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Old 23-10-07, 10:30   #1
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Bosch 023 Fuel Pump

Hey guys just wondering would a Bosch 023 fuel pump fit a holden VL calais?
Its basically the same size as the 044 however just has a higher flowing capacity?
cheers
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Old 23-10-07, 18:03   #2
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It's identical size, but it is listed as "open base". I'm assuming it's for intank use only. No good in a VL.

The 044 has a higher flow rate compared to the 023....200l/hr v's 168l/hr for the 023 (at 5 bar)
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Old 23-10-07, 23:03   #3
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Fair enough. So its not going to fit? anyways around it?
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Old 24-10-07, 14:00   #4
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Some people have got rid of the low pressure riser pump and put the high
pressure pump straight in the tank, I dont like that. If you were doing a
custom and those were the only pumps you had then sure you can engineer it
in place but a lot of messing around when you can just get the right pumps.

Besides some people want to run surge tanks, best to do that between low
pressure riser and high pressure pump for safety sake, ie If you were running
15 psi boost you have 35 psi injector pressure plus atmosphere of 14.7 plus
boost of 15 psi plus losses in pipe from pump to regulator which could
mean your surge tank can be as high as 65psi if it was run at outlet of
high pressure pump. But if between low pressure and high pressure then its
only going to be around to 10 to 12psi range more or less.
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Old 24-10-07, 22:12   #5
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Thanks for the great info Niche. Do you know what the largest pump is that fits into a vl turbo? ( i am after a internal pump)
Something that can handle a fair bit of power.
Because further down the track i will be rebuilding the engine and bigger turbo etc hence chasing more power.
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Old 24-10-07, 22:25   #6
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Provided the intank and external are in good condition they will comfortably
handle 250Kw engine power and maybe a bit more but by then its safer
to get (maybe) an 044 (I think) but others will likely have more info,

edit:
Search button with couple of specific strings should help
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Old 25-10-07, 18:32   #7
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Mate, don't run a high pressure intank pump. The VL tank was not designed for it, and i guarantee you'll run into fuel pickup issues on a low (less than 1/4) tank.

AC Delco sold a 5lt/min lift pump (internal) for around $100. Part no. 11004. Match that with a surge tank and 044 (4lt/min) and you'll be set.
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Old 25-10-07, 23:16   #8
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Cheers for the info MonstaS4. I will keep that all in mind
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