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JUN Solid Type Camshaft 66(264) 11.5 IN - RNN14 - RHDJapan

JUN Solid Type Camshaft 66(264) 11.5 IN - RNN14

23179 JPY
JUN AUTO SKU: 138418 PN: 1004M-N271R
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List Price: ¥26,400

Sale Price: ¥23,179

You Save: ¥3,221


This is designed to optimize torque and horsepower over the widest possible power band. Each Camshaft application is offered in multiple profiles, each with their own lift & duration characteristics to suit various levels of tuning.
Get this and all your JDM at RHDJapan!!
Brand: JUN AUTO
Product: Solid Type Camshaft - RNN14
Part Num: 1004M-N271R

SPECIFICATIONS:
Lead Time: Made to order 2 ~ 3 Months
Series: Regular
Lift (mm): 11.5
Duration: (66(264)
Side: IN
Valve Clearance (mm): 0.15 (cool conditions)

PRODUCT NOTES:
- Strengthened valve springs are required and sold separately at SKU 19345

FEATURES:
Discerning in Perfect Development Environment:
The cam profile which influences the performance of a Camshaft is the most important element in a Camshaft design. At JUN, the software only for cam profile designs is used, and the automatic design by the computer is performed. In order to test the cam shaft designed on the desk, the engine bench system of JUN which has combustion pressure measurement equipment is used. This system can analyze the state in a combustion room for every crankshaft angles. Various profiles can be tested.

The Profile Optimized According to the Type of Car:
Even if it says a Camshaft in a word, the profile form is various by the type of a car. Profile form is decided in consideration of the difference of valve motion method etc. (direct type, a locker arm type, strength of moving part, valve size, port and combustion room form). If depending on types of a car, a profile may be restricted by the wall in a head, lifter hole size, locker arm form, etc. At JUN, when developing a high Camshaft, the detailed data for each type of a car is taken, development is furthered simultaneously with a valve spring and retainer, and the optimal profile is determined.

The Main Point in a Development and a Design:
You have to raise 'filling efficiency', in order to obtain a high output. Being required of a cam is lengthening time which the valve's is opening. It is necessary to increase the amount of cam lifts in order to lengthen time which the valve is opening. The negative acceleration will become large if the amount of lifts is increased simply. The 'jumping phenomenon' in which a valve separates from a cam, and the 'bounce phenomenon' which is bounded when a valve contacts a valve sheet ring occur because when negative acceleration becomes large, the acceleration of a valve will exceed the acceleration of a cam. These phenomena not only spoil the performance of engine original but cause breakage of engine. The high Camshaft must realize the conflicting element with which 'extension of time which is opening the valve', and 'reduction of negative acceleration'.
JUN high Camshaft took positive acceleration large, and the action time of negative acceleration is keep a long time by shortening positive action time. By doing so, when a valve moves from opening operation to closing operation, a valve can move as smooth operation and can prevent jumping. Since positive acceleration becomes large at the side of close, the valve just before closing is added the strong brakes by the cam. The bounce phenomenon is prevented. The time near the maximum lift can be kept for a long time by opening a valve in a short time. Therefore, the good valve motion of efficiency is possible. The simulation and an experiment of the valve motion system are conducted based on such design theories, and a profile is determined. Here is the true performance for which a high lift Camshaft is asked.

Valve Springs:
When valve speed increases by high rotation of engine, 'Jumping' may occur by the factory valve springs. Moreover, since inherent pitch is low, 'Surging' may occur in a high rotation region. In JUN, the valve spring with which the load optimal at the time of a set and a valve lift is acquired was manufactured. Even when the amount of valve lifts increases by using a high cam, since the adhesion margin is secured enough, the JUN valve springs does not have degradation and its durability is also improving.

Retainers:
In order to obtain a high output, it is necessary to turn engine by high rotation. However, when using engine in a high rotation region, valve jumping becomes easy to happen and the danger of engine breakage increases. Therefore, it is required for tuned engine to make a movement part light. The role of a retainer is a stopper for valve springs, retainer needs to be extremely strong and lightweight for reliability and engine response. The JUN Titanium Valve Retainer has been developed with emphasis on both strength and weight in mind.Furthermore, the Type2 valve retainer is performing the special surface treatment. And compared with Type1 (conventional article), wear resistance of it improved very much.
Nissan Pulsar RNN14 SR20DET (08/1990-08/1992)
Nissan Pulsar RNN14 SR20DET (09/1992-01/1995)

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RHDJapan Store Reviews

very good pressure cap the only parts that i will use

Built quality is amazing as always, cusco reputation live up to it self, most of my suspension and braces are cusco and never dissapoint.. RHD Japan.. no need to say anymore, always awesome, loyal customer for 3 years and never a disappointment .. best place to get some rare Japanese made parts.. 99% of the time also with best pricing .

Awesome built quality, much better then the OEM STI ones which looks ... very inadequate.. RHD Japan awesome as always with quick response on item inquiries .. been getting car parts from these guys for 3 years and never dissapointed

I ordered the RS-Takagi side steps to replace the worn and deformed OEM side skirts on my 91 R32 GTR. The fitment was nearly perfect and only required minimal work to get them to look perfect. Once installed they are very solid which has led to the requirement that I must tell my passengers not to step on them, haha.

Yet another great product from kts and super fast delivery from rhd to the uk

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