Nexus V8 Junior Timer (EV1)Secondary Injector Breakout

Overview

The Haltech Nexus V8 Junior Timer Secondary Injector Breakout transforms your staged injection setup into a plug-and-play solution when running EV1-style secondary injectors. Designed specifically for high-power V8 builds where primary injectors hit their flow limits, this breakout eliminates the need for custom splicing whilst maintaining the clean, professional finish your engine bay demands.

Technical Specifications

• Part Number: HT-186001
• Connector Type: EV1 Style Secondary Injectors
• Primary Compatibility: Nexus R5 Universal V8 Terminated Harness (HT-186200)
• Application: Staged Injection Systems
• Channels: Full V8 Secondary Bank Coverage

Why You Need This

When your LS3, Gen III Hemi, or Coyote build pushes beyond what primary injectors can deliver, secondary injection becomes essential. The challenge has always been integrating those secondaries cleanly without butchering your main harness. This breakout solves that problem definitively. We see this constantly in our shop — customers running big turbo LS swaps or supercharged Coyote builds who've maxed out their primaries at 80-90% duty cycle and need staged injection to safely deliver the fuel flow their power goals demand.

The EV1 format covers a massive range of high-flow secondaries — from ID1300x to DW2000cc units that serious power builds require. Without this breakout, you're looking at cutting into your expensive main harness or running separate driver circuits. Both approaches introduce reliability concerns and complicate your build unnecessarily. This plug-and-play solution maintains the integrity of your primary harness whilst giving you professional-grade secondary injection integration.

ECU & System Compatibility

Specifically engineered for the Haltech Nexus R5 when paired with the Universal V8 Terminated harness (HT-186200). The Nexus R5's advanced staged injection algorithms handle the switching between primary and secondary banks seamlessly, but only when the hardware interface is properly matched. Contact our technical team to confirm compatibility with your specific Nexus configuration and injector selection.

What's in the Box

• Nexus V8 Junior Timer Secondary Injector Breakout Module
• EV1 Connector Interface for 8 Secondary Injectors
• Plug-and-play connection to HT-186200 harness
• Haltech installation documentation

Complete Your Build

Most customers adding this breakout are completing serious staged injection builds and typically require the Nexus R5 Universal V8 Terminated harness (HT-186200) if not already specified. High-flow EV1 secondary injectors from Injector Dynamics or DeatschWerks pair perfectly with this setup. Our technical team stocks the complete Haltech Nexus ecosystem and can guide you through injector sizing and staged injection calibration requirements specific to your platform and power goals. With UK stock and same-day despatch, we'll get your staged injection system sorted quickly.