Year: 1992

Make: Acura

Model: NSX

VIN: JH4NA115XNT000174

Miles: 36,568

Engine: 3.0-liter, DOHC, 24-valve V6 engine // COMPTECH Supercharged

Transmission: 5-speed manual

Horsepower: 395 hp @ 8,000 rpm

Torque: 277 lb-ft @ ~6,500 rpm

Curb Weight: 3,090 lbs (est)

Exterior Color: Berlina Black

Interior Color: Black Leather

Vehicle comes with:

- All documentation listed below

- Two key fobs and key blades (original)

- Owner’s manuals within leather bound case

- Tool kit

- Original Transmission Case

- Clean Indiana title with actual miles and no brands

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1992 Acura NSX Coupe

Comptech Supercharged | Fully Documented | Executive Provenance Example

Overview

This 1992 Acura NSX represents a rare, collector-grade example defined not by a single modification or ownership story, but by the completeness and consistency of its documentation. Delivered new in California, retained under long-term ownership, and upgraded during the golden era of Comptech, this NSX is accompanied by an extensive, audit-ready paper trail spanning more than three decades.

Unlike many modified examples, this NSX reflects period-correct engineering, conservative performance philosophy, and long-term stewardship, rather than short-term modification trends. Every meaningful chapter of its life — from original delivery, to Comptech performance conversion, to recent mechanical recommissioning — is documented with original invoices, service records, emissions certificates, and third-party verification.

Original Delivery & Ownership

This NSX was delivered new on April 2, 1992 by Hopkins Acura in Redwood City, California. The original Acura owner’s manual remains with the car and retains the completed Owner Identification page, handwritten at delivery, confirming the original owners, selling dealer, VIN, and delivery date.

The car remained in Northern California for the majority of its life, supported by continuous California registration history and repeated emissions compliance. CARFAX confirms two total owners, no accidents or damage reported, no mileage discrepancies, and no title branding.

Period-Correct Comptech Performance Conversion

During prior ownership, this NSX underwent a comprehensive Comptech performance conversion commissioned by Kevin Kalkhoven, with final invoicing dated January 17, 2001. Comptech USA of El Dorado Hills, California was widely regarded as the premier Acura and Honda performance authority of the era.

Documented Comptech Equipment and Services

The retained Comptech documentation includes original invoices (pages 1 and 2), dyno sheets, technical literature, maintenance instructions, and period Comptech Sport catalogs. Documented equipment includes:

- Comptech PowerPlus Supercharger system in CARB-legal configuration

- Comptech intake and high-flow carbon fiber airbox

- Comptech exhaust components
- Comptech PowerGrip clutch
- Supporting fueling, driveline, suspension, and brake components
- Professional Comptech installation and dyno validation

The final Comptech invoice total shown on page 2 of 2 is $27,071.74, fully documented and retained in the binder.

Dyno Performance

Dyno documentation included with the car shows post-installation output of approximately 395 horsepower at 8,000 RPM and 277 lb-ft of torque at roughly 6,500 RPM.

These results were recorded on a Dyno Dynamics load-bearing dynamometer, known for conservative, real-world output readings. The dyno charts illustrate a substantial mid-range torque increase beginning around 2,500 RPM with smooth, linear power delivery.

What Comptech Emphasized — And Why Buyers Care

Comptech’s NSX program focused on drivability and longevity rather than peak numbers. Their engineering philosophy emphasized:

- Immediate torque delivery without turbo lag
- Linear, factory-like power delivery
- OEM compression retained for durability
- Moderate boost levels to reduce mechanical stress
- No intercooler requirement
- CARB legality and emissions compliance
- Stock-like behavior in traffic with dramatic performance on demand

This approach produced NSXs that feel engineered rather than aggressively modified, and it is a primary reason period Comptech cars remain among the most desirable modified examples today.

