Performance Fuel Injector Upgrades: A Complete Guide

Unlocking More Power

Upgrading your fuel injectors is essential when modifying your engine for more power. Here's everything you need to know about performance fuel injector upgrades.

When to Upgrade

• Adding forced induction (turbo/supercharger)
• Installing larger displacement engine
• Nitrous oxide systems
• E85 conversion

Sizing Your Injectors

Use the formula: Injector Size (cc/min) = (HP × BSFC) ÷ (Number of Injectors × 0.8)

For gasoline: BSFC = 0.45-0.5

For E85: BSFC = 0.65-0.7

Installation Tips

• Always replace O-rings
• Use dielectric grease on connections
• Have your ECU tuned for new injectors