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Location:
coffs harbour
Registered:
July 2003
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GT4 Fuel Pressure Regulator
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Tue, 08 July 2003 10:59
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have one of these for a gt4, wanted to know if it was easy to install yourself? where does it go? what do you have to do?
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Location:
Colac, Victoria
Registered:
May 2002
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Re: GT4 Fuel Pressure Regulator
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Tue, 08 July 2003 11:04
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i just jumpered my fuel pressure fuse in the fuse box aka modification to make it run a constant 13.5v instead of variable rate of v ..
seems to work fine ! fuel pump hasnt carked it yet 
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Location:
coffs harbour
Registered:
July 2003
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Re: GT4 Fuel Pressure Regulator
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Tue, 08 July 2003 11:09
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how did you do this? its not my gt4, its a mates, and he only just bought it, so we don't know where everything is yet.
this sounds like a good thing to do as a bandaid for your engine till you can get it done properly.
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Location:
Colac, Victoria
Registered:
May 2002
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Re: GT4 Fuel Pressure Regulator
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Tue, 08 July 2003 11:14
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follow the link danny gave you in the other thread for the VSV modification - there will be a link on that page to show you how its done.
basically all it is is a wire jumper placed between 2 of the 4 pins used in the fuel pump fuse ..
very simple mod - and cheap to do ..
i can take a pic of mine - but it might not be up for a few days
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Location:
coffs harbour
Registered:
July 2003
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Re: GT4 Fuel Pressure Regulator
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Tue, 08 July 2003 11:36
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thanks. i don't think i really need to do it, was more interested than anything. we already have the pressure regulator. really want to install that.
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Location:
Canberra
Registered:
June 2003
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Re: GT4 Fuel Pressure Regulator
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Wed, 09 July 2003 03:48
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It's not a bandaid, it's a way on improving initiala acceleration pick up. In the stock setup the fuel pump trundles along at 6V (from memory) to conserve wear etc. When you floor it the pump circuit flips over to the full 13V to give the pump the grunt it needs to supply the extra fuel demand. You can gain a slight performance advantage by having the pump running at 13V all the time....hence there's no delay in fuel pressure as the pump is already working at full efficiency.
As for your fuel reg, that's another issue altogether. hat exactly do you have...adjustable, rising rate, stock????
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