SUBARU IMPREZA STi Version

JUN GRB

JUN EVOX Advanced spec MAX Power and Torque @ Boost 1.6kg/cm2 630ps/7780rpm : 67.48kg-m / 5300rpm
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PRODUCT LIST for SUBARU GDB & GRB

  • CUSTOM KIT EX 2.2L

CUSTOM KIT EX 2.2L

This Custom Kit for EJ20 expands engine displacement by enlarged bore and stroker. The engine displacement is 2123cc. The JUN Custom Kit provides more power and torque capabilities of your Stroker Assemblies - Includes the Billet Crankshaft, the C-Series Piston Kit, and the I-beam Connecting rods. The lightweight, high strength, and rate of balance of those parts are improving. The high response is offered. You can use broadly in various fields as circuit, drag race etc.

Bore x Stroke : 92.5mm x 79.0mm
E/G Displacement : 2123cc

MSRP: JPY540,000yen

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  • FORGED ALUMINUM PISTON KIT

FORGED ALUMINUM PISTON KIT

We got the cooperation of the Cosworth in UK, and expanded the line-up of the piston. This C series is an excellent product in the cost performance. It is an excellent piston in the durability because it is the design which has a few loads that heat efficiency was put on the emphasis. We made many types of vehicle and bore size. A choice in your needs will be able to be done.

C-Series

Bore : 92.5mm

MSRP: JPY194,400yen

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  • I-BEAM CONNECTING ROD

* The pictures are for the other vehicle.

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.

MSRP: JPY142,560yen

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  • HIGH LIFT CAMSHAFT

HIGH LIFT CAMSHAFT

This camshaft was ground from forged material which was designed for EJ207 engine. The form (profile) will become the best logically because cam design has flexibility by grinding from material.

Bolt-on Camshaft Series GRB

IN:65(260)-10.0 EX:66(264)-10.8

MSRP: JPY54,000yen

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Bolt-on Camshaft Series GDB

64(256)-9.0

Intake MSRP: JPY69,120yen

Exhaust MSRP: JPY54,000yen

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Regular Camshaft Series GDB

66(264)-9.5
68(272)-10.3

Intake MSRP: JPY69,120yen

Exhaust MSRP: JPY54,000yen

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  • CAM SPROCKET

ADJUSTABLE CAM SLIDE SPROCKET

JUN cam slide sprocket will adjust the best valve timing when you change camshaft and/or do engine tuning. Also, it is able to correct off valve timing according to resurfacing cylinder head when overhaul.

GDB

Left INT MSRP: JPY45,360yen/pc.

Right INT MSRP: JPY45,360yen/pc.

Left EXH MSRP: JPY21,600yen/pc.

Right EXH MSRP: JPY21,600yen/pc.

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* This product can work with AVCS.

* The price shows 1 piece. Must change whole cam gears.

  • TITANIUM VALVE RETAINER
  • TITANIUM VALVE RETAINER

TITANIUM VALVE RETAINER

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.

Type 1 JPY47,520yen

Type 2 JPY62,640yen

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  • REINFORCED VALVE GUIDE

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.

Phosphor bronze JPY30,240yen

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  • CYLINDER HEAD BOLT

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.

Stud type JPY69,120yen

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  • CRANK MAIN CAP STUD

* The pictures are for the other vehicle.

REINFORCED CRANK CASE 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.

Stud type JPY88,560yen

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  • CONNECTING ROD BOLT

* The pictures are for the other vehicle.

REINFORCEMENT CONNECTING ROD BOLT

Unquestionably the most important fasteners in any engine are the connecting rod bolts, as they hold the key to the entire rotating assembly.

MSRP: JPY28,080yen

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  • BAFFLED OIL PAN

BAFFLED OIL PAN

In the race scene to repeat rapidly acceleration, slowdown, and turn, a strainer cannot suck in oil with the stock oil pan without partitions because lubricating oil has always clustered on one side of the oil pan. This baffled oil pan always can keep a strainer into the oil surface because it prevents to lean the oil by making a partition in an oil pan.

