Fore Innovations F4i Fuel Pressure Regulator
Fore Innovations F4i Fuel Pressure Regulator - Aftermarket Upgrade

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Fore Innovations F4i Fuel Pressure Regulator

Four Pressure Ports
Ceramic/Stainless valve
FKM/Nomex Composite Diaphragm
Fluoropolymer Coated Spring
Lifetime warranty - Compatible with all fuel types

  • Hydrodynamic internal cavity suitable for passthrough regulation
  • Zero chatter design for maximum life expectancy and maintained accuracy
  • FKM diaphragm for use in any fuel type
  • Fine Pitch adjustment screw for precise setting of fuel pressure
  • Four port design for maximum flexibility

Universal, any vehicle with a return style fuel system

Inlet Ports: two #8 o-ring, two #10 o-ring
Return Port: #10 o-ring
Auxillary Port: none
Boost/Vacuum Reference Port: 1/8 NPT (1/4" barb fitting included)
Base Pressure range: 25-70 psi
Boost Limit: 250 psi

How is the F4i improved over the F4 regulator?
Ceramic/Stainless valve (F4 had stainless/stainless valve)
Improved valve geometry for even higher accuracy

What is the key advantage of the F4i over the F2i?
Some installations may be simplified with F4i. Despite the higher cost of the F4i, the four pressure ports may eliminate y-blocks and associated fittings/hose/hose
ends...which leads to a faster, cleaner, and less expensive installation
Contact Fore Innovations for assistance with your installation.

System Options Include:
  • Include filter plug (for atmosphere reference)
List Price: $289.00

Availability: Usually Ships in 24 Hours
Product Code: F4I


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