Recommendations on external EFI fuel pump?

DaveEFI · Post by **DaveEFI** » Sat Feb 08, 2014 1:34 pm

How does the SD1 Vitesse do it? The tank on that is wide and flat, as it were.
Designed before injection. Although the EFI tank is different to the carb one.

stevieturbo · Post by **stevieturbo** » Sat Feb 08, 2014 1:40 pm

Richard P6 wrote:Thanks Stevie

I was more concerned with it's cornering ability.

The lower 4" or so of the P6 tank is the reserve bit. If I were to fit the pump into the top of the tank and allow the actual 'pick up' to sit in the bottom of it, then it would always be sitting in 4" of petrol. As long as you take notice of the fuel gauge and don't let yourself run too low, that is.

Even driving as fast as possible around a roundabout shouldn't swoosh it enough to the left to allow it to uncover the pump intake.

Any thoughts?

P6s don't corner that well btw

Whilst it may work. You're still asking the pump to suck. So it's less then ideal, but probably ok once it has primed.

The problem is that even if the sloshes away for a split second, you will feel it immediately at the engine. But if it doesnt cost anything or little to try, give it a whirl. If when driving you never experience any problems and the pump sounds healthy, then it's all good.

Or if you could adapt the top of the tank to take a hanger and intank pump from another vehicle, that would be an option too.

Richard P6 · Post by **Richard P6** » Tue Feb 11, 2014 9:29 am

The pump is one of these

http://www.ebay.co.uk/itm/RANGE-ROVER-C ... 3f291a3d16

I'll give it a go, and just won't let it drain lower than the reserve tank.

Richard

stevieturbo · Post by **stevieturbo** » Tue Feb 11, 2014 11:44 am

Richard P6 wrote:The pump is one of these

http://www.ebay.co.uk/itm/RANGE-ROVER-C ... 3f291a3d16

I'll give it a go, and just won't let it drain lower than the reserve tank.

Richard

That is an in-tank pump.

As I say, if you can modify the top of the tank to accept that as a drop in unit, it might work for you.

You cannot mount that pump externally.

Richard P6 · Post by **Richard P6** » Tue Feb 11, 2014 3:31 pm

I said it was an in tank pump earlier.

I was told that it was adjustable in length, and that you could mount it in the top of the tank and let the intake sit close to the bottom, lengthening it if required.

So, cut a hole in the top of the tank, centrally, then fit this 'in tank' pump and allow the pick up bit at the bottom to sit in the reserve section i.e. the lower 4" or so of the tank. If you do not run out of petrol (in the main tank) there will always be 4" of petrol in the lower section, which will surely act as a swirl tank and therefore not take up too much room in the boot/engine bay.

stevieturbo · Post by **stevieturbo** » Tue Feb 11, 2014 11:22 pm

Richard P6 wrote:I said it was an in tank pump earlier.

I was told that it was adjustable in length, and that you could mount it in the top of the tank and let the intake sit close to the bottom, lengthening it if required.

So, cut a hole in the top of the tank, centrally, then fit this 'in tank' pump and allow the pick up bit at the bottom to sit in the reserve section i.e. the lower 4" or so of the tank. If you do not run out of petrol (in the main tank) there will always be 4" of petrol in the lower section, which will surely act as a swirl tank and therefore not take up too much room in the boot/engine bay.

Obviously you will need a suitable mounting flange and gasket on top of the tank to bolt this to, to ensure it is secure and will not leak.

It may be "adjustable" for height....whether that means it needs modified or not is another matter. And you will need to source suitable submersible fuel line to attach to it as well.

But given those concerns, yes it would be a viable option provided you can ensure a reservoir of fuel around the pump at all times.