« previous next »
Pages: [1]   Go Down

Author Topic: Power to electric fuel pump  (Read 6338 times)

0 Members and 2 Guests are viewing this topic.

Offline Darylle

  • Two Barrel
  • **
  • Posts: 37
  • I'm new here
  • Location: Wollongong
Power to electric fuel pump
« on: September 20, 2017, 08:40:44 AM »
Hi everyone
What is the best + source for an electric fuel pump, can I use the alt wire? 
Logged

Offline sirfixalot

  • Fuel Injected
  • *****
  • Posts: 701
  • Committee Member & Tech Adviser C3-C4
  • Location: Gods Country Sutherland S
Re: Power to electric fuel pump
« Reply #1 on: September 20, 2017, 09:11:26 AM »
Electric fuel pump feed has to be switched thru ignition should also cut off if engine stops ie in an accident usually uses a signal pulse from Tacho or an input from an oil pressure sensor on engine
Logged

Offline Vettech

  • Supercharged
  • ******
  • Posts: 1612
  • The rocket sled in Steel Blue.
  • Location: Cecil Hills. N S W.
  • Mood: Electrofied.
  • Car: C3 78 + C4 87 + C4 90
Re: Power to electric fuel pump
« Reply #2 on: September 20, 2017, 12:14:59 PM »
In C4's the +ve is supplied from ign switch in crank position only, when engine fires/runs the +ve is supplied from the "Oil Pressure switch". This ensures if oil pressure lost or engine stops, fuel is immediately stopped. As Sirfixalot says.
Logged
🖕 Vettech.
Pages: [1]   Go Up
« previous next »