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16-02-2010, 11:21 PM
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AU00
Join Date: Sep 2008
Location: Sydney
Posts: 47
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Hi All,
I have a AU2 XR8 200kw and was wondering what pressure the pump should be pushing out. Also when i boot it should it give more pressure?? The reason i ask is when i boot it the car seams to lag like it is not getting enough fuel.. Thanks
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 : http://www.aufalcon.com.au/cgi-bin/index.cgi?act=item&i=549 
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17-02-2010, 01:33 AM
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FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
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6 cylander and v8 pumps deliver a maximum out put of 85 litres per hour at 300 kpa,
idle pressure 225 kpa in another part of the book it says (i6ho) 300 kpa and it reads like the v8 might be 275 kpa delivery , so i`d say between 275 and 300 kpa  , it also says maximum pressure drop once switched off is 10% in 10 seconds from max ellerys shop manual .
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17-02-2010, 06:48 PM
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Regular Member
Join Date: Feb 2010
Location: Country NSW
Posts: 131
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If the pump can deliver 240ml of fuel in 10 seconds @ 275 kPa she's good.
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19-02-2010, 09:40 AM
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Back on the road
Join Date: Dec 2004
Location: Wollongong, NSW
Posts: 3,205
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The fuel pump delivers the volume, and the regulator sets the pressure.
The AU 200kw XR8 has the standard fuel pressure reg; 39psi at the fuel rail with the vacuum reference disconnected. The fuel pressure regulator maintains a constant pressure drop across the injector e.g. as manifold vacuum increases, fuel rail pressure is reduced and vice versa.
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------------------------------------------------------------------------- AU XR8 Ute 13.90 @ 100mph - http://www.aufalcon.com/xr8ute 5L Windsor, GT40X heads, Crane 2030, Pacey 4-1s, Lukey 3", 3.91:1, auto. Tuned by me w/Quarterhorse and BinaryEditor. Coming Soon: Ported lower intake, Tickford "Premium" Brakes, and a good wash. Last edited by xr8ute; 19-02-2010 at 09:50 AM. Reason: added info |
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24-04-2014, 05:49 PM
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#5 | |||
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Starter Motor
Join Date: Nov 2013
Posts: 6
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Quote:
Leads tps sensor a dead injector .... Now I have a new problem |
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24-04-2014, 06:20 PM
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#6 | ||
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Starter Motor
Join Date: Nov 2013
Posts: 6
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Can some one send me a pic of the fuel vacuum regulator???
To chuck14u35@hotmail.com please it's urgent |
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24-04-2014, 06:23 PM
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#7 | ||
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Starter Motor
Join Date: Nov 2013
Posts: 6
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Can some one email a pic of the efi vacuume reg
Chuck14u35@hotmail.com as I'm fitting nos ATM and Wanna make sure I'm doing it right |
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AU2 XR8 fuel pressure?
Re: AU2 XR8 fuel pressure?
Linear Mode
