2003 Mazda MX-5 Miata Race Car

🏁 Ultimate 500+ HP Turbo Miata Project – Brand New Build, Never Run 🏁 💰 $21,988 | 📍 Gig Harbor, WA Over $21K in parts alone. No trades. Will consider serious offers. If you’re after a no-compromise Miata build engineered for power, reliability, and longevity — this is it. This NB Miata turbo project was built to handle 500–550 horsepower, and no corners were cut. All major components — engine, turbo, transmission, and drivetrain — are professionally installed, but the car has never been started. Every part is brand new, with detailed documentation available. This is not a thrown-together build. This is the result of thousands of dollars in premium components, high-precision machine work, and meticulous assembly prep. A full engine spec sheet with torque specs, clearances, and matched part weights is available to serious buyers. ⸻ 🔧 ENGINE (Fully Built BP4W) • Supertech pistons + Wiseco XX rings – balanced and matched by weight • Eagle H-beam rods, ACL race bearings, ARP main & head studs • 84mm bore, piston-to-wall clearance: 0.0035”, rod/main oil clearances: 0.0025” • Fully machined block: bored, honed, decked, line-bored, balanced, clearanced • Supertech +1mm intake/exhaust valves, bronze guides, heavy-duty springs, full head job • Boundary Engineering billet oil pump, Supermiata 36-2 damper • Fel-Pro and Cometic gaskets throughout 📄 Full engine spec sheet available (torque values, clearances, piston/ring weights, and more) ⸻ 💨 FORCED INDUCTION + FUEL • BorgWarner EFR 6758 twin-scroll turbo (IWG) – $1,850 • Turbosmart IWG75 wastegate actuator • Radium Engineering fuel system: fuel rail, regulator, pulse damper, pressure gauge • Injector Dynamics ID1050X injectors ⸻ ⚙️ DRIVETRAIN • BMW ZF 5-speed transmission (refreshed detents, installed) • KPower BP-to-ZF adapter kit – $2,900 • ACT HD 6-puck sprung clutch • QA1 carbon fiber driveshaft – $1,350 • Cadillac CTS Getrag 3.23 LSD differential • V8Roadsters Stage 2 diff upgrade with performance axles and ABS support ⸻ 🧱 CHASSIS + SUPPORTING MODS • Clean NB roller shell (2003, rust-free, clean title) • V8Roadsters NB tubular subframe • Blackbird Fabworx engine drop mounts • Mazda Comp subframe brace • AutiCraft lithium motorsport battery • Dozens of brand-new supporting components (gaskets, sensors, brackets, etc.) 💬 WHY SELLING: Life priorities changed. I’d rather pass this on to someone who will complete it properly than let it sit. This is a high-end platform, ready for your finishing touches and tuning. ⸻ 📩 Message me for the full parts list and engine spec sheet. 🛑 Will only consider part-out if no buyer steps up for the full package. 🛑 I am in no rush to sell and will wait for the right buyer List of parts: Description Misc Weld Bungs $47 95 Miata 1.8 Engine $400 Oil Pan Baffle $40 ARP Main Studs $94 ACL Race Bearing Set $120 Crankshaft $200 Eagle H Beam Rods $329 Supertech pistons / Wiseco XX rings $483 Machining-Bore&Hone, Cleaned, Decked $220 Machining-Remove Flywheel Weight&Balance $140 Check & Set Rod Clearances $150 Re Deck Block $100 Line bore Block $150 Balance Rotating ASM $150 Oil Pump Bolt $4.55 Oil Dip Stick $21.75 Crank bolt $5.43 Woodruff Key $5.66 Rear main Crank Seal $23.99 Front Oil pan gasket $14.09 Oil Strainer Gasket $3.71 Rear Oil pan Gasket $14.09 M10-1.25 x 12mm 10.9 Flange Bolt (Alternator) $15 Water Pump $31 Gates RACE Timing Belt Kit $130 Gates Race Accessory Belt $28 Blackbird Fabworx Drop Mounts $(contact info removed)0A 100a Alternator $125 Boundary engineering oil pump $350 Supermiata Damper 36-2 $234 Fel-Pro BS40634 Rear main seal $14 Fel-Pro OS30633R Pan Gasket $13 Billet water inlet $75 Bronze Valve guides $110 Supertech +1 Intake Valve $148 Supertech +1 Exhaust Valve $142 Supertech Heavy Double Springs $426 Supertech SUB lifter $485 Head machine work $1,000 Cometic Head Gasket $91 ARP HB Head studs $168 SadFab Coil Bracket W/ Wires $145 D585 Coils $30 Stage8 Exhaust Manifold Nuts $36 GM temp sensor $17 3/8 NPT bung $8 10 AN bung qty 3 $30 VVT Gasket $4.36 3/8 Exhaust Collars $11 Timing Chain Cover $48 Crank Bolt $23 EM Gasket $10 IM Gasket $9 VVT Valve Cover Gasket $20 Front Cam Seals $9 V8R NB Subframe $750 Mazda Comp Subframe Brace $26 Engine injectors: Injector Dynamics ID1050 48mm x 14m x 14mm (4x) (Part # 1050.48.14.14.4) $546 Clutch: ACT HD Clutch Kit - BMW E46 - 5speed (10 spline / 6 puck spring) $650 BMW ZF5 transmission (detents changed) $(contact info removed) Cadillac CTS LSD differential 3.23 getrag $500 QA1 Carbon Fiber Driveshaft (custom sized) $1,350 Radium parts (Fuel rail, pressure regulator, gauge, pulse damper) $780 Borg Warner EFR 6758 twin-scroll TURBO IWG 2 EGR bungs $1,850 Kpower BP to BMW ZF 5-speed transmission adapter package $2,900 V8R Getrag differential Upgrade (Stage 2) w/ axles w/ ABS $3,000 Turbosmart IWG75 sigle port internal wastegate actuator $175 Car body $1,500 Flowforc