JDM Garage UK


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JDM Garage UK
Specialising in used fits nissan Parts for a wide variety of Nissans, including the Skylines, GTR and 200sx/Silvias.
Genuine Tomei Japan Product
Tomei PONCAM CAMSHAFT Fits Nissan Skyline R34 GTT RB25DET NEO and Stagea
  • This is a listing for a set of Tomei Poncam Camshafts for a fits nissan Skyline R34 GTT NEO.
  • Compatiable with the RB25DET NEO engine variant.
  • PRESET VALVE TIMING.
  • STOCK VALVE SPRING COMPATIBLE.
SpecDuration IN: 252
Duration EX: 252
Max cam lift IN: 9.15
Max cam lift Ex: 9.15

High quality Tomei JAPAN item not to be confused with Tomei USA items.

More Information:
Asymmetrical G-Controlled Profile
When opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder in the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high lift without damaging the Valve System.
Maximizing the Valves Efficiency
The general purpose of engine tuning is to change the torque characteristics of the engine by changing the cams duration timing and cam lift amount for maximum torque and horse power. However tuning the engine is not only based on that. When going into finer details by maximizing the Valves efficiency is not just about timing and height lift but to also maximize the intake efficiency. The high valve lift allows huge amounts of air in but at the same time it mechanically damages the valve train and gains added friction loss. Longer cam durations and big cam lifts give deliver more power at higher engine speeds but it also gives a rough idle and at low engine speeds. Tomei engineers worked hard to produce camshafts that will deliver a well balanced profile at 1.3-1.5 times more than the stock camshaft.
Quality Control
Every camshaft is carefully built through these production processes. Plus, strict inspection will be given to them and only the highest quality products are shipped.
Surface Coating
Coating the surface of camshaft with manganese phosphate in order to protect from damage even when the camshaft has not lubricated yet. This has done by steeping press process that produces 0.5mm to 15 micromillimeter thin of manganese phosphate coating on its surface to prevent from direct contact with other metal parts while realizing smooth operation.
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.
About PONCAM:

Introduction
The development target for TOMEI’s camshaft PONCAM was “The new performance in all stages”.
Without giving partial character to the engine or relying on the setting after it is put on,it enables gaining power only by changing camshaft itself.
Not like the performance of wide angle-high RPM camshafts that gives special but partial character to the engine,PONCAM gives smooth output character and quick response which is required in today’s tuning scene.
It provides the performance of tuning camshaft in every kind of driving situation,though,it won’t make you feel stressful by falling into the unstable idle.
Features:

Valve timing adjusted
Valve timing is opening and closing timing of intake and exhaust valve that are linking to the piston movement, and it is expressed with the crankshaft angle from TDC or BDC of the piston. When installing new camshaft, idle stability or low-mid range torque are dramatically charged by 1°degree of valve timing adjustment that controls overlap or valve closing timing. Valve timing is usually adjusted by engine-tuner who is working on with the test driver. So as PONCAM, the best duration timing and the valve lifts are decided from torque characteristic and acceleration data that is based on huge numbers of tests both on the bench actual running. Accordingly, dowel pin is shifted to the proper position at the same time. You’ll get the best valve timing without any adjustment but just a replacement of the factory camshaft with PONCAM.
Easy Installation
Not to mention that easy installation of lash adjuster type, also in the solid type of RB26 engine, shim adjustment was almost made unnecessary according to the super-high precision of the size of a cam base circle.
No necessary to replace to the high performance valve spring
In the profile design of a camshaft, we succeeded in reducing the burden to a valve spring sharply by enlarging the acceleration of opening valve, while compressing the acceleration of closing valve. There is no necessity for exchange of a valve spring, if stock spring is in a usable statement at the moment of cam installation.
The performance in all stages
The biggest development target of PONCAM was acquiring the high power in all stages. In the past, gaining power at high RPM might be too persisted though; we suggest that the real tuning car should run quickly and smoothly from low RPM to high RPM. In development of PONCAM, we have tested every each models of vehicles both or the bench and actual running for the best results. It is all based on the progress of technology when has not beer realized in the past.
Extra ordinal acceleration performance
We use acceleration G sensor in the test to measure the performance of trial camshafts, and succeeded in giving the best profile that realized quick acceleration response. Installation of PONCAM lets blown engine to have quicker boost response, NA engine to improve combustion efficiency in low RPM, and any car to run much quicker.
Stable idle
PONCAM is thoroughly designed to give engine stable idle with its suitable duration timing, lift height, and the amount of over lap. Neither an engine stole nor hunching also happens by stability of an idling.
Making a good use of VVT
Variable Valve Timing is the electronic system that controls opening and closing timing of the valve to get a ideal combustion, such as NVCS of NISAN. Consequently, gaining high out put in high RPM and realizing big torque and long mileage per gas in low RPM at the same time. TOME PONCAM is also designed to make a good use of the high performance of the VVT, and enables to give engine the Surely power up from low RPM to high RPM to high RPM combined with the VVT system.
Graph above showing the difference between fixed valve timing and valuable valve timing. With IN126° of valve timing, it shows more stable idle and more out put in high RPM. And with 106°, engine performs more torque at low-mid RPM. VVT takes advantages of both of the above and shows most ideal performance.

