1971 Porsche 911 2.5L S-T – A Complete Banyan Restoration

A true motorsport icon, this 1971 Porsche 911 2.5L S-T has been restored by Banyan Motors with exacting precision and reverence for its historic racing pedigree. Originally developed by Porsche for FIA Group 4 competition, the 911 S-T earned its place in history with victories at Le Mans, the Targa Florio, and the Nürburgring.

This particular example, finished in Classic Porsche Black, features wide steel body fenders, authentic ST front and rear bumpers, and period-correct details throughout. Currently in the final stages of assembly, it stands as one of the most faithful and refined S-T restorations on the market today—ready for the road or the paddock.

Engineered for Motorsport Excellence

At the core of this restoration is a reimagined 2.5L flat-six, designed to deliver thrilling performance while honoring the engine architecture that defined Porsche’s early racing dominance.

Engine Specifications:

Displacement: 2.5L flat-six (based on 2.4L platform with enlarged 86.7mm bore)
Power Output: Over 280 hp
Twin-plug ignition system for precise spark control
High-compression pistons with forged internals
Weber 46 IDA carburetors tuned for high-revving performance
Magnesium case, forged crankshaft, and custom-built racing exhaust system

Chassis & Suspension: Precision in Every Curve

Race-tuned and engineered for track-ready handling, this 911 S-T features a fully restored and performance-enhanced chassis.

Stiffer torsion bars and adjustable dampers for increased responsiveness
Front and rear anti-roll bars for sharper cornering balance
Upgraded ventilated disc brakes with high-performance pads for consistent stopping power
Competition-grade wheel and tire setup for enhanced grip and road feedback

Lightweight Construction & Aerodynamics

Every element of the S-T body has been optimized to reduce weight and increase agility, reflecting the factory’s original lightweight strategy.

Wide steel fender flares to accommodate larger race-spec wheels and tires
Aluminum panels and fiberglass bumpers for reduced curb weight
Front lip spoiler and ducktail rear spoiler to improve aerodynamic stability at speed
Total weight: approx. 900 kg (1,984 lbs)

Specifications

Model: 1971 Porsche 911 2.5L S-T
Engine: 2.5L flat-six, twin-plug ignition, Weber 46 IDA carbs
Power: Over 280 hp
Torque: Estimated 250+ lb-ft
Fuel System: Carbureted (Weber 46 IDA)
Transmission: 5-speed manual (915 gearbox)
Drivetrain: Rear-wheel drive (RWD)
Brakes: Ventilated disc brakes (front & rear), high-performance pads
Suspension: Race-tuned, fully restored independent setup
Exterior Color: Classic Porsche Black
Interior: Competition-ready lightweight configuration (final upholstery pending)
Weight: Approx. 900 kg (1,984 lbs)


A Masterpiece of Motorsport Heritage

The 911 2.5L S-T is more than a car—it’s a living artifact from Porsche’s most daring and innovative racing era. This Banyan Motors restoration pays tribute to that legacy with obsessive attention to detail and motorsport-grade engineering throughout.

Whether destined for your private collection, vintage rally, or race circuit, this 1971 Porsche 911 2.5L S-T is an unrepeatable opportunity to own a truly legendary machine—reborn with purpose.