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Injector Dynamics ID1750-XDS Injectors for the 2001-2006 BMW M3 and Four More Six-Cylinder Applications
Five applications share this configuration and only one of them comes with published model years. Injector Dynamics lists 1750.48.14.14.6 for the BMW E46 M3 built between 2001 and 2006, the Infiniti G35, the Nissan 350Z, the Nissan Patrol and the Porsche 996 and 997.1 Turbo. The BMW row is the one that produces a fitment tag, and the tag names the M3 without the chassis code, because a storefront year-make-model search has no field for E46.
Physically this is the plain 48 mm build: a 14 mm top O-ring, a 14 mm lower O-ring and nothing between the injector and the rail. It sits alongside a 48 mm number with a black bottom adapter and another with an R35 spacer, and those three are not substitutes for one another despite sharing a body length.
Key Features
- The configuration Injector Dynamics lists for the E46 M3 01-06, Infiniti G35, Nissan 350Z, Nissan Patrol and Porsche 996/997.1 Turbo
- Matched set of six, consistent with the manufacturer's published per-set pricing for this number
- Plain 48 mm build with 14 mm top and lower O-rings, distinct from the black bottom adapter and R35 spacer versions of the same body length
- Single configuration spanning naturally aspirated and turbocharged six-cylinder engines, so calibration rather than fitment is the limiting factor
- Rated at 1728 cc/min at 3.0 bar (43.5 psi) on E10 emissions certification fuel, with a published maximum differential fuel pressure of 7.0 bar
- Compatible with methanol, ethanol, MTBE, nitromethane and all known hydrocarbon fuels, with a USCAR electrical connector
- Published dynamic flow and offset data from 8 to 16 volts across the working pressure range, for direct entry into an engine management system
Fitment
| Years | Make | Model | Notes |
|---|---|---|---|
| 2001-2006 | BMW | M3 | Published as E46 M3 01-06; the chassis code stays out of the tag |
| Not published | Infiniti | G35 | No model years published, so no tag is created |
| Not published | Nissan | 350Z | No model years published, so no tag is created |
| Not published | Nissan | Patrol | No model years published, so no tag is created |
| Not published | Porsche | 996 and 997.1 Turbo | No model years published, so no tag is created |
Chassis codes such as E46, 996 and 997.1 identify the car to an enthusiast but are not searchable vehicle records, so they appear here rather than in the tag set. The BMW row becomes fits 2001 to 2006 BMW M3. The remaining four rows carry no manufacturer year ranges at all, and no tag has been invented for them.
Specifications
| Detail | Value |
|---|---|
| Brand | Injector Dynamics |
| Model | ID1750-XDS |
| Manufacturer part number | 1750.48.14.14.6 |
| Configuration code | 48.14.14 as published by Injector Dynamics |
| Body length | 48 mm |
| Top interface | 14 mm O-ring |
| Lower interface | 14 mm O-ring, no bottom adapter |
| Set quantity | Six injectors |
| Nominal flow rate | 1728 cc/min at 3.0 bar (43.5 psi), measured on E10 emissions certification fuel at 49 C (120 F) |
| Maximum differential fuel pressure | 7.0 bar (101.5 psi) |
| Fuel compatibility | Compatible with methanol, ethanol, MTBE, nitromethane and all known hydrocarbon fuels |
| Electrical connector | USCAR |
| Design intent | Designed specifically for motorsport use, per Injector Dynamics |
| Warranty | One year from date of original purchase against manufacturer defects |
| Packaged contents and weight | Not published by Injector Dynamics for this part number |
What's Included
- Six Injector Dynamics ID1750-XDS fuel injectors in the 1750.48.14.14.6 configuration, supplied as one dynamically matched set.
- Injector Dynamics lists this part number without a packing list, which means the injectors are all that can be counted on. Anything else the install needs is a separate line item.
- The voltage-by-pressure offset table for this injector is a published document, not a boxed item, and should be re-downloaded before every fresh calibration.