The Best performance for ‘drift’ driving
As mentioned before, the development target of PONCAM was raising performance in all stages. In ‘drift’ driving, driver controls the vehicle’s sliding angle with a delicate accelerator work, and installation of POCAM enables ‘drift’ drivers to control the vehicle much easier with its sharp response to the input. Moreover, according to its better controllability, driver can raise the entering speed at the corner that succeeded in gaining sliding angle distance at the same time.
The best fit with bolt on turbo
Usually, installation of bolt on turbine without changing camshaft will result in the reducing torque at low RPM since there is not enough combustion occurred at low RPM with stock camshaft. With PONCAM, on the other hand, it will send enough Exhaust gas to rotate turbine ever from low RPM. (And keeps delving power until rev-limit.)
PONCAM + ADJUSTABLE CAM GEAR
Although PONCAM has given suitable valve timing, it is also possible to adjust the valve timing more specifically. Since PONCAM had been set at certain initial valve, adjustment of the valve timing can be done only by shifting cam gear along with the dial to the desirable direction, instead of using lots of measuring instruments and taking lots of times. This user adjustable character would be one of the biggest reasons to install PONCAM.
It is available to adjust the valve timing and change the engine out put characteristics by change the valve closing timing according to the initial value.
・Crank pulley left turn(Advance Valve timing)→Low end boost
・Crank pulley right turn(Delay Valve timing)→High speed gain
Payment Options
Payment
Payment must be made within 5 working days using one of the following methods PayPal, credit card (Visa, Mastercard, Switch or Visa/Delta) or bank transfer. We do not accept payment via cheque, postal order or any other means.
SHIPPING
  • We ship all items within 3 working days unless otherwise specified.
  • The listing delivery price is for shipping to the Mainland UK ONLY. This does not include Channel Islands, Northern Ireland and Scottish Highlands. Please contact us for a shipping quote to these destinations or any overseas destinations. Shipping, Handling and Insurance Fees are not negotiable.
  • We do not ship items on weekends, bank holidays or national holidays.
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  • We will ship worldwide, please email us your complete address for a quote.
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Frequently Asked Questions 
  • What can I do if the item I've received is not as described or damaged?
    Please contact us as soon as possible to make us aware of a problem, we'll do our best to solve this for you as quickly as we can.
  • When will you post my item?
    Within 3 working days, unless otherwise specified.
  • When will I receive my item?
    All Mainland UK orders are dispatched by Royal Mail First Class or City Link, depending on the size and weight of the item. You should receive your item within 1 - 2 days of dispatch. For all Offshore and International orders please contact us to find out the delivery time to your country.
  • Can I ask for a refund or replacement if I haven't received my item?
    If your item has been sent my Royal Mail you should allow 15 days from the date of dispatch before an item is considered lost. If your item has been shipped by City Link please contact us within 1 - 2 days. If you have any queries regarding your delivery please contact us.
  • Can I ask for a refund or replacement if I'm not satisfied with the item I've received?
    According to the Distance Selling Regulations you have 14 working days from the day you receive the item to cancel your order. We allow 14 DAYS for you to cancel your order and return it to us, return postage is to be paid for by yourself and we recommend suitable insurance. Once the item has been returned and checked over we will issue a refund EXCLUDING the cost to us of the original delivery charge, even if the item is listed with Free Delivery.