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Location:
Adelaide
Registered:
May 2003
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Fuel Filters (High/Low Pressure)
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Wed, 25 August 2004 23:33
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Just finalising my fueling setup, and have a little question. Do i put the fuel filter in the low pressure section between tank and lift pump, or should i put it in the high pressure section between the surge tank and the VL-t pump.
I woudl be tending towards the low pressure section, mainly because it will somewhat protect the pump. That and i can use the standard low pressure carby style fittings for it, and the small white plastic filters. Then again, are these good enough for filtering?
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Location:
Melbourne
Registered:
January 2003
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Re: Fuel Filters (High/Low Pressure)
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Thu, 26 August 2004 00:09
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Between tank and pump ? is it lift pump in tanks ? or external ?
Most intank lift pump have a filter , so i guess its external lift pump , so do it the way those standard pumps would work stock :
1. intank outlet line { 6mm }
to
2. fuel filter { carby one is fine for flow i guess its 6mmline }
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3. surge tank
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4. VL pump { 8mm ? outlet or 10mm or some models }
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5. Efi fuel filter { 8mm line ? }
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6. Overpressured fuel rail {63psi to 73psi vl pressure}, stock pressure regulator { 35-38psi }
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7. Richly running motor at idle to 4000rpm
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8. To small return line back to surge tank { need to be the same size as stock vl }
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9. fuel tank
Well something like that !
Or make the system to the correct pressure returnless
Need to borrow a pipe bender ? Pressure gauge 4age fuel rail fitting for testing ?
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Location:
Brisbane
Registered:
May 2002
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Re: Fuel Filters (High/Low Pressure)
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Thu, 26 August 2004 04:31
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Yeah, a pre-pump low-pressure filter and a post-pump high-pressure filter is ideal. Not strictly necessary but cheap insurance; a small amount of crap in your fuel can kill the pump.
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