About Injector Dynamics
As an engineering-led supplier, Injector Dynamics publishes the ID1750-XDS with a pressure ceiling, a fuel-compatibility statement and a characterization table rather than a marketing horsepower figure. Application rows in its catalogue name the exact configuration to order for each engine.
Related Parts
- Injector Dynamics ID1050-XDS in the same 48 mm 14 mm configuration and application rows, set of six
- Injector Dynamics ID1300-XDS in the same 48 mm 14 mm configuration and application rows, set of six
- Injector Dynamics ID2600-XDS in the same 48 mm 14 mm configuration, set of six
- Injector Dynamics Viton 14 mm bottom O-ring, service seal for this configuration
FAQ
Does flow change with fuel pressure?Yes. The manufacturer's table shows slope rising from 1728 cc/min at 43.5 psid to 2216 cc/min at 70 psid and 2645 cc/min at 100 psid.
Does the manufacturer state a pressure limit?It does: 7.0 bar (101.5 psi) maximum differential fuel pressure.
Do these need special handling on methanol?The injector itself is listed as methanol compatible, but the manufacturer still excludes failures caused by inadequate filtration or the wrong fuel type from warranty.
Does the set come with pigtails?The manufacturer publishes no contents list, so connector kits and pigtails should be treated as separate items even though the injector is USCAR.
Does matching matter at this flow rating?It matters more, not less. Larger injectors spend more time in the short pulse-width region where dynamic differences show up.
Does motorsport use affect warranty?The manufacturer's coverage is for defects. Wear and contamination-related failures are handled separately from the one-year defect warranty.
How often should injectors be serviced?The manufacturer ties service need to fuel quality and filtration rather than to a fixed interval.
Where does the offset table come from?It is published by the manufacturer for the ID1750-XDS and is updated over time as testing continues.
Is there a CARB number for these?None is published in the manufacturer documentation for this injector.
Which BMW M3 does this fit?The manufacturer publishes E46 M3 01-06 against this number, which is the M3 built from 2001 to 2006.
Why does the fitment tag not mention E46?E46 is a chassis code. Fitment tags on this store are built from year, make and model so that the storefront search can match them, so the chassis code is documented in the copy instead.
Does this fit the E90 M3?No. The 07 and later M3 is listed against a different set of eight, because it is a V8 rather than a six-cylinder.
Is the Infiniti G35 the same part?Yes, the G35 row points at this exact number, but Injector Dynamics publishes no model years for it, so verify the car and the rail before ordering.
Does this suit the Porsche 996 Turbo?The application table lists 996/997.1 TT against this number. Note that the naturally aspirated 996/997.1 is listed under a different configuration.
What separates this from the R35 version?The lower interface. The R35 number adds a spacer arrangement for the Nissan GT-R and its relatives; this one is a plain 14 mm lower O-ring.
Installation Instructions
No manufacturer installation sheet exists for this configuration. The list below reflects only published cautions and connector guidance; rail removal and fastener torque come from the factory service information.
- Confirm that part number 1750.48.14.14.6 is the configuration Injector Dynamics lists for the 2001-2006 BMW M3, Infiniti G35, Nissan 350Z, Nissan Patrol and Porsche 996/997.1 Turbo before anything is removed from the engine.
- Photograph or transcribe the serial number at the base of every connector; the manufacturer's service process depends on them.
- Depressurise the system first, then use the factory service information for rail removal; the injector manufacturer publishes no removal steps.
- Do not remove the molded O-ring retainer as a matter of course. Injector Dynamics restricts that modification to applications it has approved.
- Check that the injector seats fully in the rail and in the port with the 48 mm and its listed interfaces before committing to the install.
- Terminating the harness follows the manufacturer's method: about 5 mm of insulation off, wire through the seal into the terminal, conductor in the crimp section, crimp.
- The injector connector is not polarity sensitive, so the harness can be terminated in whichever orientation is convenient.
- There is no injector-side torque specification, so the factory service information for the engine governs every fastener on the job.
- The ID1750-XDS offset and slope values must be in the tune before the engine turns over, not adjusted afterwards.
- Cycle the pump to pressure without cranking, check for seepage at each injector, and verify filtration before the engine runs.
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