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LS1 Injectors

LS1 Fuel Injectors — Fuel Injector Clinic & Injector Dynamics

Upgrade your LS1 or LS6 engine with high-performance fuel injectors from Fuel Injector Clinic (FIC) and Injector Dynamics (ID) — two of the most trusted names in aftermarket fuel delivery. Whether you're building a naturally aspirated street car or a forced-induction track monster, the right injectors paired with reliable tuning data are the foundation of a safe, powerful setup.

Why Fuel Injector Clinic & Injector Dynamics?

Both FIC and ID injectors are engineered specifically for performance applications and come with what matters most: comprehensive, dead-accurate injector characterization data. Every injector set ships with detailed flow data including dead times (latency), offset voltages, and flow rates across a full range of fuel pressures. This isn't guesswork — it's lab-tested, real-world data that gives your tuner exactly what they need to dial in your fuel tables from the very first start-up.

The Importance of Injector Tuning Data

Injector tuning data is the single biggest factor that separates a clean, drivable tune from one that hunts, surges, or runs dangerously lean under boost. When your tuner has accurate dead time and flow characterization data, they can:

  • Achieve precise air-fuel ratios across the entire RPM and load range — from idle to wide-open throttle
  • Eliminate cold-start and part-throttle drivability issues that plague poorly characterized injectors
  • Reduce tuning time and dyno sessions, saving you money and getting you on the road faster
  • Protect your engine by ensuring fueling is never leaner than commanded, especially under high-load conditions

Cheap, uncharacterized injectors might flow the right amount of fuel at full duty cycle, but without proper data they create nightmares at low pulse widths — exactly where your engine spends most of its time on the street. FIC and ID injectors solve this problem with industry-leading characterization data that works seamlessly with HPTuners, EFILive, Holley, and other popular LS1 tuning platforms.

LS1 & LS6 Injector Options

We carry a full range of drop-in LS1/LS6 injector sets from 365cc (40 lbs/hr) all the way up to 2150cc (240 lbs/hr), with plug-and-play and solder-in wiring options available on most sizes. Whether you need mild fueling support for a cam-and-bolt-on build or serious flow for a supercharged or turbocharged LS1, we have the right set for your application.

Shop our complete selection of LS1 fuel injectors below, and don't hesitate to contact N2 Speed if you need help choosing the right injector size or wiring option for your build.

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