PRIMOS TW Choke InVector Plus 12GA .670 - High‑Performance Automotive ChokePRIMOS TW Choke InVector Plus 12GA .670 (PS6775) – Ultimate Throttle Control
Engineered for high‑performance applications, the PRIMOS TW Choke InVector Plus 12GA .670 delivers precise air‑fuel mixture control, boosting power output while maintaining smooth idle quality. Whether you’re upgrading a street car, building a track machine, or restoring a classic, this choke offers unmatched flow characteristics and durability.
Key Benefits & Features
- Precision Flow Design: The 12‑gauge construction and .670‑inch inlet provide optimal airflow for improved combustion efficiency.
- InVector Plus Technology: Advanced inlet geometry reduces turbulence, ensuring a steady, laminar air stream to the carburetor.
- Durable Materials: Crafted from high‑grade aluminum alloy with reinforced sealing surfaces for long‑term reliability.
- Easy Installation: Direct bolt‑on fit for most 4‑stroke engines, complete with OEM‑style gaskets.
- Enhanced Engine Response: Faster throttle response and smoother transition between idle and full‑throttle conditions.
- Compatibility: Designed for a wide range of applications, including performance street, off‑road, and racing engines.
Technical Specifications
| Model | PRIMOS TW Choke InVector Plus 12GA .670 |
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| Part Number | PS6775 |
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| UPC | 010135067755 |
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| Material | Aircraft‑grade Aluminum Alloy |
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| Gauge | 12 GA |
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| Inlet Diameter | .670 inches |
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| Thread Size | 1‑5/8" NPT (standard) |
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| Operating Temperature Range | -40°C to +150°C |
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| Weight | 0.45 kg (1.0 lb) |
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| Fitment | Universal – compatible with most 4‑stroke gasoline engines |
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Why Choose PRIMOS?
PRIMOS has a heritage of delivering top‑tier performance components that stand up to the most demanding conditions. The InVector Plus line builds on decades of engineering expertise, offering a choke that not only meets OEM specifications but exceeds them, giving you the edge on the road or the track.
Installation Tips
- Ensure the engine is cool and disconnect the battery before beginning work.
- Remove the existing choke and clean the mounting surface thoroughly.
- Apply a thin layer of high‑temperature RTV sealant to the gasket surface for a leak‑free seal.
- Align the new PRIMOS choke with the mounting holes and torque the bolts to the manufacturer’s specifications (typically 8‑10 Nm).
- Reconnect the throttle linkage, double‑check clearance, and perform a functional test.
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