Zac, The newer types of Gas controllers do have electronic controllers for ign on, runs for ~5 seconds - the 70/80's gas stuff we used just detected stall which was all that was required by CAMS back then.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Zac Campbell Sent: Thursday, 27 January 2005 5:59 PM To: [email protected] Subject: Re: automatically switch off electric fuel pump when engine not running I must add, point (#2) about it running continuously after switching to ign on is not true. I've used one of these things and another on a mate's efi car (old analog efi) and they didn't run continuously. Rob P wrote: > Hi Jeff, > here's some info from Terry that provides a good option. I dug this > one > out of my old Ozdat archives. > I don't know if the diagram will be visible to you, nor the Holley > website address. > > Cheers, > Rob P > > > > > > *-----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Kristian Walsham > Sent: Sunday, 16 March 2003 6:19 PM > To: [email protected] > Subject: fuel pump supply > > * > *Hi All,* > * I have an Bosch alternator off a Bluebird in my 1600 and was > wondering if the "black plastic" terminal marked "+" is/can be used to > supply an electric fuel pump also from a Bluebird and what size fuse > should i use? > [Terry Rudd] Yes it can be used to power a relay, as it's the same wire > that connects onto the main battery lug on the starter motor, also it > branches off in the loom to the fuse box (big wire with connector in > front of the fuse box.) I don't use a Bluey pump any more as I found > them a tad unreliable for race conditions but I would think a 10 or 15 > amp fuse on the battery feed to the relay suits most LP pumps. I use a > Denso LP pump of a Mazda RX7 EFI and it draws around 5 amps, I imagine a > Bluey pump is rated similarly. If you mount the pump behind the stock > battery position The closest ignition sense source is found at position > 4 (white/blue wire) on the old 6 pin Hitachi external voltage regulator > plug that was disconnected to get the Bosch alternator running.* > > *Fuel Pump.* > > *Wire the relay thus:* > *Pin 30 - fused power from battery supply (4 mm)* > *Pin 85 - Earth (2 mm)* > *Pin 86 - Ignition (2 mm)* > *Pin 87 - Pump (+) (4 mm shielded)* > *Pump (-ve) to Earth (2 mm)* > > ** By shielded I mean run it inside that black stuff that's used on > modern day cars that protects wires from insulation damage especially if > the pump is located in or around the boot for EFI applications i.e. > surge tank feed. > > [Terry Rudd] * > *You can control the relay on/off operation a number of ways.* *1. > Electronic device that senses the coil is pulsing i.e. engine running > etc and controls sense (ignition) and/or earth function to the relay. > Will control relay after Ign ON but you don't start as well as > stall.* > > *2. Gas switch which does the same thing but usually has no control > over > timings etc i.e. they turn the pump off 2 seconds after stall is > detected but will run continuously after Ign ON before start.* > > *3. Oil pressure switch (Holley) Here's a diagram off the Holley web > site - pretty nifty and been used on many an EFI conversion as it's a > mandatory safety item in some places and there wasn't many alternative > around 10 years ago. I've fitted a few of these on a 1600 and they work > well, no timings like the electronic types around now and these could be > more expensive as they're made in the USA. They also need a 1/8" BSP > (British Standard Pipe) adapter for L and from memory FJ series.* > > *Oil Pressure Safety Switch > It's always a good idea to place a safety switch in the circuit when > installing an electric fuel pump. Holley has one available under P/N > 12-810. This switch will ensure that the electric pump will not work > unless the engine has oil pressure. It will prevent the pump from > running in a situation where the motor may stall with the ignition ON. > Wiring the switch through the starter solenoid circuit energizes the > pump on engine start-up. After the engine is running the switch > continues to provide power to the pump as long as there is oil pressure > to keep the switch turned on. > > > * > > *Does this terminal only supply power when the car is running or is it > live all the time? I don`t have a tester to tell. > [Terry Rudd] It's live all the time as it's connected to the positive > battery lead at the starter motor. * > > *Also does this pump flow more than the mechanical type? [Terry Rudd] > Electric pumps usually have significantly more flow but lower pressure > than L series mechanical pumps - they suit webers to a tee. They need > to be insulated well from the body mountings as they tend to be > noisy.* > > > *Thanks,* > > * Kris.* > > ----- Original Message ----- > *From:* Jeff <mailto:[EMAIL PROTECTED]> > *To:* [EMAIL PROTECTED] Com. Au > <mailto:[EMAIL PROTECTED] Com. Au> > *Sent:* Tuesday, January 25, 2005 10:00 AM > *Subject:* automatically switch off electric fuel pump when engine > not running > > CAMS is bringing in a rule this year where all cars running a fuel > pump have to have a system where the fuel pump stops pumping fuel > when the engine is not running. I think the test will basicly be > you stick the car in first, let the clutch out with you foot on the > brake so that the engine stalls. The fuel must stop pumping within > a short time ie 30 seconds. > > Anyone got any ideas for a simple way to do this on a carburetted > engine ? > (i think most fuel injection systems have this built in ?) > > ta jeff > > --membersozdat------------------------------------------------------- > OZDAT Mailing List Please Note:- > Send (un)subscribe requests to [EMAIL PROTECTED] > Send submissions to [email protected] > No unauthorised redistribution of this email > http://www.ozdat.com/ozdatonline/index.htm > http://www.ozdat.com/ozdatonline/listindex.html > http://www.mail-archive.com/[email protected]/ > > --------------------------------------------------------------------- > > > --membersozdat------------------------------------------------------- > OZDAT Mailing List Please Note:- > Send (un)subscribe requests to [EMAIL PROTECTED] Send > submissions to [email protected] No unauthorised > redistribution of this email > http://www.ozdat.com/ozdatonline/index.htm > http://www.ozdat.com/ozdatonline/listindex.html > http://www.mail-archive.com/[email protected]/ > --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [email protected] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [email protected] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
