CAST 81ø HIGH COMPRESSION PISTON

NA6CE & NB6C

DISCONTINUED

Cast piston is the basic, popular modification for street tuned cars.  It is compatible for wide range of modification, up to cam with 10.5mm lift.  We offer very reasonable price, but keep the best quality for the piston.

80ø = 1680cc

81ø = 1720cc

CAST 86ø HIGH COMPRESSION PISTON

NA8C & NB8C

DISCONTINUED

Cast piston is the basic, popular modification for street tuned cars.  It is compatible for wide range of modification, up to cam with 10.5mm lift.  We offer very reasonable price, but keep the best quality for the piston.

80ø = 1928cc

81ø = 1974cc

FORGED 85ø LOW COMPRESSION PISTON

NA8C & NB8C

Forged piston is the must for turbo tuned engines.  It is compatible up to cam with 10.5mm lift.  Low compression piston is only available from Mecha Doc!

85ø = 1928cc

Boost up to 2.0kpa (29.4lb)

FORGED I-BEAM CONNECTING ROD

NA6CE, NA8C, NB6C, NB8C

Mecha Doc's connecting rods are focused on weight advantage and strength to provide the best for the engine.  It is designed and machined from the scratch to the best figure.

410g each (about 14.5oz)

Can handle up to 300hp

LIGHTEN CONNECTING ROD

(CORE EXCHANGE REQUIRED)

NA6CE, NA8C, NB6C, NB8C

Machined and balanced the stock connecting rod.  45g lighter connecting rods are also machined on the cap and (sunaotoshi?).  These parts don't get too much stress, so it is safe to get machined.

Can handle up to 200hp, NA only.

CRANK SHAFT MODIFICATION

NA6CE, NA8C, NB6C, NB8C

One of the known problem for Miata is crank walk, that cause so many engine troubles.  It happens because of the end of stock crank shaft is too short, and as rpm gets higher, the crank shaft pulley starts to move.  With this modification, it prevents head gasket leak, bearing problems, then engine can smoothly rev without stress for higher rpms.

NA8C BOLT-ON CAM SHAFT

NA8C ONLY

Compatible with stock HLA, it changes the valve timing and the lift to maximize the performance of the engine.  This is NOT shaved stock cam, our specical cam shafts are made from scratch.

IN & EX 264° 9.2mm Lift

Valve Timing IN = 110°  EX = 115°

IN & EX 250° 8.5mm Lift

Valve Timing IN = 112° EX = 120°

OUTER SHIM KIT w/SHIM

NA6CE & NA8C

This parts is required to install HLA non-compatible cams.  This kit replace with HLA, it is cheaper than getting inner shim, and also changeable to solid ones.

Measuring Shims

(Shim Adjustment is required)

BIGGER VALVE FOR BP ENGINE

(VG30DETT BASE)

This is one of the must-haves for NA tuning cars.  Get bigger valve to improve the intake and exhaust performance.  Valve seat modification required.  Compatible with stock valve retainers.

IN=34ø EX=29.5ø Valve Stem Diameter = 6mm

RACING SEMI-TITANIUM CAT-BACK EXHAUST 75ø

NA6CE & NA8C

It improves the exhaust flow at higher rpm, and gives big weight advantage of titanium.  The design is straight, great for road race with 75ø piping.  You will enjoy the acceleration especially from 5000rpm, that you cannot experience with other exhaust systems.

Main Pipe=Stainless Steel, Muffler=Titanium

It comes out on the left, so modification on the rear bumper may be necessary.

SILENCER FOR RACING SEMI-TITANIUM EXHAUST SYSTEM

OS GIKEN SPECIAL MADE

SUPER SINGLE CLUTCH

One of the common characteristics of upgrade clutch is higher pedal effort (heavier pedal).  Although our clutch is "multi-plate type", we minimize the increase of pedal effort to make it more comfortable and better controllability for street use.

FRONT PIPE FOR TURBO

NA6CE & NA8C

Increase the diameter from stock 50ø to 60ø, it reduces the amount of secondary exhaust pressure, and get better response.  It is made all stainless steel for better quality and looks.

LARGER SURGE TANK

(INTAKE MANIFOLD)

NA8C

Our specially designed and engineered surge tank increase the amount of intake air and creates massive torque.  This larger capacity intake manifold will send larger amount of intake air into the engine efficiently.

** Need to do map sensor conversion **

Kit Includes: 70ø N15 Pulser Throttle Body and Fuel Rail

Optional Parts: Hoses, Fittings, and ISCV Relocation ATT

LARGER THROTTLE BODY

NA6CE & NA8C

Bigger throttle diameter increases torque and throttle response on the low to mid rpm.  It is made of factory throttle body to assure you there will be no problem with shaft, like aftermarket throttle bodies. We weld bracket to your stock intake manifold, then taper it, to make the air flows smooth into the manifold.

Based on Pulser N15 Throttle Body

Stock Intake Manifold Modification Required

Optional parts: Hoses, Fittings, and ISCV Relocation ATT

BRAKE PAD

R&D from actual race feedbacks, our brake pads are best for different racing scenes.

For Road Race (Titanium Mix) Front/Rear

For Winding Road/Drifting (Carbon Metallic) Front/Rear

For Drag Race (Carbon Metallic) Front/Rear

T25 HEAT SHIELD

(FOR T25 SERIES TURBINE)

Protect your hoses, wires, and other hardware around the turbo from the heat.

** Fitting may vary depending on the tower bar **

SIDE PERFORMANCE BAR

NA6CE, NA8C, NB6C, NB8C

For chassis reinforcement.  It increases the chassis rigidity by 30%.  The bolt comes with the kit is 13mm, which is made bigger for better supporting  area.  We have reasonable stainless steel bars and titanium bars for those looking for even lighter bars.

Stainless Steel (Total Weight 3.5kg/7.7lbs.)

Titanium (Total Weight 1.7kg/3.7lbs.)

TWIN FAN RELAY (TFR)

NA6CE, NA8C, NB6C, NB8C

When the engine is on, only the passenger side of fans are working for the factory setup. With this fan relay, it turns the AC fan at the same time to increase the radiator's cooling efficiency. The kit comes with relay kit, and the other one comes with manual switch for you to control when to turn the AC fan on.

** It will not use extra electricity **

Without Manual Switch

With Manual Switch