Civic 02-05 Si | ID1050-XDS | Injector Dynamics | 1050.48.14.14.4
ID1050-XDS, for 02-05 Civic Si / K-series. 14mm (grey) adapter top. Set of 4.
The ID1050-XDS is the evolution of the ID1050x.
The ID1050-XDS benefits from Dual Slope Matching, a method of matching the flow rate in both the linear, and nonlinear operating range, providing better cylinder to cylinder consistency at low pulse widths.
Corrosion resistant internals make it compatible with all known fuels, capable of extended service life with corrosive fuels.
Compact body allows fitment in 200+ applications, including current and future engines utilizing short body injectors.
Stronger magnetic circuit offers stable operation up to 10 bar.
Replaceable inlet filter extends service life.
Base Specifications
Nominal Flow Rate – 1065cc/min @ 3.0 Bar (43.5 psi) Using Gasoline at 52 Degrees C (125 Degrees F)
Maximum Differential Fuel Pressure – 10.0 Bar (145.0 psi)
Fuel Compatibility – Compatible With All Known Fuels
Electrical Connector – USCAR
Details
Frequently Asked Questions About the Civic 02-05 Si ID1050-XDS Injectors
What maximum E85 wheel horsepower can the ID1050-XDS support on a turbocharged or naturally aspirated Civic 02-05 Si?
The ID1050-XDS (1050 cc/min at 43.5 psi) provides high-flow fueling for K-series engines in the Civic 02-05 Si. This injector set can support wheel horsepower well into the 450+ WHP range on E85, making it ideal for high-performance naturally aspirated builds or aggressive turbocharged setups.
Is the 48mm ID1050-XDS a direct drop-in for the Civic 02-05 Si factory fuel rail?
Yes. This injector set is configured to the 48mm O-ring-to-O-ring length used in Civic K-series applications. It installs directly into the factory fuel rail and intake manifold bosses without requiring spacers or modifications, providing a true plug-and-play upgrade.
Do these ID1050-XDS injectors require PNP adapters for the Civic 02-05 Si?
No adapters are necessary. The USCAR-style connectors on the ID1050-XDS injectors are compatible with the factory Civic 02-05 Si harness, allowing clean plug-and-play installation without cutting, splicing, or wiring modifications.
Where can my tuner find injector characterization data for tuning the Civic 02-05 Si ECU?
Injector Dynamics provides validated Dead Time (Latency), Short Pulse Adder tables, and Flow vs. Pressure data for K-series Honda engines. This information is essential for tuning with Hondata, KTuner, or similar platforms to ensure precise fueling, stable idle, and consistent air/fuel ratios under all operating conditions.
What fuel filtration is recommended for E85 when using the ID1050-XDS on a Civic 02-05 Si?
Due to the precision internal clearances of the ID1050-XDS and E85’s corrosive properties, a high-quality post-pump fuel filter is mandatory. Injector Dynamics recommends a 10-micron or finer filter to protect the stainless steel internals and ensure long-term reliability in high-performance applications.
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