GDB Applied A-B MSRP: JPY45,360yen

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  • OIL PUMP

HIGH FLOW OIL PUMP

JUN developed High flow oil pumps for the engine which may become lack of oil quantity when high revolution. With a tuning engine overusing high revolution, lack of oil becomes a serious problem. We designed new gears in the oil pumps to increase flowing oil quantity. Use our oil pump before the trouble occurred around turbines or crank.

MSRP: JPY105,840yen

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  • SHORT HEAD

* The pictures are for the other vehicle.

SHORT HEAD ASSEMBLY

We prepared simple short cylinder head as base of tuning. 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 valve springs.

GDB BASIC Type MSRP: discontinuedyen

GDB EX Type MSRP: ASK

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  • SHORT BLOCK
  • SHORT BLOCK
  • SHORT BLOCK

SHORT BLOCK ASSEMBLY

We prepared simple short cylinder block as base of tuning. The short block 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 block which was done some required working of adjusting bearings, adjusting gap of piston rings, and assembling pistons, rods, and a crankshaft to a short block.

BASIC Type MSRP: discontinuedyen

EX Type MSRP: ASK

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  • FLYWHEEL

FORGED CHROMOLY FLYWHEEL

JUN could achieve manufacturing its original flywheels about 200% more strength compared with normal flywheels. It was forged using Chrome-molybdenum steel. The power of inertia rotation can be decreased by reducing the excess weight, and therefore, its strength directly passed through to the high response.

Lightweight: JPY45,360yen

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  • CLUCH KIT with S-METAL DISC
  • CLUCH KIT with SPORT DISC
  • * The pictures are for the other vehicle.

SINGLE SPORT CLUTCH KIT

The JUN clutch kits can strengthen your drive train all at once because all of our clutch kit contains clutch disc, clutch cover, and lightweight flywheel. Our new lineups which are the clutch disc and the clutch cover have strength enough for the race scene.

Sport disc w/ Lightweight flywheel: JPY115,560yen

S-Metal disc w/ Lightweight flywheel: JPY118,800yen

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  • SURGE TANK

SURGE TANK

This surge tank makes up for the shortage of the tank capacity that it was caused by a soup up engine. And, the surge tank will be able to improve the response and the loss of intake by shortened intake pipe because it can attach to the reverse direction.

* Must move the place of the turbine and the intercooler.

* Must move the alternator when you attach to the reverse direction.

* Must consider the layout of parts because this product is not a bolt-on type.

* This product is only the surge tank body. It is not including throttle, idle control valve, gaskets, and the others.

GDB MSRP: JPY318,600yen

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  • ALUMINUM SUCTION PIPE KIT
  • ALUMINUM SUCTION PIPE KIT

ALUMINUM SUCTION PIPE KIT

This suction pipe kit contains air-flow adapter and air cleaner. The considerable power loss occurs in the stock cleaner box by the inhalation resistance. The un-covered air cleaner and the air-flow adapter will attain the superior power. And, the atmosphere of the engine room is favored by buffing aluminium pipes and silicone hoses.
The stock ECU doesn't become an errand thing because this kit makes high air flow. We are preparing ECU which was written special data.

GRB

KIT A MSRP: JPY41,040yen

KIT A + ECU MSRP: JPY138,240yen

KIT B MSRP: JPY54,000yen

KIT B + ECU MSRP: JPY151,200yen

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* The kit which is including the Sport computer needs your vehicle.

  • TURBINE ADAPTER

TURBINE ADAPTER

The exhaust manifold of the horizontal engine was not able to do exchange of a turbine for a special layout easily. This adapter is a part supporting adapting of TD05/06 (Westgate type).

* Movement of an intercooler and production of pipes are necessary.

* GRB cannot install the 25G-compressor with this turbine adapter.

