11 replies to this topic

[blackhallr]

hi all,i am fitting a 1380 mg metro engine and have no knowlage of fuel pumps other than mechanical can you enlighten me as to the differenc between a solid state and the red top type of facet pumps and what would be recomended for my engine,i am fitting a hif44 carb and will only be using as fast road just needed the extra umph,regards john.

[dklawson]

Any of the Facet pumps will deliver enough fuel for your engine. The standard mechanical pump would be fine also.

The fuel pump only needs to move fuel to the float bowl, gravity and engine vacuum take over from there. The pump does not force fuel into the main jet of the carb.

What you need to pay attention to with any aftermarket pump is the delivery pressure. SUs do NOT like high input pressure from the pump. Ideally, the pump pressure would be between 2-3 PSI. You can go a little bit above that, but once you exceed 4 PSI you need to consider adding an inline fuel pressure regulator (after the pump and before the carbs). Do NOT use the cylindrical, chrome plated, cheap regulators.
(Do not use this type: http://ecx.images-am...L500_AA300_.jpg )
Only use a quality regulator that can hold its setpoint.

The Facet "red top" pumps have a built in filter that can be replaced and they are quieter than the "cube" or "brick" pumps that cost less. However, apart from the noise and price, you are not likely to note any performance differences between the two.

[blackhallr]

Any of the Facet pumps will deliver enough fuel for your engine. The standard mechanical pump would be fine also.

The fuel pump only needs to move fuel to the float bowl, gravity and engine vacuum take over from there. The pump does not force fuel into the main jet of the carb.

What you need to pay attention to with any aftermarket pump is the delivery pressure. SUs do NOT like high input pressure from the pump. Ideally, the pump pressure would be between 2-3 PSI. You can go a little bit above that, but once you exceed 4 PSI you need to consider adding an inline fuel pressure regulator (after the pump and before the carbs). Do NOT use the cylindrical, chrome plated, cheap regulators.
(Do not use this type: http://ecx.images-am...L500_AA300_.jpg )
Only use a quality regulator that can hold its setpoint.

The Facet "red top" pumps have a built in filter that can be replaced and they are quieter than the "cube" or "brick" pumps that cost less. However, apart from the noise and price, you are not likely to note any performance differences between the two.

hi doug l,thanks for your info,didnt think i was getting any feed back as i noticed a similar thread after posting mine only he is running turbo,regards john.

[mk1leg]

Hi..I fitted a facet to my mini 1380...............



anf fitted it to rear subframe......



....................

[Cooperman]

Hi..I fitted a facet to my mini 1380...............



anf fitted it to rear subframe......



....................

That's a nice neat installation.

[blackhallr]

hi,will try and copy yours can you tell me what filter you use and is it as noisy as some say,regards john.

[mk1leg]

hi,will try and copy yours can you tell me what filter you use and is it as noisy as some say,regards john.

yes they are noisy even rubber bushed to subframe......... as for the filter its a pre pump gless filter wich you can open and clean.......... http://minispares.co...ty=pb&pid=37901

[blackhallr]

hi,will try and copy yours can you tell me what filter you use and is it as noisy as some say,regards john.

yes they are noisy even rubber bushed to subframe......... as for the filter its a pre pump gless filter wich you can open and clean.......... http://minispares.co...ty=pb&pid=37901

hi all,thanks for your imput,regards john

[blackhallr]

hi,will try and copy yours can you tell me what filter you use and is it as noisy as some say,regards john.

yes they are noisy even rubber bushed to subframe......... as for the filter its a pre pump gless filter wich you can open and clean.......... http://minispares.co...ty=pb&pid=37901

hi all,thanks for your imput,regards john

hi all,just looking at pics again to make bracket andnoticed the wireing looks prety heavy what type and how to wire in as old pump was mechanical,regards john.

[mk1leg]

Hi..the red wire in the pic is the earth... I took a power supply from the ign on side of fuse box and took this to a seperate switch then from sw to pump this ( I did when the shell was completly stripped so access was easy) up the A-pillar along the top inner roof strengthiner down the C-pillar and out the tank breather holt in boot floor.............good luck......

[dklawson]

Mk1leg, regarding color codes... is your car positive earth?

[blackhallr]

Mk1leg, regarding color codes... is your car positive earth?

hi all,1972 so negative earth,regards john.