Injector Dynamics ID1750-XDS Fuel Injectors for Nissan GT-R R35, 370Z and Infiniti G37 - Set of 6

Injector Dynamics ID1750-XDS Injectors in the R35 Spacer Configuration for the GT-R, 370Z and G37

R35 in this part number is a configuration code, not just a car name. Injector Dynamics uses it for the 48 mm injector with the spacer arrangement its Nissan and Infiniti applications need, and lists three vehicles against it: the Nissan GT-R R35, the Nissan 370Z and the Infiniti G37. The importer data describes the same thing as a low spacer.

There is a trap in the GT-R listing that is worth knowing about before ordering. Injector Dynamics publishes a second GT-R R35 row for cars running V1 T1 rails, and that row points at an entirely different 60 mm part number. The rail on the car, not the badge on the back, decides which of the two is correct.

Key Features

• R35 spacer configuration rather than a plain 14 mm lower O-ring, which is what separates this number from the other 48 mm sets of six
• Listed by Injector Dynamics for the Nissan GT-R R35, Nissan 370Z and Infiniti G37
• Matched set of six, consistent with the manufacturer's published per-set pricing for this number
• A different part number applies to GT-R cars running V1 T1 rails, so the rail has to be identified before ordering
• 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

None of the three rows carries a published year range, so this listing has no fitment tags. R35 is also a chassis code, which would keep it out of a tag even if years were available. The application detail lives here instead, including the caution that Injector Dynamics lists a different part number for GT-R cars fitted with V1 T1 rails.

Specifications

What's Included

• Six Injector Dynamics ID1750-XDS fuel injectors in the 1750.48.14.R35.6 configuration, supplied as one dynamically matched set.
• There is no published contents list for this exact number, so the safe assumption is injectors only, with every seal or harness part treated as an extra.
• Injector Dynamics keeps its characterization tables online and revises them, so the copy used for tuning should be the current one, not an archived file.

About Injector Dynamics

The X-Series programme exists because production injectors were never intended for high-boost engines running alcohol. The ID1750-XDS came out of that programme with corrosion-resistant internals, a USCAR connector and a published characterization table for direct entry into an engine management system.

Related Parts

• Injector Dynamics ID1050-XDS in the same R35 spacer configuration, listed for the same three cars, set of six
• Injector Dynamics ID1300-XDS in the same R35 spacer configuration, listed for the same three cars, set of six
• Injector Dynamics ID2600-XDS in the same R35 spacer configuration, set of six
• Injector Dynamics 14 mm top O-ring, service seal for this configuration

FAQ

Yes. Flow is a family characteristic; the part number changes the physical interfaces, not the rating.

The offset table runs to 100 psid, but the rated maximum differential fuel pressure remains 7.0 bar (101.5 psi).

The published rating is measured on E10 emissions certification fuel; fuel density differences have to be handled in the calibration.

No. The connector is the electrical interface; rail fitment is governed by the body length and the top and lower interfaces in the part number.

Yes. The manufacturer's cleaning and inspection service asks for the whole set so the results stay matched.

Damage traced to the wrong fuel, poor filtration, or disregard of the manufacturer's published fuel and maintenance warnings.

Contamination, primarily. The manufacturer repeatedly points at fuel filtration as the deciding factor in injector longevity.

Injector Dynamics describes its characterization data as under continual improvement, so use the latest published table.

The manufacturer's own description of the X-Series as designed specifically for motorsport use is the best guide available.

The Nissan GT-R R35, the Nissan 370Z and the Infiniti G37, according to the manufacturer application table.

No. Injector Dynamics lists a separate part number for GT-R cars running V1 T1 rails. Identify the rail before ordering.

It designates the spacer configuration at the lower end of the injector, which the importer data describes as a low spacer. It is a geometry code as much as a vehicle reference.

No model years are published for any of the three rows, and R35 is a chassis code. Neither a year range nor a chassis code can produce a verified year, make and model tag here.

No. That number covers a different application list and uses a plain 14 mm lower O-ring rather than the R35 spacer arrangement.

It comes from the importer data behind this listing. Injector Dynamics publishes the R35 configuration code and the applications, but no dimensional drawing of the spacer.

Installation Instructions

There is no published procedure or torque specification for this exact configuration, so the steps below cover documented injector handling only and point elsewhere for everything vehicle-specific.

1. Confirm that part number 1750.48.14.R35.6 is the configuration Injector Dynamics lists for the Nissan GT-R R35, Nissan 370Z and Infiniti G37 before anything is removed from the engine.
2. Record every injector serial number from the base of the connector so the matched set can be tracked through its life.
3. Relieve pressure and isolate the fuel supply, then lift the rail using the factory-documented method rather than levering on the injectors.
4. The molded O-ring retainer should be left exactly as supplied unless Injector Dynamics has instructed otherwise for this specific application.
5. 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.
6. If the connectors are supplied loose, strip about 5 mm, pass the wire through the seal and into the terminal, and crimp with the exposed conductor in the crimp section.
7. Injector Dynamics states polarity does not matter at the injector connector, so the loom can be wired either way round.
8. Set all fasteners to factory service values. The injector supplier publishes no torque figures for this part number at all.
9. Enter the manufacturer's ID1750-XDS dynamic flow data into the tune first; guessing offsets on an injector this size is how engines are lost.
10. Pressurise with the engine stopped, inspect all seals and unions, and confirm adequate fuel filtration, which the manufacturer excludes failures from when neglected.