FIC FUEL INJECTOR CLINIC IS303-0850H Injectors FIC850 850CC 80LB

( Brand: Fic Fuel Injector Clinic ), ( Manufacturer Part Number: IS303-0850H ), ( Type: Fuel Injector ), ( Country Of Origin: United States )

Review FIC FUEL INJECTOR CLINIC 850cc 80lb Injectors

The **FIC Fuel Injector Clinic IS303-0850H FIC850 850cc 80lb Injectors** represent a premium, high-performance solution engineered for enthusiasts and professionals seeking precise fuel delivery in high-output, turbocharged, or naturally aspirated applications. These injectors are part of the FIC850 series, designed to handle substantial fuel loads with exceptional reliability and efficiency, making them an ideal choice for engines producing between 800 to 1,000 horsepower or more, depending on the setup. Each injector in this series is meticulously crafted with a **high-flow 850cc body**, allowing for robust fuel delivery without compromising on atomization quality, which is critical for optimal combustion and engine performance. The **80lb (36kg) weight** of these injectors underscores their robust construction, ensuring durability under extreme pressures and temperatures, whether operating in aggressive turbocharged environments or high-RPM naturally aspirated setups.

What sets these injectors apart is their **advanced internal design**, featuring a **dual-stage pintle nozzle** that enhances fuel atomization and ensures consistent spray patterns, even under varying load conditions. This precision is further supported by the **high-response solenoid**, which provides rapid and accurate fuel metering, reducing lag and improving throttle response essential for applications where instant power delivery is paramount. The **IS303-0850H** designation indicates a specific variant optimized for **high-pressure direct injection (HPDI) systems**, where fuel must be delivered with both force and accuracy to maximize efficiency and power output. These injectors are compatible with a wide range of fuel types, including ethanol blends, ensuring versatility for different regional fuel standards and performance tuning preferences.

Beyond their technical specifications, the **FIC Fuel Injector Clinic** brand is synonymous with quality and innovation, offering injectors that undergo rigorous testing to guarantee longevity and performance consistency. The **850cc flow rate** strikes a balance between high-volume delivery and fine atomization, making these injectors suitable for everything from street-legal performance builds to competition-grade engines. Whether integrated into a **turbocharged V8**, a **supercharged inline-six**, or a **high-revving naturally aspirated engine**, these injectors deliver the reliability and precision needed to push an engine to its limits without the risk of fuel-related issues such as fouling, clogging, or poor combustion. For tuners and builders who demand nothing less than excellence, the **FIC850 80lb injectors** are a testament to engineering precision, offering a seamless blend of power, efficiency, and durability.

**Pros and Cons of Buying FIC Fuel Injectors (Model FIC850, 850cc, 80lb Injectors) for a FI-C Engine**

### **Pros**

1. **High Flow Capacity** The 80lb injectors are designed for high-performance applications, making them suitable for engines producing around 850cc of displacement or higher. They provide adequate fuel delivery for aggressive tuning, forced induction, or high-RPM applications.

2. **Compatibility with FI-C Engines** These injectors are specifically engineered for Ford s FI-C platform (common in the Mustang GT, SVT Cobra, and similar high-performance models). They integrate well with the factory fuel system if properly upgraded.

3. **Durability and Reliability** FIC (Ford Injector Company) is a reputable brand known for producing durable injectors that can handle high fuel pressures and extended use without excessive wear.

4. **Better Fuel Efficiency for Performance** Compared to stock injectors, these larger injectors allow for smoother fuel delivery under heavy loads, reducing the risk of fuel starvation or hesitation during aggressive driving.

5. **Upgradability for Future Tuning** If you plan to increase power later (e.g., with a turbocharger or larger intercooler), these injectors provide a solid foundation before potentially upgrading to even larger flow rates (e.g., 1000cc or 1200cc injectors).

6. **OEM Replacement Option** If your stock injectors are failing, these are a direct upgrade that maintains compatibility with your existing fuel rail and wiring harness.

7. **Widely Available Support** FIC injectors come with technical support, and replacement parts (like O-rings, seals, and gaskets) are readily available.

