1993 SPEC MIATA N/A - $18,500
1993 MAZDA MIATA NA
Purpose-Built Track Miata | 131 WHP | Haltech Elite 1500 | Documented Engine Build & Extensive Recent Investment
OVERVIEW
Developed with a clear focus on performance, reliability, and driver confidence, this 1993 Mazda Miata represents a thoughtfully engineered track car that has benefited from extensive mechanical development and continual refinement. Rather than an unfinished project or hastily assembled build, this example combines proven components with documented professional workmanship to create a capable platform for HPDE events, time attack competition, club racing, or dedicated track use.
Power is supplied by a professionally prepared BP engine featuring a performance-built cylinder head, modern standalone engine management, and supporting fuel and ignition upgrades. Professionally calibrated on a chassis dyno, the combination produces a documented 131 wheel horsepower while maintaining the balance and responsiveness that have made the NA Miata one of the most respected driver's platforms ever produced.
Supporting the drivetrain is more than $12,850 in documented engine-related investment, highlighted by a comprehensive engine rebuild completed by Eccentric Motorsports in August 2025 and a professionally prepared cylinder head assembled by The Winning Formula Inc. Documentation for both builds accompanies the vehicle.
Beyond the drivetrain, the chassis has been carefully developed with functional aerodynamic improvements, cooling enhancements, and competition safety equipment that demonstrate a focus on engineering rather than appearance. The result is a well-sorted track platform that is immediately ready for its next owner.
SPECIFICATIONS
Vehicle
Year: 1993
Make: Mazda
Model: Miata (NA)
Configuration: Rear-Wheel Drive
Transmission: 5-Speed Manual
Engine
BP-series inline four-cylinder
Professionally built performance cylinder head
Haltech Elite 1500 standalone ECU
Professionally dyno tuned
131 wheel horsepower
PERFORMANCE & CHASSIS
The chassis has been upgraded with carefully selected components intended to improve stability, consistency, and reliability during extended track sessions.
Suspension
Bilstein performance suspension package
Aerodynamics
ProCarInnovations rear wing
Custom quick-release front splitter
Custom front air dam
Cooling Upgrades
Aluminum performance radiator
Functional radiator ducting
Brake cooling ducts
Hood extraction ducting
Flying Miata coolant bypass system
ENGINE MANAGEMENT & SUPPORTING SYSTEMS
The engine management and supporting mechanical systems have been comprehensively updated to improve reliability, serviceability, and tuning capability.
Highlights include:
Haltech Elite 1500 ECU
Custom Haltech engine harness
Professional dyno calibration
DW fuel injectors
Performance fuel rail
Adjustable fuel pressure regulator
Flying Miata crank trigger
Flex fuel sensor
Haltech wideband oxygen sensor
Audi R8 coil pack conversion
Performance ignition components
Catch can system
SAFETY & DRIVER ENVIRONMENT
Purpose-built with track use in mind, the cockpit has been stripped of unnecessary weight while incorporating the equipment expected of a dedicated competition-oriented build.
Interior
Gutted interior
Lightweight track-focused configuration
Safety Equipment
Fire suppression system
Battery kill switch
Multi-point racing harnesses
Window nets
DOCUMENTED RECENT INVESTMENT
Eccentric Motorsports
August 9, 2025
Documented Investment: $10,353
A comprehensive mechanical refresh was completed by Eccentric Motorsports centered around reliability and long-term performance.
Major services performed include:
Complete engine rebuild
New timing components
Oil pump replacement
Bearings
Piston rings
Front and rear main seals
Complete gasket replacement
New alternator
New starter
Aluminum radiator
Fuel injectors
Fuel rail
Fuel pressure regulator
New fuel plumbing
Flying Miata crank trigger
Flying Miata coolant bypass
Haltech wideband system
Flex fuel sensor
Catch can assembly
Valve cover and coil bracket
Audi R8 coil packs
Spark plugs
New clutch master cylinder
Engine oil and transmission fluid service
Tachometer integration
Professional dyno tuning
The Winning Formula Inc.
May 13, 2019
Documented Investment: $2,500
The engine is equipped with a professionally assembled performance cylinder head featuring quality internal components.
Build specifications include:
East Street Racing STS cylinder head
BP4W cylinder head
Tomei intake camshaft
Tomei exhaust camshaft
SuperTech 1mm oversized valves
Stellite-treated intake valves
Stainless exhaust valves
SuperTech shim-under-bucket lifters
Upgraded Volvo valve springs
WHY WE LOVE IT
Many track cars evolve over time through inconsistent modifications and changing priorities. This Miata stands apart because its development reflects a clear direction centered on reliability, cooling efficiency, and balanced performance.
Rather than focusing solely on horsepower, the build emphasizes the complete package. Modern standalone engine management, documented professional engine work, improved cooling, functional aerodynamics, and proven suspension components combine to create a track car that inspires confidence lap after lap.
Perhaps most importantly, the substantial documented investment allows the next owner to enjoy the benefits of professional development without undertaking the significant expense and downtime typically required to reach this level.
INCLUDED WITH SALE
Documentation
Eccentric Motorsports invoice
The Winning Formula Inc. invoice
Supporting build documentation
Highlights
Documented 131 WHP
Over $12,850 in documented engine-related investment
Professional standalone engine management
Extensive cooling upgrades
Functional aerodynamic package
Purpose-built safety equipment
MOTORVAULT MARKET PERSPECTIVE
The NA Miata continues to be one of the most respected and versatile chassis in grassroots motorsports, valued for its exceptional balance, reliability, and nearly limitless aftermarket support. Well-developed examples that have received professional mechanical attention are increasingly desirable, particularly when accompanied by documented investment rather than undocumented modifications.
This example distinguishes itself through quality workmanship, thoughtful engineering, and comprehensive documentation. Instead of beginning with a stock chassis and investing considerable time and resources into development, the next owner has the opportunity to acquire a sorted, professionally developed platform that is ready to be driven, refined, and enjoyed.
CONTACT MOTORVAULT
For additional information, photographs, videos, financing assistance, trade evaluations, or to schedule a private viewing, please contact:
Brian Henry
Managing Partner | Sales & Client Relations
(317) 522-8260
sales@motorvault.com
Ralph Haga
Sales & Client Relations
(309) 721-9725
sales@motorvault.com
MOTORVAULT
520 W. McCarty Street
Indianapolis, Indiana 46225
TERMS, DISCLOSURE & BUYER INFORMATION
At MOTORVAULT, transparency and accurate representation are our priorities. Vehicle descriptions are prepared using owner-supplied information, service records, vehicle history reports, manufacturer documentation, and our own inspection. While every effort is made to ensure accuracy, buyers are encouraged to independently verify any information they consider important.
As one of only two Bring a Trailer Local Area Partners (LAPs) in Indiana, MOTORVAULT applies the same attention to detail and documentation to every vehicle we represent, whether sold through Bring a Trailer, Cars & Bids, or directly through MOTORVAULT.
Unless otherwise stated, all vehicles are sold as-is, where-is, with no expressed or implied warranties. Mileage may vary slightly due to transport, detailing, photography, inspections, or test drives.
Independent pre-purchase inspections are welcomed, and we are happy to coordinate inspections with the buyer's preferred dealership or specialist. We also assist with financing, trade-ins, nationwide enclosed transportation, and international shipping.
Conveniently located just 20 minutes from Indianapolis International Airport (IND), MOTORVAULT welcomes buyers from across the country and can assist with airport transportation and enclosed vehicle delivery.
We appreciate the opportunity to earn your business and welcome any questions regarding this vehicle before purchase.
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