electric fuel pumps
Submitted: Sunday, May 02, 2004 at 12:24
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colin
hi folks, has any one put an electric
fuel pump on a diesal vehicle as close as possible to the
fuel tank. Have been told by a diesal mechanic it will give better
fuel economy as
well as more responsive power, his point is the
fuel line and filter are pressurised, which is the same system the v8 super cars run but will it work for diesals. regards col
Reply By: ross - Sunday, May 02, 2004 at 14:24
Sunday, May 02, 2004 at 14:24
I dont believe so.The pressure inside the injectors is usually between 11000-20000 psi so I cant see the how a few extra pounds of pressure in the
fuel line will help.
AnswerID:
56913
Reply By: ross - Sunday, May 02, 2004 at 14:26
Sunday, May 02, 2004 at 14:26
I dont believe so.The pressure inside the injectors is usually between 11000-20000 psi so I cant see the how a few extra pounds of pressure in the
fuel line will help.
AnswerID:
56914
Reply By: ross - Sunday, May 02, 2004 at 14:26
Sunday, May 02, 2004 at 14:26
I dont believe so.The pressure inside the injectors is usually between 11000-20000 psi so I cant see the how a few extra pounds of pressure in the
fuel line will help.
AnswerID:
56915
Reply By: ross - Sunday, May 02, 2004 at 14:26
Sunday, May 02, 2004 at 14:26
I dont believe so.The pressure inside the injectors is usually between 11000-20000 psi so I cant see the how a few extra pounds of pressure in the
fuel line will help.
AnswerID:
56916
Follow Up By: Member -Bob & Lex (Sydney) - Sunday, May 02, 2004 at 17:23
Sunday, May 02, 2004 at 17:23
bit of truoble there
ross
FollowupID:
318713
Reply By: Member - Bradley- Monday, May 03, 2004 at 10:31
Monday, May 03, 2004 at 10:31
You want to run it as a 'lift pump' ? Then yes it will help as it
places a small head of pressure onto the main pump, and reduces cavitation and starvation on the main pump and increases the efficiency of the main pump. Will it give a remarkable increase in power etc. can't say, but it can't hurt. Low pressure external
fuel pumps aren't too expensive so it is a cheap experiment.
A lot of hydraulic systems ( oil /
fuel /
water etc) run multiple staged pumps, on the aircraft we even had pressurised storage tanks . Most race cars run lift pumps from the
fuel cell to a surge
tank, then through multiple pressure pumps to the
fuel circuit.
AnswerID:
56999
Reply By: Martyn (WA) - Monday, May 03, 2004 at 21:40
Monday, May 03, 2004 at 21:40
Colin,
I have an electric pump on my Rangie, this is more about info for finding a
fuel pump rather than the improvements you encounter. If you are looking for a pump Rangie parts suppliers sell them as a replacement for the super reliable diaphragm pump they had installed as original.
Things I would watch for is what you are pressurising after the
fuel pump like the
fuel filter and the
fuel lines from the pump to the filter, they might leak with slight pressure. My GQ had an extra filter on it with a glass bowl
water knock out, I don't think this would of taken the pressure.
When you go out in the bush it's also something else that could fail, your normal diesel pump won't be able to suck the
fuel through one of these pumps if it breaks so you could end up in a worse situation. My thoughts.
AnswerID:
57094
Reply By: Flash - Friday, May 07, 2004 at 19:10
Friday, May 07, 2004 at 19:10
A low pressure
fuel pump makes it a cinch to bleed the system if you ever run it dry or change your filter etc.
Probably not a bad idea at all.
AnswerID:
57657