Have seen different options for replacing my AIRTEX 8012S 5.5 to 9psi electric fuel pump for my 1972 240z. I am narrowing my decisión to the following:


Facet Electric Fuel Pump


1x Facet 476087 Silver Top Cylindrical Fuel Pump (STS504) (Facet STS504) from Green Spark Plug


or


Carter Electric Fuel Pump - In-Line Part Number: 8566-03413007


79 1979 Mazda RX7 Fuel Pump - Fuel Delivery - AC Delco, Airtex, Autobest, Carter, Delphi, Mr Gasket, Precise, In-Line - PartsGeek


I need a pump that dials between 3.5 to 4 psi!! No more than this. It needs some power but not over 4 psi and that does not require a regulator.


If there is any other better recommendations than any of these let me know also.

 

Maybe you should be on a 240z forum? Just thinking, unless you have a rotary swap in it that is.

 

Ditto

But always run a regulator. Return is best, but dead head is fine. The "self regulated" pumps never truly regulate properly. If nothing else a regulator will lengthen the life of the pump.

 

The stock S2 RX-7 fuel pump is adequate for a 13B rotary with dual SU carbs. The carbs I used are late-1980's vintage HIF-6, with fuel return line. The 240z carbs are an older design and smaller.

 

Do you have any pictures of that intake manifold?

I almost bought a twin SU intake set up a couple of years ago, but it turned out to be a scam...

And that Carter pump would be perfect. Its a little noisy though.

I like the weber redline series 8mm inlet and outlet pump too...

 

Here are a couple photos with the engine out.