GDB/GRB MSRP: JPY51,840yen

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  • UPRATED TURBO ACTUATOR
  • UPRATED TURBO ACTUATOR

UPRATED TURBO ACTUATOR

This is an uprated turbo actuator which can adjust working pressure from 1.0 to 1.3 kgf/cm2. This turbo actuator will prevent declining of boost pressure when high rev and boost. You can install by bolt-on because the actuator is designed by same form as a factory one.

GDB(A-B) MSRP: JPY33,480yen

GDB(C-G) MSRP: JPY33,480yen

GRB MSRP: JPY33,480yen

GRF MSRP: JPY33,480yen

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  • RADIATOR CAP

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.

Type S (1.3, 1.5kg/cm2)
Type N (1.3kg/cm2)

MSRP: JPY3,024yen

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  • SPORT COMPUTER

* The pictures are for the other vehicle.

SPORT COMPUTER

This is a sport computer with the ability to cope with high boost pressure. And this computer becomes the specifications which are the most suitable for sport driving by optimization of A/F, boost control, and throttle data. And, low fuel cost driving in the street is possible because control by SI-DRIVE is left.

* It cannot buy by mail order because your vehicle is necessary to change data.

* This product needs your stock computer. You need to send your computer to us when you buy.

GRB MSRP: JPY105,840yen

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  • SIDE SILLS FOAMING URETHANE REINFORCEMENT KIT

SIDE SILLS FOAMING URETHANE KIT

This new reinforcement method makes high rigidity feel simply, so that it reverses old common sense. The car which performed urethane body reinforcement can feel the difference, when it get in and departs, you feel a motion of a car. The car which has constructed the roll cage etc. is still more effective. Although there is a difference in the ratio of an effect also by the new car or the old vehicle, rigidity is raised certainly.

MSRP: JPY32,400yen

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  • UNIVERSAL REAR SEAT BOARD

UNIVERSAL REAR SEAT BOARD

After a rear seat is removed, this product is used as a bulkhead. The Universal Rear Seat Board will make a stylish cockpit without weight because it was made by the carbon. Cut these boards along the form of your car, and use.

* Shape it to the form of your car

MSRP: JPY32,400yen

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  • FRONT VIEW
  • FRONT BUMPER
  • EYE LINER

EXTERIORS

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

GDB Front Bumper: JPY92,880yen

GDB Eye Liner: JPY12,960yen

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  • UNIVERSAL FRONT DIFFUSER

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.

MSRP: JPY47,520yen

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  • CUSTOM KIT EX 2.2L
  • FORGED ALUMINUM PISTON KIT
  • I-BEAM CONNECTING ROD
  • HIGH LIFT CAMSHAFT
  • CAM SPROCKET
  • TITANIUM VALVE RETAINER
  • REINFORCED VALVE GUIDE
  • REINFORCED HEAD BOLT
  • REINFORCED CRANK CASE BOLT
  • REINFORCED CONNECTING ROD BOLT
  • BAFFLED OIL PAN
  • OIL PUMP
  • SHORT HEAD
  • SHORT BLOCK
  • FORGED CHROMOLY FLYWHEEL
  • SINGLE SPORT CLUTCH KIT
  • MODIFIED INTAKE MANIFOLD
  • ALUMINUM SUCTION PIPE KIT
  • TURBINE ADAPTER
  • UPRATED TURBO ACTUATOR
  • RADIATOR CAP
  • SPORT COMPUTER
  • FOAMING URETHANE REINFORCEMENT KIT
  • UNIVERSAL REAR SEAT BOARD
  • EXTERIORS
  • EXTERIORS

JUN GRB

  • NOV 2010 SPEC

NOV 2010

BASIC DATA

Name
JUN GRB street spec
Vehicle
SUBARU IMPREZA STi
Model
GRB
Engine
EJ207

ENGINE DATA

Bore x Stroke
92.0 x 79.0 (mm)
Comp. Ratio
8.2 : 1
Displacement
2123cc
Piston
JUN Forged Aluminum
Crank shaft
JUN Billet
Rod
JUN I-Beam
Camshaft
JUN 65-10.0 / 66-10.8
Head Gasket
Stock

