26 replies to this topic

[E-Tizzle]

i know im being a bit think.
but.
i still dont see what the point of this pump is.
why go to all that trouble of mounting it under the car and adding stuff on and spending money when the car already has a fuel pump?

[dklawson]

i still dont see what the point of this pump is.
why go to all that trouble of mounting it under the car and adding stuff on and spending money when the car already has a fuel pump?

Not all the cars have a mechanical pump on the engine. Consider my car. It's a '64 Cooper-S which originally came with an SU pump mounted on the rear subframe right where the earlier pictures in this thread show the Facet brand pumps mounted. The Facet pump is a good replacement for the SU as it only costs about 1/2 the price of a new SU electric pump.

As for the pressure ratings and Facet pump types, there are cylindrical metal "silver top" Facets, metal "brick" Facets, and the plastic bodied types (the last two types were shown in photographs on page 1 of this thread). NOT ALL of them require a pressure regulator. Facet makes those pump styles in several different pressure ranges. Each one is available in a pump that operates somewhere between 1.5 and 4 PSI. 4 PSI is a tiny bit high for SU carbs but every Facet pump I've checked is in the middle of that range, normally right at 3 PSI or slightly below.

One advantage to mounting the electric pump at the back, under the tank (as opposed to in the engine compartment) is that Facet pumps work much better as "pushers" than "pullers". It's better if the pump is gravity fed by the tank and mounted in a cool location. Mounting the pump in the engine compartment is possible but it may require the pump to work harder and it subjects the pump to heat.

While I have been happy with Facet pumps, I had two die on me this year. However, both provided years of service. One was installed 17 years ago and the other was at least 10 years old.

[ukcooper]

Question , what rated blade fuse would you use??..


If fitting an electric pump of any kind make sure you install a inpact cut off switch, in case of a smash it cut the petrol off if you can not??.

There a lot of rover 200 400 600 ect with efi systems fitted.

Edited by ukcooper, 16 June 2010 - 05:01 PM.

[Stevie W]

That's a good idea, just when they think they've got away with your Mini!!!!!

I keep forgeting to switch it on. which is a bit embarasing sometimes.

Oh dear!! thats the sort of thing I would do as well, then strip everything down to find out whats wrong!!!

[stevede]

Mines at the back on the subframe similar to others



I too have fitted an inertia switch just to be safe.



Regards

Steve

[woodsy483]

Mines at the back on the subframe similar to others



I too have fitted an inertia switch just to be safe.



Regards

Steve

Does anyone have any wiring diagrams for fitting an inertia switch and a facet pump, I thought it would be straight forward to wire in but after seeing the above post with the inertia switch and several wires and crimps I'm wondering am I missing something.

[SolarB]

I'm not quite sure what's going on there with three fuses and three relays, I guess it's not just the fuel pump wiring we cab see in the photograph.

If the inertia switch can handle the current drawn by the fuel pump it can be wired in series with the pump on the supply side (i.e. take the power through the switch like you would a fuse).
If the pump requires more amps than the switch can comfortably take then the switch needs to hold closed a normally open relay, and the relay obviously needs to be chosen to be suitable for the application.

Either set up requires a single fuse, but there's no more to it than that for a simple installation.

[woodsy483]

I've found a link, this maybe of use to others


http://www.turbospor...p...&viewfull=1

[firefox]

need photo

[Jordan18]

I'm looking to fit an electric fuel pump to mine, would this kit: http://www.ebay.co.u...=STRK:MEBIDX:IT

 

i was walking around mini action day the other weekend and i saw that there were a lot of people running the fuel pump and filter in the boot on the back seat. 

 

cheers

 

[nicklouse]

Filter/regulator should be as close to the carb as posible.

Overkill for most minis.

Yours who knows?

[Cooperman]

That kit is 'overkill' for the classic Mini. All you need is the road pump. Even my 'S' rally car which does about 12 mpg when being seriously used only needs one road pump, although I have a spare piped and wired in for reliability.
I always mount the pump inside the sub-frame bolted to the underside of the rear seat base panel. The pressure regulator is just before the carbs. The Facet pumps have filters attached to them.
Personally I don't like pumps inside the boot with up to 11 gallons of petrol and the battery.