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Correct Electronic Fuel Pump Selection


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#1 JonnyAlpha

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Posted 14 January 2020 - 06:35 PM

Hi;

 

I am planning on fitting an Electronic Fuel Pump as part of an engine transplant (HLE 1000 998 - 1310).

The engine is a 1310 with an AC RS Cam, Re-Curved Ignition, Stage 2 Metro Large Valve Head, Stage One Kit.

 

I have been advised to get a Facet SS501 Fuel Pump but there are different types and want to get the correct one. 

I have seen three types listed as "Road, Fast Road, Race" and also sizes 2.0 - 4.5 and 3.0 - 4.5.

 

I have also seen there are SS500 / 40104

 

This one and this one for instance.

 

It would also appear that I would need some threaded fuel pipe fittings - what do I need.

 

Also advised to fit an inline filter (unless I already have one, any recommendations?

 

Looking for advice on the above to ensure good but too much fuel flow.

 

Many thanks



#2 cal844

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Posted 14 January 2020 - 06:56 PM

I use a Facet Cube pump set to give 3.0 psi at the carb float chamber valve.


Any more than 3 psi will give issues

Edited by cal844, 14 January 2020 - 06:57 PM.


#3 JonnyAlpha

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Posted 14 January 2020 - 07:43 PM

I use a Facet Cube pump set to give 3.0 psi at the carb float chamber valve.


Any more than 3 psi will give issues

 

So the settings available e.g. 2.0 - 4.5 can be set? If so which pump do I get?



#4 GraemeC

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Posted 14 January 2020 - 07:45 PM

There is only one spec of SS501 which is road spec.  SS502 is fast road, SS503 is race. Each one has increases the pressure and flow.

The pressure delivered from SS501 is fine for SUs without a regulator, the others will need pressure regulator.

However whether the flow from SS501 is sufficient for your engine spec is another matter, but I’d suspect it is.

 

if you buy the pump as the kit with mounting bobbins and unions it will also include a pre-filter. The unions needed would be 6mm hose.



#5 JonnyAlpha

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Posted 15 January 2020 - 07:19 AM

Graeme, thanks for the Update and explanation. Yes I found an SS501 in kit form with connectors.
Also looks like it needs to be installed in the boot as opposed to the engine bay?

#6 nicklouse

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Posted 15 January 2020 - 07:28 AM

Correct. They are push pumps not pull.

#7 JonnyAlpha

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Posted 15 January 2020 - 04:53 PM

There is only one spec of SS501 which is road spec.  SS502 is fast road, SS503 is race. Each one has increases the pressure and flow.

The pressure delivered from SS501 is fine for SUs without a regulator, the others will need pressure regulator.

However whether the flow from SS501 is sufficient for your engine spec is another matter, but I’d suspect it is.

 

if you buy the pump as the kit with mounting bobbins and unions it will also include a pre-filter. The unions needed would be 6mm hose.

 

Found this kit sold on eBay by JJC Race and Rally? 

It says it's an SS501 for a Road car and comes with mountings and unions but does not say what size they are?

 

Any recommendations on where to get one from and what in line filter?



#8 JonnyAlpha

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Posted 15 January 2020 - 07:20 PM

Hust found the Facet Pumps on Mini Spares and MED Engineering, but they only do the 4.0 - 5.0 and 4.5 - 7 PSI respectively. 



#9 nicklouse

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Posted 15 January 2020 - 07:51 PM

 

There is only one spec of SS501 which is road spec.  SS502 is fast road, SS503 is race. Each one has increases the pressure and flow.

The pressure delivered from SS501 is fine for SUs without a regulator, the others will need pressure regulator.

However whether the flow from SS501 is sufficient for your engine spec is another matter, but I’d suspect it is.

 

if you buy the pump as the kit with mounting bobbins and unions it will also include a pre-filter. The unions needed would be 6mm hose.

 

Found this kit sold on eBay by JJC Race and Rally? 

It says it's an SS501 for a Road car and comes with mountings and unions but does not say what size they are?

 

Any recommendations on where to get one from and what in line filter?

 

it comes with one.



#10 gazza82

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Posted 15 January 2020 - 09:49 PM


There is only one spec of SS501 which is road spec. SS502 is fast road, SS503 is race. Each one has increases the pressure and flow.
The pressure delivered from SS501 is fine for SUs without a regulator, the others will need pressure regulator.
However whether the flow from SS501 is sufficient for your engine spec is another matter, but I’d suspect it is.

if you buy the pump as the kit with mounting bobbins and unions it will also include a pre-filter. The unions needed would be 6mm hose.


Found this kit sold on eBay by JJC Race and Rally?
It says it's an SS501 for a Road car and comes with mountings and unions but does not say what size they are?

Any recommendations on where to get one from and what in line filter?

JJC Rally is another name for Demon Tweeks ... same address ...

#11 GraemeC

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Posted 15 January 2020 - 10:07 PM

http://www.minispare...|Back to search

1/4” hose is the same as 6mm



#12 JonnyAlpha

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Posted 16 January 2020 - 12:45 PM

OK this (like most things) is becoming a complicated subject :-)

 

I have spent the past two hours scouring the web trying to find what fuel pressure to use with a HIF44 carb on my intended engine setup, I have found varying answers so back on her to try and get clarity.

As a starting point, I need to ascertain is what PSI the HIF44 is designed to run at. Nothing on the SU page but in other places  

 

Info from Demon Tweeks state:  

SS501 40105 Road 3 - 4.5 PSI 

SS502 40106 Fast Road 4 - 7 PSI

 

But on the Mini Spares site the SS501 is quoted as producing 2.5 - 3.0 PSI

 

The Demon Tweeks kits come with 8mm bore pipes - but the Mini spares link to 1/4" (6mm) ones.  

 

Med Engineering only do the 40106 and quote 4.5 - 7PSI

 

Facet themselves state that the 40104 (SS500) runs at 1.5 - 4.0 PSI 

 

 

I use a Facet Cube pump set to give 3.0 psi at the carb float chamber valve.


Any more than 3 psi will give issues

 

 

@cal844 - Do you use a fuel pressure regulator - if so which one?



#13 GraemeC

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Posted 16 January 2020 - 02:00 PM

I don’t use a regulator on the SS501 in my Autotest car and have no issues with the float bowl overfilling due to fuel pressure overcoming the needle valve

#14 Mini Manannán

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Posted 16 January 2020 - 02:04 PM

Are you sure want a Facet?  They are mighty noisy.



#15 cal844

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Posted 16 January 2020 - 03:02 PM

Are you sure want a Facet? They are mighty noisy.


They make quiet pumps, I did run a fuel pressure regulator to begin with but it started to leak so I removed it




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