Total Racing Products 12 Injector Controller Kit For Ecutek – R35 GTR

The Total Racing Products 12 Injector Controller Kit is the ultimate solution for high horsepower R35 GTR builds running Ecutek who want precise, reliable, and lightning fast control of a secondary bank of injectors. Designed for the shops and tuners who refuse to compromise, this kit gives you the hardware you need to support massive fuel demands without risking the factory ECU or fighting inconsistent injector behavior.

This is not a conversion kit with rails or injectors included. This is the electronics, the wiring harness, and the engineering that make a 12 injector setup function at a professional level.

Every kit includes a dedicated fuel injector harness equipped with USCAR/EV14 connectors, fully compatible with the most common high performance injectors on the market, including Injector Dynamics 1050, 1300, 1700, 1750, and 2600 models.

At the core of the system is our TRP 12 Injector Driver, housed in a carbon fiber infused enclosure, fully sealed with epoxy for total weather resistance, and equipped with a motorsports grade 23-pin AMPSEAL connector to ensure rock solid reliability even in the harshest conditions.

How It Works

Your factory ECU controls the primary injectors. The TRP controller reads those injector signals and generates a perfectly synced secondary signal to fire the additional injectors with near zero delay. This allows tuners using Ecutek to stage fuel seamlessly, supplying the airflow demands of big turbo and high ethanol content engines without rewriting how the factory ECU behaves.

The TRP controller takes the original injector pulse, isolates it, protects the ECU, and mirrors it precisely to the second bank. The OEM ECU stays safe, the injection events stay perfectly timed, and your tuner gets a clean, predictable, latency-free platform to work with.

Why The TRP 12 Injector Controller Is Significantly Better Than The Competition

Most controller boxes simply “listen and fire.” Ours actually solves the known issues with the typical 12 injector control solutions on the market.

Higher Drive Current

Our controller delivers about twice the drive current of competitor products. That means it can reliably fire any size injector you want to run, including huge ID2600-class injectors, without stress, inconsistency, or heat issues.

Fully Isolated Inputs to Protect the OEM ECU

Your stock ECU stays protected.
All injector inputs are isolated and load the OEM circuit with barely 1mA. This is extremely important. It prevents added delay or distortion to the primary injector signal, which keeps the factory fueling perfect and prevents timing offset issues that tuners hate.

Output Latency So Low It Is Effectively Zero

The controller mirrors the OEM injector pulse with a delay of only about 367 nanoseconds. That is not a typo.
On a ten millisecond injector pulse, that is a difference of roughly 0.004 percent.
It is so small that your tuner does not need to compensate for anything.

You could literally use this unit as a signal buffer for the OEM ECU because the reproduction is that accurate.

Clean Shutdown, No Extra Fuel

When the OEM injector turns off, our “off” delay is only about four microseconds.
That is about 0.04 percent of the fueling window. Again, completely insignificant to the tune and far faster than any competing unit.
Your secondary injectors behave exactly like the primaries, not “sort of close” like cheaper designs.

Superior Electrical Protection

Inputs and outputs are heavily protected against noise, spikes, and electrical anomalies, ensuring your stock ECU and secondary injectors are shielded from conditions that would damage lesser controller boxes.

Weatherproof, Motorsports Ready Construction

The carbon fiber infused case is fully sealed with epoxy.
The 23-pin AMPSEAL connector is motorsports grade.
The unit is built to handle heat, vibration, underhood contamination, and the realities of racing and street use.

Key Features

• Complete 12 injector controller system designed specifically for Ecutek equipped R35 GTRs
• Includes TRP secondary injector harness with USCAR, EV14 compatible connectors
• Carbon fiber infused enclosure, fully weather sealed
• Motorsports grade 23-pin AMPSEAL connector
• About double the drive current of competitor products
• Fully isolated inputs place only ~1mA load on OEM injector circuits
• Ultra fast output response, ~367ns “on” delay
• ~4μs “off” delay for clean termination
• Designed for Injector Dynamics 1050, 1300, 1700, 1750, and 2600 injectors
• Engineered to protect the stock ECU from electrical load, noise, and injector driver contamination
• Perfect for high horsepower, high boost, high ethanol builds where injector control precision matters

Not all wiring is created equally. We use TXL wire featuring XLPE insulation that is heat, flame, gasoline, grease, and acid resistant and is used in extreme temperature applications of -40°F to 257°F!