TOMEI POWERED”,
its spirit and passion has been inherited, just for more powerful and stronger engine.

In the very beginning we started of as a racing constructor of NISSAN type engines only and since day one we have produced & tuned many racing engines.
Our standard procedures with the biginning of each new engine development, is to thoroughly inspect each engine component thoroughli for every aspevt of each part after disassembling and cleaning each part.
This is our daily routine and habit.
We foumd this to be the best procedure to find and address the engines good points, weak points and it helps us to accurately re-evaluate it for its new purpose.
We then rebuild it and make it close to the original but a new stronger complete ideal balanced engine.
This is the basic procedures of our complete engine development.
We now make many complete engines of various brands and we’re not only limited to NISSAN engines.
But our procedures and goals remain the same since day one. We never neglect anyone nor do we risk taking any shortcuts as to make a better engine will always take time to forge every engine to perfection.

The end result is a complete product which has passed all these enduring processes to bring the best performance available that both we and the end user can be proud of and have every bit of confidence in our products and their cars performance.

TOMEI will keep challenging to make you satisfied.

Thank you very much for your continued support

As we have already announced, the original products of Tomei Powered USA Inc. starting with “T” in their part numbers are not designed, supervised, tested, manufactured or quality checked by us Tomei Powered Inc.

Now from March 2019, everything not only the “T” items Tomei Powered USA Inc. sells is their original product which is not from us Tomei Powered Inc. since the license contract we made with Tomei Powered USA Inc. has now expired as of the 28th of February 2019.

Please be advised we do not take any responsibility and we are not liable for any damage or loss through use of the original products of Tomei Powered USA Inc.

We sincerely apologize for any inconvenience this may cause, and much appreciate your understanding in this matter.