Injector Dynamics Fuel Injectors for Lexus

Lexus SC400 (UZZ30) — 1UZ-FE V8

The SC400's 4.0-litre 1UZ-FE V8 is one of the most swapped and turbocharged Toyota/Lexus engines in the aftermarket scene. Known for its reliability and smooth power delivery, the 1UZ responds well to forced induction, and upgraded injectors are essential once a turbo or supercharger is added. A set of eight ID1050x injectors on the 1UZ supports approximately 640 to 880kW at the crank on petrol. On E85, eight ID1050x injectors cover up to approximately 440 to 640kW. Select the "SC400" variant when ordering — this set uses a 60mm body length.

Lexus / Toyota 2JZ-GE — Air-Assist Injection

The naturally aspirated 2JZ-GE is a common starting point for turbo conversions, with the iron block and strong bottom end making it an affordable alternative to the factory turbo 2JZ-GTE for high-power builds. The 2JZ-GE uses an air-assist injection system with a unique injector configuration that differs from the standard 2JZ-GTE setup, requiring a specific injector fitment (30mm, set of six). A set of six ID1050x injectors supports approximately 480 to 660kW at the crank at 80% duty cycle on petrol, or approximately 330 to 480kW on E85. For high-boost E85 builds beyond 500kW, the ID1300x and ID1750x provide the additional flow needed.

Fuel System Components

Alongside injectors, this collection carries the IDF750 fuel filter in black with replacement elements and O-ring kits, the F1250 in-line fuel filter available as a kit with bracket or as filter, mount and element separately, the dual fuel pressure/temperature sensor suited to the ID750 filter, and the BPC100 brushless pump controller with or without the E5LM fuel pump.

Other Injector Dynamics Applications

Browse the full Injector Dynamics range, or other platforms including Toyota, Nissan, Subaru, Mitsubishi, Honda, Mazda, BMW, Ford, Holden and universal fitment. All stocked brands are listed on our brands page.

Start with the chassis and engine code. The SC400 (UZZ30) uses the 1UZ-FE V8 and takes a set of eight 60mm injectors. The 2JZ-GE air-assist application takes a set of six 30mm injectors, and the air-assist intake manifold requires a specific body length and O-ring configuration — select the "2JZ-GE Air-Assist" variant when ordering so the fitment matches.

Flow rate is the next decision. The XDS Lexus injector sets are offered in 1050, 1300, 1750 and 2600cc options. Petrol builds generally suit the ID1050x; E85 builds require more flow for the same power, so high-boost E85 combinations beyond roughly 500kW move to the ID1300x or ID1750x. Read our fuel injector sizing guide for detailed power range calculations.

All ID injectors are compatible with petrol, E85, E100 and methanol, with corrosion-resistant stainless steel internals designed for extended service. If you are also upgrading filtration or pump control, match the F1250 or IDF750 filter to your fitting sizes and plumbing layout.

Installation and tuning by a qualified professional is recommended. Fuel system work involves pressurised fuel lines and requires the vehicle to be retuned before it is driven.

Every set of Injector Dynamics injectors ships with complete characterisation data — dynamic slope flow rates, dead time values across voltage and pressure ranges, and dynamic flow matching at multiple pulse widths. This data is compatible with all major ECU platforms including Haltech, MoTeC, Link and AEM, and your tuner loads it directly into the ECU for accurate fuelling from the first start-up. See our injector characterisation data guide for more detail.

Depending on the build you may also need new injector O-rings, a fuel rail and regulator suited to the target flow, adequate fuel pump and filtration capacity, and an ECU capable of accepting the supplied injector data.

Which Injector Dynamics injectors suit a Lexus SC400?

The SC400 (UZZ30) with the 1UZ-FE V8 uses a set of eight 60mm XDS injectors. Select the "SC400" variant when ordering.

Why does the 2JZ-GE need a different injector to the 2JZ-GTE?

The 2JZ-GE uses an air-assist injection system with a unique injector configuration, so it requires a 30mm set of six with the correct body length and O-ring configuration for the air-assist intake manifold.

Are Injector Dynamics injectors E85 compatible?

Yes. All ID injectors are fully compatible with petrol, E85, E100 and methanol, and use corrosion-resistant stainless steel internals.

Do the injectors come with data for my ECU?

Yes. Each set ships with full characterisation data, including dynamic slope flow rates and dead time values, compatible with ECUs such as Haltech, MoTeC, Link and AEM.