SHORT COMPLETE ENGINE

This short complete engine is a high performance engine which was combined with a JUN Short Head and JUN Short Block. The JUN Short Head was done high precision machining needed as tuning engine. And the JUN Short Block was built in the Custom Kit EX 4.0L, and cylinder liners for expansion cylinder.

SPECS

BORExSTROKE:

96.0mmx92.0mm

DISPLACEMENT:

3996cc

COMP.RATIO:

8.7 : 1

Camshaft:

272-10.8

Valve spring:

JUN Reinforced

Valve retainer:

JUN Titanium (Type2)

Valve guide:

JUN PBB

Head gasket:

Stock t=0.7mm

Piston:

JUN Forged Al (4.0L Kit)

Rod:

JUN I-Beam (4.0L Kit)

Crankshaft:

JUN Billet (4.0L Kit)

Cylinder:

Cyln. Linder

Bearings:

Stock

SHORT HEAD

The short head has two kinds for your driving stages. The BASIC type was done minimum processing for adjusting uneven quality of factory parts. And, the EX type incorporated special parts and processing recommended by JUN. These are pre-assembled head which was put together until camshafts.

SHORT BLOCK

This short block built in the Custom Kit EX 4.0L. And, it puts in the cylinder liner for expansion cylinder. We assembled the short-block by the most suitable clearances which has safe margin on the high revolution.

SPECS

BORExSTROKE:

96.0mmx92.0mm

DISPLACEMENT:

3996cc

COMP.RATIO:

8.8 : 1 (gkt=0.7mm)

Piston:

JUN Forged Al (4.0L Kit)

Rod:

JUN I-Beam (4.0L Kit)

Crankshaft:

JUN Billet (4.0L Kit)

Cylinder:

Cyln. Linder

Bearings:

Stock

CUSTOM KIT EX 4.0L

This Custom Kit for VR38DETT expands engine displacement by enlarged bore and stroker. The engine displacement is 3996cc.

• This kit require to install cylinder liner.

SPECS

BORExSTROKE:

96.0mmx92.0mm

DISPLACEMENT:

3996cc

COMP.RATIO:

8.8 : 1 (gkt=0.7mm)

FORGED ALUMINUM PISTON KIT

The stock bore size piston kit will be able to install stock cylinder without boring and honing machining. This piston was made from the excellent forged material same as the piston so far. So, it will be able to say as the high-end piston which can show durability and performance more than enough for the high spec engine of VR38DETT.

• Oversize piston requires cylinder liner.
• Dynamic balancing of crankshaft is necessary.

I-BEAM CONNECTING ROD

The JUN connecting rod is made by shaving in order to pursue lightness and strength, this form has no futility. The material of a connecting rod is used SCM440. And connecting rod bolts are made by ARP. If big end is transformed at the time of high rotation, a metal will burn. In order to prevent the phenomenon, it was made the form which distributes stress.

CYLINDER LINER KIT

Since VR38DETT is an aluminum block engine surface-treated by plasma spraying, oversized piston can not be assembled by the usual method. By inserting this liner in the cylinder it becomes possible to incorporate more pistons than the stock bores. We line up cast iron liners that can handle various bore sizes and aluminum liners with target bore narrowed down. Please use them for assembly of oversized piston, upward displacement or block regeneration.

HIGH LIFT CAMSHAFT - BOLT-ON SERIES

This camshaft can use with your stock computer. And, you don't need to change your stock valve spring. This camshaft is a so-called the bolt-on camshaft. Although the vehicle ups the torque by exchanging the camshaft only, it will be able to get more power if you upgrade intake / exhaust parts and boost-up on the ECU. Our test vehicle displayed plus 100 whp

• The camshaft which is 10.4mm or higher lift of the profile cannot use together with stock valve spring.

UPRATED VALVE SPRING SET

Close adhesion between coil line will occur when the stock valve spring use together with high lift camshafts in a Nissan VR38DETT engine. Even if the coil line thin prepare as the simple way of solving it, it doesn't show enough load and strength. So, we designed special valve spring to get enough load and strength with thick coil line, and also designed special (offsetting) valve retainer. This valve spring set is a product which is including specail valve spring and special valve retainer (Type2).

REINFORCED VALVE GUIDE

The JUN Racing Valve Guide is improved its strength and heat conduction by using raw material, phosphorus-bronze. This therefore avoid the any damage from high rotation of tuned engine. We recommend our valve guides when you overhaul your cylinder head.

REINFORCED HEAD BOLT

The high-boost and high-compression engine tends to occur distortion between the cylinder head and the cylinder block as a junction part of combustion chamber. We are providing the product which is supplied from ARP Racing USA.

REINFORCED CRANK MAIN CAP BOLT

Crankshaft is one of the crucial part that have weighing by combustion power that changed rotation. Crank Main Cap Stud Bolt is a shaft bearing part of crank shaft that fixes a block and a cap connecting together. If this part gets thermal expansion a crank housing could not be kept in circular shape and it could be possible to get scorching. We are providing the product which is supplied from ARP Racing USA.

GT SURGE TANK

The stock surge tank is short of ability when your engine became high power. The capacity of the collector tank uprated 200% compared with stock surge tank. Moreover, it increased the power and torque from low-middle speed until high rev. It was achieved by extended length of intake manifold and by made funnels inside the collector tank. The position of throttle body was moved from stock position but can install it easily by a little modification of the intake pipe. And, it doesn't interfere with bonnet hood. You will be able to get more power by using together with the our big throttle body.

BIG THROTTLE BODY

This product expanded 2mm diameter which was considered balance between performance and durability. And, the throttle body inside wall was regrind. Moreover, the butterfly spindle was made thin for reducing inhalation resistance. We will machine your throttle body you sent.

GT3076R TURBINE KIT

This turbine kit will big upgrade Nissan GT-R (R35). Your R35 will get power extremely beyond the stock turbine by using Garrett turbochargers.
Choose the turbochargers from GT3076R or GTX3582R.

• The price of setup kit is not including turbochargers. Choose turbochargers when you purchase. We estimate the cost of turbochargers when you ask.

RADIATOR RESERVOIR TANK

The stock radiator reservoir tank is made from plastic. This product will improve durability and atmosphere of engine room by replacing to the aluminum product. Partitions were made inside the tank to prevent the mixture of the air. The level gauge placed on outside. It was made from stainless steel which is able to withstand high pressure and high temperature. The radiator cap which is 1.3kg/cm² opening pressure is attached.

RADIATOR CAP

This radiator cap uprates the pressure of release valve. That result, boiling point of coolant is raised by increases pressure of piping. By this, it raises the cooling efficiency of the radiator, and will repress overheat.

OIL FILLER CAP

Aluminum shaving oil filler cap with JUN logo will produce the engine room sporty. There are five colour variations; purple, gold, red, blue and silver.

EXTERIORS 1

There are the original aero parts by JUN. They have the beautility and the impressive appearance.

EXTERIORS 2

There are the original aero parts by JUN. Here we introduce the wide body kit to correspond to the wide tire.

UNIVERSAL FRONT DIFFUSER

An air pocket in central part amplifies incoming air from bottom of front bumper temporarily and the compressed air quickens speed, and it is drained behind your vehicle. Strakes before front wheels reduce turbulence by the tires, and the air deflects to center of vehicle. The quickened air makes down force occur through bottom of vehicle. Moreover by the type of vehicle, this diffuser has effect which lowers water and intake temperature because it pulls out heat from engine room.