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Top Street Performance

Velocity High-Flow Fuel Injectors for LS3 and LS7, 100 lbs/hr

Velocity High-Flow Fuel Injectors for LS3 and LS7, 100 lbs/hr

SKU: SKU: 81051-100

Regular price $527.33
Sale price $527.33 Regular price $527.33
Shipping calculated at checkout.

Out of stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Configured for GM LS3/L92 rectangular-port applications
  • 100 lbs./hr. flow rate for high-demand fuel delivery
  • USCAR plug style with included O-rings for a proper seal
  • Set of 8 injectors, precision-matched for even cylinder delivery

Description

Configured for GM LS3/L92 rectangular-port applications, this fuel injector set supports precise fuel metering, consistent cylinder-to-cylinder delivery, and EFI calibration flexibility. Flow rate is 100 lbs./hr., with a high-impedance, 12V saturated circuit driver — match these specs to your ECU, fuel pressure, and engine fuel demand.

This set uses a USCAR plug style with male blade terminals (2 per connector). Seat-to-seat height is 1.480", with a maximum outside diameter of 0.580". O-rings are included: 0.580" manifold O-ring and 0.551" rail O-ring. Confirm fuel rail fit, intake fit, and injector depth before installation.

These injectors are designed for TSP Velocity intake/fuel rail combinations only and will not work with stock applications — flow rate, plug style, impedance, and calibration must be matched to your EFI system before startup.


Applications
Fits the following TSP Velocity combinations: 81003 LS3 Intake Manifold with 81009 Fuel Rails, or 81007 LS7 Intake Manifold with 81011 Fuel Rails. Not compatible with stock intake/fuel rail setups.

Specifications
100 lbs./hr. flow rate, high impedance, 12V saturated circuit driver, USCAR plug style, male blade terminals (2), 1.480" seat-to-seat height, 0.580" max outside diameter.

Specs

Driver Type12V Saturated Circuit
Flow Rate100 lbs./hr.
Fuel Injection TypeMulti-port
Fuel Rail O-ring Outer Diameter0.551 in.
Fuel TypeGas
ImpedanceHigh
Injector Plug StyleUSCAR
Manifold O-ring Outer Diameter0.580 in.
Maximum Outside Diameter0.580 in.
O-Ring Quantity2
O-rings IncludedYes
QuantitySet of 8
Seat to Seat Height 1.480 in.
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade

Engine Fitment

COMPATIBLE WITH
FITS THE FOLLOWING TSP VELOCITY COMBINATIONS
• 81003 LS3 Intake Manifold with 81009 Fuel Rails
• 81007 LS7 Intake Manifold with 81011 Fuel Rails

NOTES
Will not work with stock applications

COMMON VEHICLE APPLICATIONS
Chevrolet Silverado
GMC Sierra
Chevrolet Camaro
Chevrolet Tahoe

Q&A

What applications are these fuel injectors compatible with?
These fuel injectors are designed for FITS THE FOLLOWING TSP VELOCITY COMBINATIONS.


Will these injectors fit GM LS applications?
Yes, these injectors are designed for compatible GM LS-based applications and should be matched to your fuel system and tuning setup.


What size are these fuel injectors?
These injectors are rated at 100 lbs./hr., which determines how much fuel they can deliver and should be matched to your horsepower goals.


What impedance are these injectors?
These injectors are high, so they should match your ECU and wiring setup.


What fuel type are these injectors designed for?
These injectors are designed for use with gas.


Will I need tuning after installing these injectors?
Yes, larger or different injectors typically require ECU tuning to ensure proper fueling and performance.


Do these injectors come ready to install?
These injectors are designed for installation, but seals, adapters, or tuning may be required depending on your setup.


Are these a good upgrade over stock injectors?
Yes, performance fuel injectors can support higher horsepower levels and improved fuel delivery when matched to the correct setup.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.