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Injector Dynamics ID1050-XDS Injectors for the 1990-2005 Mazda Miata
This is the ID1050-XDS configuration Injector Dynamics publishes for the Mazda Miata 90-05, part number 1050.11.02.60.11.4-PU, supplied as a matched set of four. The manufacturer lists a separate part number for the Mazdaspeed Miata, so the two are not interchangeable even though the cars overlap in production years.
Flow is rated at 1065 cc/min at 3.0 bar and the injector carries corrosion-resistant internals, which is what allows Injector Dynamics to describe the X-Series as compatible with all known fuels. That matters on a Miata running an ethanol blend behind a turbo or supercharger.
Key Features
- Supplied as a dynamically matched set of four injectors in the 1050.11.02.60.11.4-PU configuration
- Improved internal flow path that raises output by five percent without sacrificing low-flow performance
- Stronger magnetic circuit for stable operation up to 10 bar
- Replaceable inlet filter to extend service life
- Corrosion-resistant internals for compatibility with all known fuels and extended service life on corrosive fuels
- Compact body that Injector Dynamics says fits more than 200 applications, including engines that use short-body injectors
- Listed by Injector Dynamics for Mazda Miata 1990-2005
Fitment
Injector Dynamics publishes a single vehicle application for this part number, and it is a genuine year, make and model entry rather than an engine-family listing, so it is carried through into the fitment tags on this listing.
| Years | Make | Model | Notes |
|---|---|---|---|
| 1990-2005 | Mazda | Miata | Listed by Injector Dynamics as Miata 90-05. The Mazdaspeed Miata uses the separate 1050.11.02.60.11.4 part number. |
Specifications
| Detail | Value |
|---|---|
| Brand | Injector Dynamics |
| Model | ID1050-XDS |
| Manufacturer part number | 1050.11.02.60.11.4-PU |
| Nominal flow rate | 1065 cc/min at 3.0 bar (43.5 psi), measured with gasoline at 52 C (125 F) |
| Maximum differential fuel pressure | 10.0 bar (145.0 psi) |
| Fuel compatibility | Compatible with all known fuels |
| Electrical connector | USCAR |
| Configuration code | 11.02.60.11 with the -PU suffix, as published by Injector Dynamics for the Miata 90-05 entry |
| Body length | 60 mm |
| Lower interface size | 11 mm |
| Set quantity | Four injectors |
| Listed application | Mazda Miata 1990-2005 |
| Design intent | Designed specifically for motorsport use, per Injector Dynamics |
| Warranty | One year from date of original purchase against manufacturer defects |
| Weight and packaged dimensions | Not published by Injector Dynamics for this part number |
What's Included
- 4 Injector Dynamics ID1050-XDS fuel injectors in the 1050.11.02.60.11.4-PU configuration, supplied as one dynamically matched set.
- Because Injector Dynamics documents no packaged contents for this part number, nothing beyond the injectors should be counted on, including seals, spacers and wiring components.
- Injector Dynamics distributes its dynamic flow and offset data digitally, and states that the data is under continual improvement.
About Injector Dynamics
Injector Dynamics builds the X-Series specifically for motorsport service and publishes an application table that ties each engine or vehicle to an exact configuration. The ID1050-XDS is the high-pressure member of that range, stable up to ten bar and built from corrosion-resistant materials so alcohol fuels do not shorten its life.
FAQ
What is the published flow rating?The manufacturer publishes a nominal flow rate of 1065 cc/min at 3.0 bar (43.5 psi), measured with gasoline at 52 C (125 F) for the ID1050-XDS.
Is there a limit on base fuel pressure?Yes. The manufacturer specifies a maximum differential fuel pressure of 10.0 bar (145.0 psi).
What does the manufacturer say about fuel compatibility?Compatible with all known fuels.
Is the connector polarity sensitive?The connector is a USCAR type, and Injector Dynamics states its injector connectors are not polarity specific, so power or ground can go to either pin.
Is this a matched set or loose injectors?It is a matched set. Injector Dynamics dynamically matches injectors together rather than shipping unmatched singles.
Is there a warranty on these injectors?Yes, one year from the date of original purchase against manufacturer defects.
Can the retainer be put back on after removal?No. Injector Dynamics states that once the molded O-ring retainer is removed it cannot be refitted.
Will cleaning always restore flow?Injector Dynamics states that where proper filtration or fuel-system maintenance has been neglected, it cannot guarantee the cleaning service will free lodged particles.
Can the factory injector data be reused?No. The manufacturer publishes its own dynamic flow and offset tables, and those values should be entered before the engine is started.
Will this set fit a Mazdaspeed Miata?Injector Dynamics lists the Mazdaspeed Miata under a different part number, 1050.11.02.60.11.4, without the -PU suffix. Order against the exact application entry rather than the model name.
Does the 1990-2005 range cover both the NA and NB Miata?The manufacturer publishes the application as Miata 90-05 without splitting the range by chassis generation, so treat the published year span as the authority and verify the rail and injector pocket on the car.
What does the -PU suffix change?Injector Dynamics uses the suffix to distinguish this Miata 90-05 configuration from the otherwise similar Mazdaspeed Miata part number. The manufacturer does not publish a separate definition of the suffix.
Installation Instructions
The manufacturer publishes cautions, connector guidance and characterization data, but no step-by-step installation procedure for this part number. Treat the factory service information for the engine as the authority on rail removal and fastener torque.
- Confirm that part number 1050.11.02.60.11.4-PU is the configuration Injector Dynamics lists for the Mazda Miata built between 1990 and 2005 before removing anything from the engine.
- Write down each injector serial number, found at the base of the connector, before installation. The manufacturer asks for them if the set is ever sent in for cleaning and inspection.
- Depressurise the system before anything is disturbed, then work through the factory service information for rail removal, which is the only published procedure for this engine.
- The molded O-ring retainer stays on unless Injector Dynamics has specifically told you the application requires its removal, because removing it on the wrong application risks catastrophic engine damage.
- Check that the injector seats fully in both the rail and the port with the 60 mm body and its listed interfaces before committing to the install.
- Building the plugs is a five millimetre strip, wire through the seal and into the terminal, bare conductor aligned with the crimp section, then crimp, following the manufacturer's connector guidance.
- Connect the two pins in whichever order suits the loom. Injector Dynamics states injector connector polarity is not specific.
- Use the factory service information for every fastener torque. The manufacturer publishes no torque specification for this configuration, and a generic figure should not be invented in its place.
- Do not start the engine until the current ID1050-XDS dynamic flow and offset values are loaded into the tuning platform.
- With the engine still stopped, pressurise the system, inspect all seals and unions for leaks, and satisfy yourself that fuel filtration meets the manufacturer's warranty requirement.
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