79-84 RX-7 | ID1700 | Injector Dynamics | 1700.11.03.60.11.2-0

79-84 RX-7 | ID1750-XDS | Injector Dynamics | 1750.11.03.60.11.2

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ID1750-XDS, for 79-84 RX-7. 11mm (blue) adapters. -204 / 14mm lower o-rings. Set of 2.

The Best Just Got Better!

The ID1750 is the successor to the ID1700, featuring numerous improvements.
Compared to the 1700, the 1750 offers:

Higher Dynamic Flow Rate With no Increase in Minimum Fuel Mass.
Better Cylinder to Cylinder Balance at Low Pulsewidths.
Improved Pressure Sensitivity.

All while retaining the same “Compatible with everything but dirt” corrosion resistance that made the ID1700 famous.

Nominal Flow Rate – 1728cc/min @ 3.0 Bar (43.5 psi), Using E10 Emissions Certification Fuel at 49 Degrees C (120F)
Maximum Differential Fuel Pressure – 7.0 Bar (101.5 psi)
Fuel Compatibility – Compatible with Methanol/Ethanol/MTBE/Nitromethane/All Known Hydrocarbon Fuels.
Electrical Connector – USCAR

$669.90

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Frequently Asked Questions About the ID1750-XDS Injectors

Why choose ID1750-XDS injectors for a turbocharged 79-84 SA/FB RX-7?

The ID1750-XDS provides a massive 1750cc flow rate, necessary for highly modified 12A or 13B rotary engines running extreme boost or E85 fuel. They ensure reliable fuel delivery to support very high horsepower goals.

How does the part number 1750.11.03.60.11.2 fit the SA/FB RX-7 fuel system?

This specific Injector Dynamics configuration is designed for the 79-84 RX-7 and requires an aftermarket top-feed fuel rail conversion (common on turbo builds). It includes the correct 11mm adapters for a secure fit into the manifold.

Is an upgraded fuel pump and standalone ECU mandatory with these injectors?

Yes, the high 1750cc flow rate demands both a high-capacity fuel pump and a standalone ECU capable of utilizing the detailed Injector Dynamics data. A professional custom tune is essential for engine safety and performance.

What are the main durability benefits of the ID1750-XDS for the rotary engine?

The ID1750-XDS features robust stainless steel internals, providing superior corrosion resistance. This is a major benefit for RX-7 owners who choose to run corrosive fuels like E85 or methanol for high-power applications.

How many ID1750-XDS injectors should be purchased for the SA/FB RX-7?

For the rotary engine, you will need a set of four injectors to completely replace the fuel delivery system (two primary and two secondary). This ensures you have adequate fuel for all combustion faces.