Mechanical System Support

• General
  • Mechanical Fuel Injection Overview
  • Installation Schematic (download)
  • Installation Instructions
  • Operating Tips
• Fuel Injector Manifolds
  • Manifold Adjustments
  • Can I run a HILBORN mechanical fuel injector on a street car?
  • How to avoid corrosion on magnesium castings
  • How to set the metering valve
  • How to adjust the metering valve
  • How can I loosen a stuck barrel valve rotor?
• Fuel Pumps
  • Do I need to use a mechanical fuel pump with mechanical fuel injection or can I substitute an electric pump?
  • Which fuel pump should I run?
  • How can I identify the rotation of my fuel pump?
  • How to change rotation of the fuel pump
• Ram Tubes
  • What difference does ram tube length make?
• By-Pass Valves
  • The Primary By-Pass Valve
  • The Secondary By-Pass Valve
  • The Hi-Speed Cutoff Valve
• Pump Drives
• Miscellaneous
  • Leakdown Metering Valve
  • Leak Tester Instructions
  • Cleaning and off-season care instructions

Electronic System Support

• Fuel Injector Manifolds
  • Manifold Installation
  • Manifold Adjustments
  • Can I run a HILBORN EFI injector on a street car? What about a mechanical injector on the street?
  • Common Plenum vs. Individual Runner
• FAQ's
  • Carabine EFI
  • FAST EFI
• Carabine ECU
  • ECU Wiring Schematic (download)
  • ECU Power Detail Schematic (download)
  • Ignition Wiring Schematic (download)
• Carabine EFI Troubleshooting
  • No initial start after install
  • No start
  • Popping out of ram tubes
  • Popping out of the exhaust
  • Poor sound quality at idle
  • High idle
  • Intermittent Concerns including: Engine stutters or skips, ECU doesn’t follow engine RPM, rough idle or dead spots and hesitation that can’t be tuned out
  • Fuel pressure drops while cranking
  • Noisy fuel pump
• Ram Tubes
  • What difference does ram tube length make?
• Fuel Systems
  • Fuel System #1 Schematic (download)
    Applications:
    Street rodding/cruising with stock to mildly modified engines (low to moderate horsepower).
  • Fuel System #2 Schematic (download)
    Applications:
    • Street/strip competition with modified to high performance engines (moderate to high horsepower)
    • Street rodding/cruising with stock to mildly modified engines (low to moderate horsepower) !NOTE: This fuel system requires additional fuel fittings, not supplied in efi kit, that must be purchased separately.
  • Fuel System #3 Schematic (download)
    Applications:
    • All racing applications with high performance engines (very high horsepower)
    • Street/strip competition with modified to high performance engines (moderate to high horsepower)
    • Street rodding/cruising with stock to mildly modified engines (low to moderate horsepower) !NOTE: This fuel system requires additional fuel fittings, not supplied in efi kit, that must be purchased separately