Crossflow facet fuel pump and fpr installation

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Gridgway
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Crossflow facet fuel pump and fpr installation

My crossflow engine builder says I need to use a Facet red top plus a Sytec pro FPR to provide enough fuel for the upgraded motor.

Does anyone have this or similar installation that I can use for inspiration please?  Where they are placed, the plumbing and the wiring.

Cheers

Graham

Tazio
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My facet is mounted on the rear panel behind the passenger quite low down, the pressure regulator is mounted under the bonnet on the chassis member directly above the gearbox.  The power is fed via an additional relay, I've chosen to control the relay via a dash mounted switch. As I was rebuilding the car I ran an earth from the chassis earth point through the tunnel onto a stud, basically so I had a good earth point for all of the rear electrics. 
 

Alan

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Jonathan Kay
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"The power is fed via an additional relay, I've chosen to control the relay via a dash mounted switch."

Why the additional switch, please? Something to do with track use or racing regulations?

Thanks

Jonathan

Tazio
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Jonathan,

I run my cars with no immobilisers or ignition keys, but I do put some discrete switches in to isolate some services just to make it a little bit more difficult for those tempted to take the cars.

 

Jonathan Kay
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Thanks

Jonathan

rkeywood
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My pump is below the boot floor on the passenger side just behind the suspension turret - I've popped and bonded a 4x3" stainless plate there to stop the flex in the ali. The Filter King is below the boot floor as well attached to an ali angle that's used to strengthen the rolled edge of the fixed section of the boot floor. Mine's not run via the ignition switch either but runs through an FIA isolator which adds an element of security (the ignition switch offers no security as you can just pull the connections off the back and hotwire in 10 secs.)

R

Gridgway
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Thanks both, very interesting.

One thing that strikes me is that I have the plastic fuel pipe from the tank to the fuel pump which is ok as it's not under pressure.  With a pump at the back to the regulator at the front, that is under pressure, so would need a different fuel pipe.

Is that correct logic?

OldAndrewE
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Possibly!  I have no idea what the pressure rating of the plastic pipe is.  Is it the original pipe?  May be worth replacing anyway considering potential problems with E10 fuel.  Presumably you are replacing an original mechanical pump

Andrew

1985 S3 1700 XFlow.  Undergoing full restoration

Gridgway
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Yes the mechanical pump will be blanked off (or otherwise not used).

The plastic pipe is connected to the tank at one end and the mechanical pump at the other end by rubber pipe and jubilee clips.  Being plastic, the clips can't be done up very tight as they would be onto metal fittings.  But the negative pressure to suck the petrol through will be a much lower magnitude than the positive pressure the facet will produce (6 ish psi).  So I anticipate leakage - which I generally don't enjoy and when particularly when it's petrol!