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Location:
Rosanna, Melb
Registered:
June 2002
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Fuel lines
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Sun, 27 July 2003 14:50
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I am EFIing an oz-spec Sprinter. Got a holley blue lifting into the surge tank and a Bosch high pressure pump pulling out of that. Can I use normal carby fuel lines for tank-Holley Holley-surge and surge-Bosch? Then efi lines for the Bosch to the fuel rail and back?
Also, I plan to use the stock 6mm ID fuel pipes, will these be too restrictive for a (hopeful) 140-150kw at the fly?
Hen
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Location:
Brisbane
Registered:
May 2002
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Re: Fuel lines
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Sun, 27 July 2003 23:30
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You only need high-pressure EFI hose for the high-pressure parts of the system, ie between the Bosch pump and the fuel rail. The rest can be ordinary low-pressure stuff. 6mm will be more than enough for what you're doing.
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Location:
Gold Coast
Registered:
January 2003
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Re: Fuel lines
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Mon, 28 July 2003 02:49
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Why did you use the holley blue?
You can buy lift pumps that are vertually fail proof for less than half the price of a holley and will still flow ample fuel.
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Location:
adelaide
Registered:
April 2003
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Re: Fuel lines
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Mon, 28 July 2003 03:02
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im going to get asked a similar question when people see in my boot, i have a pretty 'sik' carter pre pump that flows way more than i need
the reason i have it is because i got a very good deal on the pre pump/main pump/surge tank as a package so i will just use it.
anyway back on topic, are EFI fuel lines that much more expensive than the stock ones? i would have thought you would pull out the entire fuel system except the fuel tank and replace it with higher pressure lines?
ab
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Location:
Gold Coast
Registered:
January 2003
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Re: Fuel lines
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Mon, 28 July 2003 03:05
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EFI fuel hose is alot more than standard carb fuel hose.
You will pay around $20 for efi and around $5 for ordinard fuel hose.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Fuel lines
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Mon, 28 July 2003 04:02
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hmm, so what about the metal lines.
Norbie, you say 6mm will be fine for that kind of power?
what sort of metal tubing can be used (legally or not) for fuel tubing. afaik copper is out as the RTA thinks that it will work harden and crack with car vibrations. is aluminium ok? or will it have to be seamless steel bundy tube?
are the high pressure fittings usually threaded or banjo fittings? or can good quality hose clamps be used. fuel pressure will be about 300kpa max.
Cya, Stewart
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Location:
Brisbane
Registered:
May 2002
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Re: Fuel lines
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Mon, 28 July 2003 04:18
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AFAIK steel tube is the only way to go for fuel lines. High pressure fittings are usually threaded or banjo, however you can get away with a flared pipe and good hose clamps. We're not talking really high pressures here; stock fuel pressure is less than 40psi on most cars, which is nothing really.
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Location:
Rosanna, Melb
Registered:
June 2002
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Re: Fuel lines
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Mon, 28 July 2003 11:16
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I'm using a Holley blue because it turned up conveniently and wasn't expensive. The entire fuel system has been replaced bar the tank and metal tubing. Hopefully should do the trick.
Hen
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Location:
Newcastle
Registered:
May 2002
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Re: Fuel lines
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Mon, 28 July 2003 12:15
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You can get high pressure efi hose from edgeworth auto parts for $10/meter but it's red. Thats the cheapest I've found.
I'm nearly certain the fuel lines in my KE20 are aluminium. I bought some steel pipe to make new ones and found it was about four times the weight , and smaller ID anyway! Some new cars have plastic (probably some kind of ABS type) fuel lines. The other thing to do is go to a wrecker and get fuel lines from an XF or something big like that, and re-bend it to suit.
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