EXTERNAL ENGINE

Turbine
TRUST T518Z
Boost
1.6kg/cm2
Int-Manifold
Stock
Throttle
Stock
Air Cleaner
TRUST
Intercooler
Stock
Piping
Stock
Blow off valve
TRUST Type RS
Exh-Manifold
Stock
Exh-Muffler
TRUST CS GT
Catalyzer
SARD
Oil Cooler
M7
Radiator
KOYO Aluminum
Others
SARD Thermostat

FUEL

Injector
SARD 800cc TF
Fuel Pump
SARD 265L

CONTROLLER and ELECTRIC

Engine Control
JUN ECU
Boost Control
TRUST Profec B Spec II
Gauges
Defi AdvanceCR Boost, Coolant temperature, Oil temperature, Oil pressure, Exhaust temperature
Battery
Odyssey

DRIVE TRAIN

Clutch
Exedy twin plate
Transmission
Stock
LSD
CUSCO F 1.0way / R 1.5way

SUSPENSION

Dumper
ZEAL Super Function
Coil
ZEAL X Coil F10K / R18K
Bush
CUSCO Pillow bush
Chassis bar
CUSCO Strut bar, front lower bar
Tire
ADVAN NEOVA AD08 255/35R18
Wheel
ADVAN RZ 9J-18 +45

BRAKE

Caliper
JUN F 6pot / R 4pot
Rotor
JUN
Pad
JUN

EXTERIOR

Aero parts
INGS Body kit, JUN Font under diffuser

INTERIOR

Seat
BRIDE ZETA III
Steering
Rafix II + Worksbell 350mm
Seat Belt
TAKATA

SPECIAL NOTE

Weight
1415kg

JUN GDB

  • DEC 2002 SPEC

DEC 2002

BASIC DATA

Name
JUN SUPER IMPREZA GDB
Vehicle
SUBARU IMPREZA STi
Model
GDB (Applied A)
Engine
EJ25

ENGINE DATA

Bore x Stroke
100.0 x 79.0 (mm)
Comp. Ratio
8.1 : 1
Displacement
2482cc
Piston
JUN Forged Aluminum (CustomKit 2.5L)
Crank shaft
JUN Billet (CustomKit 2.5L)
Rod
JUN I-Beam (CustomKit 2.5L)
Camshaft
JUN 272(68)-10.3 / 272(68)-10.3
Valve Spring
JUN Reinfocement Valve Spring
Valve Retainer
JUN Ti Valve Retainer
Head Gasket
0.7mm

EXTERNAL ENGINE

Turbine
TRUST TD06 25G
Boost
1.8kg/cm2 or more
Int-Manifold
JUN Prototype 4 throttle
Throttle
Stock
Air Cleaner
K&N
Intercooler
Core
Exh-Manifold
JUN Prototype (rear exhaust)
Exh-Muffler
JUN Original Titanium
Oil Cooler
TRUST 16 Layer
Radiator
JUN Aluminum V-mount

FUEL

Injector
1000cc
Fuel Pump
BOSCH

CONTROLLER and ELECTRIC

Engine Control
F-CON V-Pro
Boost Control
TRUST e-01

DRIVE TRAIN

Clutch
CUSCO Prototype twin plate
Transmission
GDB Original 6 Speed
LSD
CUSCO

SUSPENSION

Dumper
ZEAL Super Function F:13k / R16k
Tire
ADVAN A-048 255/40R17
Wheel
ADVAN RG 9.5J-17

BRAKE

Caliper
F&R MA11 F:ENDLESS 6pot 345mm

EXTERIOR

Aero parts
JUN Eye Line, JUN Front Bumper, SARD GT-WING