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Description
Guildford Spares is delighted to present this Mazda RX7 Front Bar (Fibreglass), a versatile and lightweight replacement designed for both restoration and performance upgrades. This front bar is compatible with multiple generations and global variants of the Mazda RX7, ensuring broad applicability for enthusiasts worldwide. Below is the expanded compatibility list and specifications:
Full Compatibility List
Years: 1978–1988 (FB Series 1-3: 1978–1985 / FC Series 1: 1986–1988)
Chassis Codes: FB (SA22C), FC (SA/FD)
Global Markets: USDM, JDM, ADM, EDM, NZDM
| Make | Model/Trim | Year Range | Generation/Series | Body Style | Engine | Market/Notes |
|---|---|---|---|---|---|---|
| Mazda | RX7 FB Series 1 Coupe | 1978–1980 | FB Series 1 | Coupe (LHD/RHD) | 1.1L 12A Rotary | Base models, all markets |
| Mazda | RX7 FB Series 2 Coupe | 1981–1983 | FB Series 2 | Coupe (LHD/RHD) | 1.1L 12A Rotary | Updated styling for Series 2 |
| Mazda | RX7 FB Series 3 Coupe | 1984–1985 | FB Series 3 | Coupe (LHD/RHD) | 1.1L 12A / 1.3L 13B Rotary | Final FB iteration with 13B engine option |
| Mazda | RX7 FB GSL/GSL-SE | 1981–1985 | FB Series 2/3 | Coupe (LHD) | 1.1L 12A / 1.3L 13B Rotary | USDM luxury/performance trims |
| Mazda | Savanna RX7 (JDM) | 1978–1985 | FB Series 1-3 | Coupe (RHD) | 1.1L 12A / 1.3L 13B Rotary | JDM models with “Savanna” badging |
| Mazda | RX7 FC Series 1 Coupe | 1986–1988 | FC Series 1 | Coupe (LHD/RHD) | 1.3L 13B Turbo Rotary | Second-gen FC models (minor fitment adjustments required) |
| Mazda | RX7 Convertible (ADM/JDM) | 1981–1985 | FB Series 2/3 | Convertible | 1.1L 12A Rotary | Rare soft-top variants (limited production) |
| Mazda | RX7 Turbo II (ADM) | 1984–1985 | FB Series 3 | Coupe (RHD) | 1.3L 13B Turbo Rotary | Australian Turbo models with factory intercooler |
| Mazda | RX7 GT-X (JDM) | 1986–1988 | FC Series 1 | Coupe (RHD) | 1.3L 13B Turbo Rotary | JDM high-performance variant with aerokits |
| Mazda | RX7 Rallye Package | 1981–1985 | FB Series 2/3 | Coupe (LHD/RHD) | 1.1L 12A Rotary | Reinforced for competition use |
Key Specifications
Material Specifications
- Core Material: Hand-Laid Fibre glass (GRP)
- Composition: Woven glass fibers embedded in a polyester resin matrix.
- Construction Process:
- Hand-Layering: Layers of fibre glass matting are manually placed into a mold and saturated with resin, ensuring precise reinforcement at stress points (e.g., mounting flanges).
- Curing: The resin hardens under controlled conditions, creating a rigid yet lightweight structure.
- UV-Resistant Gel Coat Finish:
- A glossy outer layer protects against UV damage, preventing fading and surface degradation.
- Available in primer gray for easy customization or factory-matched paint.
- Weight and Performance
- Weight: 8 kg (17.6 lbs) – 40% lighter than OEM steel bars.
- Benefits:
- Reduces front-end mass, improving acceleration, braking, and handling.
- Ideal for track builds or restorations prioritizing the RX7’s agile driving dynamics.
- Durability
- Pros:
- Corrosion Resistance: Immune to rust, unlike steel, making it ideal for humid or coastal climates.
- Flexibility: Absorbs minor impacts (e.g., parking bumps) without permanent deformation.
- Cons:
- Brittleness: May crack under severe impacts (though repairable with fibreglass kits).
- Pros:
- Environmental & Usage Resilience
- Heat Resistance: Withstands temperatures up to 150°C (302°F) – suitable for proximity to engines.
- Chemical Resistance: Resists oils, fuels, and road salts, though prolonged chemical exposure should be avoided.
Design Features
- Style: Faithfully replicates OEM contours, including lower air dams, fog light cutouts, and indicator slots.
- Customization: Optional vent slots for brake cooling or intercooler ducting (ideal for turbo builds).
- Compatibility: Integrates with factory or aftermarket fog lights, turn signals, and license plate brackets.
Installation
- FB Series 1-3: Direct bolt-on fitment using original chassis mounts.
- FC Series 1: Requires minor trimming of the lower valence for alignment.
- Adjustments: Works with OEM bumper shocks or lightweight aftermarket alternatives.
Material Comparison Table
| Material | Weight | Durability | Cost | Best For |
|---|---|---|---|---|
| Fibreglass | Light | Moderate | Affordable | Restorations, street/track hybrids |
| Steel | Heavy | High | Low | OEM purists, heavy-duty use |
| Carbon Fiber | Ultra-Light | High | Expensive | High-end performance builds |
| Plastic | Light | Low | Very Low | Budget repairs, temporary fixes |
Regional and Trim-Specific Notes
- JDM Savanna Models: Matches JDM-specific bumperettes and indicator placements.
- ADM Turbo Models: Fits factory intercooler ducting on 1984–1985 Turbo II variants.
- USDM GSL-SE: Aligns with 13B engine oil cooler openings (no modifications needed).
- FC Series 1 Compatibility: Designed for FC models with pop-up headlights (1986–1988).
VIN and Part Number Reference
- FB Chassis VIN Format:
SA22C-XXXXXX(e.g., SA22C-123456). - FC Chassis VIN Format:
JMZFC1-XXXXXXX. - OEM Cross-Reference:
- FB Series: Mazda P/N FB123-50-210A.
- FC Series: Mazda P/N FC1-50-300B.
Why Choose Fibreglass?
- Restoration Authenticity: Mimics original styling while offering modern resilience.
- Track-Ready Performance: Lightweight design enhances the RX7’s legendary handling.
- Customization Flexibility: Easily modified for vents, splitters, or aerodynamics.
This fibreglass front bar is the ultimate choice for enthusiasts seeking to preserve the Mazda RX7’s iconic design while upgrading its performance and longevity. Whether for concours judging, spirited driving, or competitive racing, it delivers unmatched versatility and value.
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