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Fuel Pressure Gauge Question

Old Jun 1, 2008 | 03:28 PM
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Fuel Pressure Gauge Question

I want to buy a fuel pressure gauge to install where my radio was.

Right now I have the stock 9 Fuel Pump, and stock 9 injectors and stock 9 turbo.

I will be soon upgrading to a 255 wal. fuel pump, bigger injectors and a 3076 Turbo.

What fuel pressure range should I get. Autometer sells one that is 0-100psi that I was considering as it matches my other gauges.

I want to make sure the gauge can accept the maximum fuel pressure that my system will be producing under no-boost applications.

This is what I was looking at:
http://www.autometer.com/cat_gaugede...earch&gid=2822

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Old Jun 1, 2008 | 03:45 PM
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With no vac lines hooked up it should be around 42psi. And we have raising rate fpr's so for every psi of boost you run the fuel pressure increases the same. So even if you ran 30psi it would still just be 72psi. 0-100psi is good to go!

--Josh
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Old Jun 1, 2008 | 03:52 PM
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anybody have a really good sucessful install on this and can give me tips? I used the "oil pressure sender" install thread and that was cake, don't see anything similar for fuel pressure install.
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Old Jun 1, 2008 | 04:03 PM
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Originally Posted by SwiftEVO
With no vac lines hooked up it should be around 42psi. And we have raising rate fpr's so for every psi of boost you run the fuel pressure increases the same. So even if you ran 30psi it would still just be 72psi. 0-100psi is good to go!

--Josh
oh yeah - how mean are the stock 9 injectors and fuel pump. - I have a ton of bolt ons and I am getting tuned this month - will i need bigger ones before I do the 3076?
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Old Jun 1, 2008 | 04:27 PM
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once you get the regulator one then psi should be around 38psi, 42psi is what it is without the regulator....
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Old Jun 1, 2008 | 04:42 PM
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I am worried about not having big enough injectors and fuel pump for my setup and the tune I have coming up soon.

Mods are in my signature
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Old Jun 1, 2008 | 04:53 PM
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Check this site out

http://www.rceng.com/technical.aspx
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Old Jun 1, 2008 | 06:08 PM
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yeah, but what values do i use?
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Old Jun 1, 2008 | 06:12 PM
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dude you are gravy. i got a 20g with meth running 400WHP and using 680 injectors with walbro and perrin rail........with the aero regulator you can adjust it wherever you need it.........and i max out with 70 something PSI at WOT

just get your gauge from 20 to 80 and you should be more than fine........
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Old Jun 1, 2008 | 07:00 PM
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Originally Posted by krazirob
dude you are gravy. i got a 20g with meth running 400WHP and using 680 injectors with walbro and perrin rail........with the aero regulator you can adjust it wherever you need it.........and i max out with 70 something PSI at WOT

just get your gauge from 20 to 80 and you should be more than fine........
What I'm saying is that for calculating injectors what value should I use.

I was thinking of getting some of the injectors AMS sells. Not sure the best one though.
I'll do the 3076 Turbo next summer - I want the injectors to not be overworked - Maybe the 780CC?
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