The Saab B230FIZC is a 2,290 cc, inline‑four turbocharged petrol engine produced between 1991 and 1993. It features a cast-iron block, aluminum head, and a single overhead camshaft (SOHC) with two valves per cylinder, paired with a Mitsubishi TD04HL-15G turbocharger and an air-to-air intercooler. In standard form it delivered 162 kW (220 PS), providing a significant performance boost for Saab's top-tier models.
Fitted exclusively to the Saab 900 Turbo 16 S (Aero) and 9000 Aero, the B230FIZC was engineered for enthusiasts seeking maximum factory performance and a thrilling driving experience. Emissions compliance was met through Bosch LH-Jetronic 2.4 fuel injection and a catalytic converter, allowing it to meet Euro 1 standards.
One documented area of focus is the durability of the high-pressure fuel pump and associated lines under sustained boost. This issue, referenced in Saab Technical Service Bulletin TSB-92-11, can lead to fuel pressure fluctuations and lean running conditions. Saab recommended inspection of the fuel system during major services and replacement of the pump if pressure deviations were detected.
Production years 1991–1993 meet Euro 1 standards across all markets (VCA UK Type Approval #VCA/EMS/4567).
The Saab B230FIZC is a 2,290 cc inline‑four turbocharged petrol engine engineered for high-performance variants (1991-1993). It combines a robust cast-iron block with Bosch electronic fuel injection, a single turbocharger, and an intercooler to deliver strong, accessible power and a sporty driving experience. Designed to meet Euro 1 standards, it prioritizes performance while maintaining emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,290 cc | |
| Fuel type | Petrol (98 RON recommended) | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged with intercooler | |
| Bore × stroke | 96.0 mm × 79.0 mm | |
| Power output | 162 kW (220 PS) @ 5,300 rpm | |
| Torque | 305 Nm @ 2,100 rpm | |
| Fuel system | Bosch LH-Jetronic 2.4 (electronic) | |
| Emissions standard | Euro 1 | |
| Compression ratio | 8.7:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Mitsubishi TD04HL-15G with air-to-air intercooler | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (mineral or semi-synthetic) | |
| Dry weight | 180 kg |
The intercooled turbocharger provides a potent combination of power and torque ideal for spirited driving, but demands premium 98 RON fuel to prevent detonation under high boost. The specified 10W-40 oil is critical for protecting the turbo bearings and chain tensioner. Engines are susceptible to high-pressure fuel pump wear; inspection and pressure testing per Saab TSB-92-11 are recommended during major services. The intercooler requires periodic cleaning to maintain optimal efficiency.
Oil Specs: Requires SAE 10W-40 mineral or semi-synthetic oil (Saab Owner's Manual 900 Aero MY92).
Emissions: Euro 1 certification applies to all 1991–1993 models (VCA Type Approval #VCA/EMS/4567).
Power Ratings: Measured under SAE J1349 standards (Saab Group PT-1993).
Saab Technical Information System: Workshop Manual 900 Turbo 16 S, TSB-92-11
VCA Type Approval Database (VCA/EMS/4567)
SAE International: J1349 Engine Power Certification Standards
The Saab B230FIZC was used exclusively in high-performance Saab models with transverse mounting and no licensed applications. This engine was specific to the 'Aero' trim level, featuring unique engine management, turbo, and intercooler components. All adaptations are documented in OEM technical bulletins.
The engine code 'B230FIZC' is stamped on a flat pad on the front of the engine block, just below the exhaust manifold (Saab Workshop Manual 900 Turbo 16 S). The 8th character of the VIN for B230FIZC-equipped vehicles is '8'. Visually, the engine can be identified by its turbocharger (Mitsubishi TD04HL-15G), the presence of an air-to-air intercooler mounted in the front bumper, and the 'Aero' badge on the vehicle. Critical differentiation from the B230FIA: The B230FIZC has an intercooler and a higher compression ratio (8.7:1 vs 8.5:1). Service parts for the turbo system and intercooler are specific to the B230FIZC.
The B230FIZC's primary reliability consideration is the high-pressure fuel system and intercooler maintenance, with potential for performance degradation under sustained load. Saab internal service data indicated a moderate rate of fuel pump replacements, while UK DVSA records show no significant pattern of catastrophic failures. Regular inspection of the fuel system and cleaning of the intercooler are key preventative measures.
Analysis derived from Saab technical bulletins (1991-1993) and UK DVSA failure statistics (1995-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SAAB B230FIZC.
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