Transmission Snap Ring Update

The manual transmission falls within the known NSX snap ring–affected range and was properly updated as a preventative measure. Importantly, the original transmission case is included with the sale, preserving component-level provenance and transparency for future owners.

Comprehensive Documented Service History

The following represents a condensed summary of the fully itemized service ledger retained in the binder. All invoices, receipts, and supporting documents are included.

Early Dealer & California Service

1996–2000: Multiple California emissions inspections passed
1997: Stevens Creek Acura window regulator repair, tires, alignment, and hatch struts
1998: Hopkins Acura diagnostics and brake/ABS service

Comptech Era

January 2001: Full Comptech system installation and dyno validation

Alignment performed contemporaneously

GP Enterprises LLC (California NSX Specialist)

2011–2019: Routine specialist servicing including oil services, brake and clutch fluid, inspections, smog preparation, and drivability corrections
March 3, 2021 (Invoice #21-012): Major interior restoration and mechanical service including carpet and mats, center console refinishing, Kenwood audio installation, right-hand axle shaft replacement, alignment, and fluid services totaling $10,939.18

Recent Mechanical Recommissioning

March–May 2023: Source 1 Automotive performed a comprehensive mechanical refresh including timing belt and water pump service, valve adjustment, cooling system service, ignition service, transmission inspection and snap ring update, alignment, and new tires. Final invoice total $10,248.54

Additional supporting work includes custom AN hoses, OEM hardware sourcing, ignition switch replacement, locking module replacement, and cabin air filtration.

Total Documented Investment

Based on invoice-backed documentation only:

- Comptech performance conversion (2001): $27,071.74
- GP Enterprises LLC specialist service and restoration: $16,749.06
- Source 1 Automotive mechanical recommissioning: $10,248.54
- Supporting parts and repairs: $625.39
- Early dealer and emissions services: $1,462.34

Total documented investment exceeds $56,000, exclusive of routine fuel, registration, insurance, and incidental ownership costs.

Documentation & Items Included

This NSX is accompanied by one of the most complete documentation archives we have encountered, including:

- Original Acura owner’s manual
- Original Acura leather owner’s pouch
- Completed Owner Identification page
- Full Comptech invoice set and dyno documentation
- Comptech maintenance and break-in instructions
- Multiple period Comptech Sport catalogs
- All GP Enterprises LLC invoices
- Source 1 Automotive estimate and final invoice #16260
- California smog certificates and BAR documentation
- Alignment printouts and service receipts

- Physical items included with the sale:

- Two original Acura NSX key fobs
- Two original Acura NSX metal key blades
- Original transmission case retained following snap ring update

MOTORVAULT Summary

This 1992 Acura NSX stands as a benchmark-level, fully documented example distinguished by verified original delivery, long-term California ownership, a period-correct Comptech performance conversion, proactive mechanical preservation, and substantial recent investment. Unlike many modified examples, this NSX benefits from in-era engineering decisions that emphasized drivability, reliability, and OEM-like character rather than short-term performance trends.

The current owner is local to MOTORVAULT, and the car is well known throughout the Indianapolis enthusiast community and the broader NSX community as one of the most thoroughly documented and correctly modified examples in existence. Its reputation has been built not on marketing claims, but on decades of transparent ownership, meticulous recordkeeping, and mechanical stewardship.

With a complete archival paper trail, documented dyno results, and major mechanical services already addressed, this NSX offers a rare opportunity to acquire a historically correct, mechanically sorted example that can be driven and enjoyed with confidence. For collectors seeking an NSX with authentic in-period performance pedigree, local provenance, and no unanswered questions, this example represents a top-tier offering within the MOTORVAULT inventory.

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Please consider this an invitation to visit MOTORVAULT! If you have any questions or wish for more information about this vehicle or any other vehicle, please do not hesitate to contact:

Josh Stiegman - josh@motorvault.com // 317-643-1444

Brian Henry - brian@motorvault.com // 317-520-4663

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