Injector Dynamics ID1300x Fuel Injectors - Set of 5 | Ford Focus RS MK II-IV | 60mm, 14mm Top & Lower O-Ring (1300.60.14.14.5)

Feed your Focus RS's 5-cylinder EcoBoost with the Injector Dynamics ID1300x fuel injectors. Rated at 1340cc/min at 3 bar, featuring advanced disc-style internals, full E85 compatibility, and Injector Dynamics' industry-leading characterization data, this set of 5 is engineered specifically for the Ford Focus RS MK II through MK IV 2.5T inline-5 engine.

Key Features:

• 1340cc/min flow rate at 3 bar (100cc/min at 4 bar)
• Set of 5 injectors (matches Focus RS 5-cylinder engine)
• 60mm body length
• 14mm top O-ring
• 14mm lower O-ring
• E85 and ethanol compatible
• Disc-style internals for linearity
• Full characterization data included
• Injector Dynamics quality and engineering

Performance Benefits:

• High Flow: 1340cc/min supports serious power levels on the Focus RS platform
• E85 Compatible: Handles ethanol blends without degradation
• Precise Tuning: Full characterization data enables accurate fuel modeling
• Linear Response: Disc-style internals provide consistent, predictable flow
• Wide Operating Range: Excellent low-pulse-width performance for idle quality
• 5-Cylinder Set: Correct quantity for the Focus RS inline-5 engine

Technical Specifications:

• Brand: Injector Dynamics
• Part Number: 1300.60.14.14.5
• Model: ID1300x
• Flow Rate: 1340cc/min @ 3 bar (43.5 psi)
• Quantity: Set of 5
• Body Length: 60mm
• Top O-Ring: 14mm
• Lower O-Ring: 14mm
• Fuel Compatibility: Gasoline, E85, ethanol blends
• Internals: Disc-style
• Characterization Data: Included
• Weight: 0.7 lbs

Fitment Information:

• Ford Focus RS MK II - 2.5T Inline-5 (Duratec RS)
• Ford Focus RS MK III - 2.5T Inline-5 (Duratec RS)
• Ford Focus RS MK IV - 2.5T Inline-5 (Duratec RS)
• Note: Verify injector dimensions (60mm length, 14mm top and lower O-rings) match your fuel rail before ordering
• Note: Set of 5 matches the Focus RS 5-cylinder engine cylinder count
• Tuning: Professional ECU tuning required after installation

What's Included:

• 5x Injector Dynamics ID1300x fuel injectors
• Injector characterization data
• Installation instructions
• Note: Professional ECU tuning required - not a plug-and-play power upgrade

Installation Notes:

• Professional installation and ECU tuning strongly recommended
• Verify injector dimensions match your fuel rail before installation
• Remove factory injectors and install ID1300x injectors
• Provide characterization data to your tuner
• Professional dyno tuning required for safe, optimal operation
• Fuel system upgrades (pump, lines, regulator) may be required to support 1340cc injectors

Why Set of 5? The Focus RS Inline-5 Engine:

The Ford Focus RS MK II through MK IV uses a 2.5-litre turbocharged inline-5 cylinder engine (Duratec RS), which is why this injector set contains 5 injectors rather than the more common 4 or 6. The inline-5 configuration is one of the defining characteristics of the Focus RS, producing a distinctive exhaust note and strong power output. When upgrading injectors on the Focus RS, it's critical to order the correct quantity of 5 to replace all cylinders simultaneously for consistent fuel delivery across all cylinders.

ID1300x - High Flow Performance Injector:

The ID1300x is Injector Dynamics' high-flow injector designed for serious performance applications. At 1340cc/min (approximately 127 lb/hr) at 3 bar, these injectors can support substantial power levels on gasoline or E85. The "x" designation indicates the advanced disc-style internals that provide superior linearity and low-pulse-width performance compared to ball-and-seat designs. This means the injectors perform accurately across the entire duty cycle range, from idle to wide-open throttle, enabling precise fuel control at all operating conditions.

Characterization Data - The Injector Dynamics Advantage:

Every set of Injector Dynamics injectors comes with comprehensive characterization data that describes the injector's precise flow behavior across different pulse widths, fuel pressures, and temperatures. This data is used by your tuner in the ECU to accurately model fuel delivery, enabling a more precise and efficient tune. Without accurate characterization data, tuners must estimate injector behavior, which can result in a less accurate tune. The Injector Dynamics characterization data is recognized and supported by all major ECU platforms including Haltech, Link, AEM, Motec, and others.

E85 and Ethanol Compatibility:

The ID1300x injectors are fully compatible with E85 and other ethanol blends. The internal components and seals are resistant to ethanol's corrosive properties, ensuring long service life even with sustained E85 use. E85 requires approximately 30-40% more fuel volume than gasoline due to its lower energy density, making high-flow injectors like the ID1300x essential for E85 Focus RS builds. The 1340cc flow rate provides ample capacity for high-power E85 applications on the Focus RS's 2.5T engine.

60mm Body Length - Dimensional Verification:

The 60mm body length, 14mm top O-ring, and 14mm lower O-ring dimensions must match your Focus RS fuel rail for proper fitment. These dimensions are specific to the Focus RS MK II-IV fuel rail configuration. Always verify your fuel rail's injector pocket dimensions before ordering. Using injectors with incorrect dimensions can result in fuel leaks or improper seating. If you are unsure of your fuel rail's specifications, consult your engine builder or tuner.

Fuel System Requirements:

Installing 1340cc injectors on the Focus RS typically requires a fuel system capable of supplying adequate fuel volume and pressure. At high duty cycles, 5x 1340cc injectors can demand significant fuel flow. Ensure your fuel pump, fuel lines, and fuel pressure regulator are capable of supporting the injectors' maximum flow requirements. An upgraded fuel pump is commonly required alongside high-flow injectors on the Focus RS platform. Your tuner can advise on fuel system requirements based on your target power level and fuel type.

Why Injector Dynamics?

Injector Dynamics is the industry standard for high-performance fuel injectors, trusted by professional engine builders, race teams, and tuners worldwide. Their commitment to providing accurate characterization data sets them apart from competitors, enabling more precise and reliable tunes. Injector Dynamics injectors are used in championship-winning race cars and high-power street builds worldwide.

Perfect For:

• Ford Focus RS MK II, MK III, and MK IV high-power builds
• E85 Focus RS builds needing high-flow ethanol-compatible injectors
• Focus RS builds requiring 1340cc injectors for serious power targets
• Any Focus RS application needing accurate characterization data for precise tuning
• Professional builds demanding Injector Dynamics quality on the 2.5T inline-5

Perfect For: Ford Focus RS MK II-IV owners seeking Injector Dynamics ID1300x injectors for high-flow fuel delivery on gasoline or E85 with accurate characterization data for precise tuning.

Pro Tip: Provide your tuner with the Injector Dynamics characterization data before your dyno session - it enables a more accurate and efficient tune from the start, especially important on the Focus RS's 5-cylinder engine.

Professional Tuning Required: 1340cc/min @ 3 bar. Set of 5 (inline-5 engine). 60mm length. 14mm top and lower O-rings. E85 compatible. Characterization data included.

Fuel your Focus RS build with Injector Dynamics ID1300x - 1340cc flow, E85 compatible, disc-style internals, industry-leading characterization data, set of 5 for the inline-5.