Hiflow diesel
Submitted: Sunday, Jan 09, 2022 at 14:16
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Peter 1953
I have an RG Colorado cab/chassis tray back.
The OE fuel filler neck will not accept a high flow bowser nozzle as it'stoo small in dia.
I know some makes do, can anyone tell me if they've found and used a larger diameter filler neck, what vehicle it came from and if there were dramas adapting hose sizes to the fuel tank neck please.
Thanks
Reply By: RMD - Sunday, Jan 09, 2022 at 16:38
Sunday, Jan 09, 2022 at 16:38
Peter.
All very nice to refuel race car fast, but the size of the entry tube into the tank dictates the actual flow rate AND if the breather system cannot exhale fast enough through it's small size venting, the fuel will constipate in
the neck and blow back or shut off nozzle anyway. Maybe look at the related components/ possibilities before you spend money on a mod which might work or may not. To fill faster you might need a vacuum source sucking the air out of the tank, all for a couple of minutes saved! To Blat the fuel in might take a few mods , not just one. It possibly isn't just a matter of changing the nozzle receival size!
Design and bean counting often means sufficient to fill ok but maybe not fast.
Hi Flow for truck tanks with 3" hole to squirt through is normal, Even in large tubes to 1000L tank in a bus/coaches the fast flow can be too much because of length and venting speed. Truck wash removes the blowback from clothes!
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Reply By: Member - McLaren3030 - Monday, Jan 10, 2022 at 08:37
Monday, Jan 10, 2022 at 08:37
Hi Guys,
Something to consider when using “Hi Flow” pumps is that because of the high flow rate, there is a higher “foaming” rate also. Even when using “Premium/Special” Diesel containing an anti foaming agent, the fuel will still foam up to a certain extent. The higher the flow, the greater the foaming. So whilst you may save some time using a hi flow pump, if you truely want a “full” tank, you then need to “trickle” fill at the end to get the last 4 or 5 litres into the tank. So, how much time have you really saved?
In my case, 275 Litres (long range plus standard tank), it will take around 9 minutes to “fill” my tank, even using the high flow pump.
Macca.
AnswerID:
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