Vortech Standard Fuel Management Unit 8:1 FMU 5/16" Barb Fittings 6Z110-135
8:1 Rising-Rate Fuel Management Unit with 5/16" Barb Fittings
The Vortech Standard Fuel Management Unit (FMU) 8:1 (PN 6Z110-135) is a rising-rate, secondary fuel pressure regulator engineered for multi-point electronic fuel injected engines operating under boost. Installed in series with the factory fuel pressure regulator on the return line to the tank, this FMU increases fuel pressure in direct proportion to boost pressure - provided the fuel pump delivers sufficient pressure and flow.
The 8:1 calibration is designed for Vortech supercharger applications that require less fuel pressure increase than a 10:1 or 12:1 FMU to maintain safe air-to-fuel ratios. It is commonly paired with 24 lb/hr injectors in GT/LX-style applications, offering a balanced fueling solution when injector capacity has been modestly increased.
This version features 5/16" barb fittings, making it ideal for installations using rubber fuel hose connections. Like all Vortech FMUs, it is precision machined from 6061-T6 aluminum and finished in a durable blue anodized coating for corrosion resistance and long-term reliability.
Features & Functional Highlights
- 8:1 rising-rate fuel pressure increase referenced to boost
- Designed for multi-point EFI engines
- Installs in series with the factory regulator on the return line
- Ideal for applications requiring reduced pressure increase vs. higher-ratio FMUs
- CNC-machined 6061-T6 aluminum construction
- Blue anodized finish for durability and corrosion resistance
- 5/16" barb fuel fittings for hose-style connections
FMU Calibration Overview
- 12:1 - OE injectors, higher fuel pressure demand
- 10:1, 8:1, 7:1 - Applications requiring reduced pressure increase
- 6:1, 4:1, 3:1 - High-output builds using larger-than-stock injectors
Recommended Injector Pairings
- 12:1: 19 lb/hr injectors
- 10:1: 24 lb/hr injectors (Cobra)
- 8:1: 24 lb/hr injectors (GT/LX)
- 6:1: 30 lb/hr injectors
- 4:1: 38-42 lb/hr injectors
- 3:1: 50 lb/hr injectors
Injector Conversion: To convert from cc/min to lb/hr, divide by 10.5 (example: 440cc ? 42 lb/hr).
Service & Recalibration
- Vortech FMU recalibration kits are available
- Includes replacement ring, washer, and fluorosilicone diaphragm
- Allows conversion between FMU ratios as fueling requirements change
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 6Z110-135
- FMU Ratio: 8:1
- Fuel System: Multi-Point EFI
- Fittings: 5/16" Barb
- Material: 6061-T6 Aluminum
- Finish: Blue Anodized
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road and competition use only
- Installation on emissions-controlled vehicles operated on public roads may violate U.S. federal emissions law
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting supercharged EFI fuel systems. We can help you choose the proper FMU calibration, injector combination, and supporting fuel components to ensure safe, reliable power under boost.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