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### **Cons**

1. **Cost** These injectors are more expensive than stock units, especially when factoring in labor for installation (if not doing it yourself). Prices typically range between **$200 $400 per injector**, depending on quantity and retailer.

2. **Fuel System Upgrades May Be Required** Simply swapping injectors may not be enough if your fuel pump, fuel rail, or fuel pressure regulator cannot handle the increased flow. Upgrading these components (e.g., to a high-flow fuel pump or electronic fuel pressure regulator) may be necessary, adding to costs.

3. **Tuning Required** Larger injectors require a **fresh tune** from a reputable tuner to prevent fueling issues (rich or lean conditions). A mis-tuned engine with these injectors could lead to poor performance, reduced fuel economy, or even damage.

4. **Potential for Fuel Sloshing** If your fuel tank is low on fuel, the larger injectors may draw air, causing hesitation or stumbling. This is more common in older vehicles with degraded fuel lines or weak pumps.

5. **Waste of Money if Power Goals Are Low** If your engine is naturally aspirated and not heavily modified, these injectors may be **overkill** and could lead to excessive fuel waste. For mild builds, smaller injectors (e.g., 600cc 700cc) might suffice.

6. **Installation Complexity** Replacing injectors requires removing the fuel rail, which can be tricky due to wiring harnesses, sensors, and mounting brackets. Improper installation (e.g., damaged O-rings, loose connections) can lead to leaks or electrical issues.

7. **Long-Term Cost of Maintenance** Larger injectors may require more frequent cleaning or replacement due to carbon buildup from high fuel flow, especially in high-mileage or poorly maintained engines.

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### **Conclusion**

The **FIC850 80lb injectors** are a **solid mid-range upgrade** for FI-C engines looking to push power significantly (e.g., 500 horsepower with forced induction or aggressive tuning). They strike a balance between flow capacity and practicality for most high-performance builds. However, they are **not a "set-and-forget" solution** proper fuel system support, a fresh tune, and careful installation are essential.

If your goals are **moderate** (e.g., 300 400 hp on NA or mild turbo), these injectors may be **overkill**, and smaller units (e.g., 600cc 700cc) could be more cost-effective. Conversely, if you plan **heavy modifications** (e.g., 1,000 hp), you may eventually need even larger injectors (e.g., 1000cc ).

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### **Recommendation**

- You have a **FI-C engine** (Mustang GT, SVT Cobra, etc.) and plan to **push 400 horsepower** with forced induction or aggressive tuning.

- You are **prepared to upgrade supporting components** (fuel pump, fuel rail, pressure regulator) and get a **fresh tune**.

- You want a **reliable, high-flow solution** that won t limit your engine s potential in the near future.

- Your build is **lightly modified** (e.g., NA with mild tuning), and you d be better off with smaller injectors.

- You **cannot afford or do not want to** invest in additional fuel system upgrades.

- You are **not comfortable** with installation or tuning requirements.

- For **budget builds**, look at **stock or slightly larger injectors** (e.g., 600cc 700cc) if power goals are modest.

- For **extreme power levels** (1,000 hp), consider **1000cc injectors** (e.g., FIC1000 or similar) to avoid fueling limitations.

- If cost is a concern, **used/refurbished FIC injectors** (from reputable sellers) can sometimes be found at a discount.

**Final Verdict:** These injectors are a **strong choice for serious FI-C builds**, but they require **proper planning and execution** to avoid common pitfalls. If you re unsure, consult a **performance tuner** before purchasing to ensure compatibility with your specific goals.

Details:

These are rated at 850cc 43psi and 980cc 58psi. They made 730whp at 70% duty cycle on a build LS3 with Biotech blower pump 93 only. Nothing but 93 ever ran thru these. Decided to go with bigger Injectors for flex Fuel.

Fast Free Shipping. FIC Fuel Injector Clinic 850cc Injectors for LS3.These are very lightly used with Dino time only.

part #: is3030850h prices

• $149.51-$679.99

specifications carfuelinjector:

• brand: Fic Fuel Injector Clinic
• mpn: Is303-0850h
• type: Fuel Injector
• country of origin: United States

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• # reviews: 1180
• city: Pulaski, Tennessee
• rating: 98.4%

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• condition: Used
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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