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CC Advertisers
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05-31-2006, 06:51 AM
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CC Member
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Join Date: Apr 2006
Location: Mildura,
vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,349
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Not Ranked
LS1 fuel systems
I have been nutting out my fuel system and have come up blank on one point.
I didn't remove the entire fuel system from the donor car and to me I am missing something.
I intend on using a stock fuel system to begin with and since the LS1 has no stock fuel return there must be a fuel bleed back to the tank futher back on stock cars.
Has anyone got the part number, or a photo, or even just confirmation of what I am talking about? 
Cheers
Gav |
05-31-2006, 07:08 AM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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Not Ranked
Hi Gav,
If you look at the stock pump setup there is a return circuit.
There are 3 fittings on the top. One is the feed another is the return and the 3rd is a vint. It has a check valve in it so stop fuel running out if the car rolls over.
There is a regulator built into the swirl pot part that the return line runs to. The fuel goes out of the outlet and into the filter I believe. Then there is a T fitting in the feed line and one side goes to the return connection on the pump setup ind into the regulator. The regulator bleeds any excess pressure off and feeds the fuel straight back to the swirl pot. Quite a neat setup really.
I reckon if you wanted to you you could run the stock pump as a full return setup and just not use the T piece and run a line back from the rails.
Boxhead will be able to tell you for certain how the connections go i.e where the filter fits in etc.
Cheers
__________________
Mike Murphy
Melbourne Australia
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05-31-2006, 05:20 PM
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CC Member
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Join Date: Aug 2003
Location: Melbourne. Australia,
VIC
Cobra Make, Engine: Classic Revival kit. LS1 motor. T56 Tremec 6 speed. 17" replica Halibrand wheels.
Posts: 559
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Not Ranked
Gav,
I have the stock fuel pump in the tank as supplied by GM. Mine is a simple setup where by fuel comes from tank pump and is parallel with the fuel regulator before it passes through filter then to the rails. The regulator has a port to send excess fuel to the return line of the fuel tank. I also have all that other GM (pollution stuff) which is mounted on the fuel filler hose which incorp. the carbon canister & return fuel line routing. Got details if you need them.
I have not experience any fuel shortages or hunting when pushing it at winton so I guess it works fine 
Leeroy. |
05-31-2006, 05:52 PM
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CC Member
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Join Date: Apr 2006
Location: Mildura,
vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,349
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Not Ranked
Have you guys got any pics of the stock fuel system?
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06-01-2006, 05:09 AM
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CC Member
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Join Date: Aug 2004
Location: Geelong,
Vic
Cobra Make, Engine: Classic Revival.
Posts: 215
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Not Ranked
Hi Gav,
The line from the pump goes out to the filter. The other end of the filter has a tee type fitting which returns to the tank and also to the fuel rail. The third line goes to the canister as Mike mentioned.
Hope these pics are what you are after. (Hope they appear, if not they are in my gallery.)
Cheers,
Dale.
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06-02-2006, 03:39 AM
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CC Member
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Join Date: Apr 2006
Location: Mildura,
vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,349
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Not Ranked
Thanks Dale, just what I needed.
Gav
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06-02-2006, 07:54 PM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
Hello Gav, If you can give me an email address then I can supply you the pages from Holden shop manual in a pdf file.
Same goes to anyone else needing specific info or wireing diagrams etc related directly to the GM stuff.
I have a copy of the things you need both at work and home so as soon as I see your sddress I will forward the info.
__________________
Cruising in 5th
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Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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06-02-2006, 11:31 PM
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CC Member
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Join Date: Jul 2003
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival. LS1, T56, Billy Cart
Posts: 231
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Not Ranked
You have PM
Hi Boxhead, I just shot you a PM with all details.
Cheers
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06-03-2006, 05:22 AM
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CC Member
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Join Date: Feb 2006
Location: Melbourne,
Vic
Cobra Make, Engine: Classic Revival (CR3204) 6ltr s/c, T56 6spd
Posts: 95
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Not Ranked
Hi Boxhead,
If its not too much trouble I too might request a copy of the GM wiring info. I have sent a PM with my details.
Regards,
Luke...
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06-03-2006, 06:03 PM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
No worries Luke. I will send it from work tomorrow
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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06-04-2006, 03:37 AM
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CC Member
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Join Date: Apr 2006
Location: Adelaide,
SA
Cobra Make, Engine: Classic Revival (under construction)
Posts: 36
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Not Ranked
Me too
Hi Boxhead
I would like them too. I have sent a PM. Many thanks for your help
Phil Chis
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06-04-2006, 05:06 AM
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CC Member
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Join Date: Jan 2004
Location: Gold Coast,
AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
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Not Ranked
Boxhead you have PM.
I'll distribute it to the needy QLD Darksiders. So any QLD Club Members drop me a line if you need it.
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06-04-2006, 05:21 AM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
I will forward all from work tomorrow
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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06-04-2006, 05:55 AM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Me too thanks David 
Cheers
__________________
Proudly registered since 2013.
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06-04-2006, 05:58 AM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
Can you shoot me an email address to either a pm in here or to my email at work?
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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