How to add fuel pressure gauge to stock port?
11-13-2003, 03:19 PM
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How to add fuel pressure gauge to stock port?
I have a 1.5" Autometer gauge that I am tired of looking at...I can't sell it so I may as well stick it under the hood.
It looks like the factory schrader valve is a male end and the gauge is the same.
Any ideas how to hook them together?
Thanks!
It looks like the factory schrader valve is a male end and the gauge is the same.
Any ideas how to hook them together?
Thanks!
11-14-2003, 05:33 AM
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11-14-2003, 03:00 PM
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Originally Posted by black_yukon
Check this thread for more info
https://ls1tech.com/forums/showthread.php?t=113195
https://ls1tech.com/forums/showthread.php?t=113195
Thanks and if all goes well more crap that doesn't make me faster under the hood.
11-14-2003, 03:47 PM
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The schrader valve just screws out and can be removed with a simple valve stem core remover. 
The port on the fuel rail is -4AN so I don't think HD has that type of stuff. Any hydraulic shop will have the fittings you need, alot cheaper than that fancy anodized EARLS stuff too.
The port on the fuel rail is -4AN so I don't think HD has that type of stuff. Any hydraulic shop will have the fittings you need, alot cheaper than that fancy anodized EARLS stuff too.
11-14-2003, 05:18 PM
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Originally Posted by XLR8NSS
The schrader valve just screws out and can be removed with a simple valve stem core remover.
The port on the fuel rail is -4AN so I don't think HD has that type of stuff. Any hydraulic shop will have the fittings you need, alot cheaper than that fancy anodized EARLS stuff too.
The port on the fuel rail is -4AN so I don't think HD has that type of stuff. Any hydraulic shop will have the fittings you need, alot cheaper than that fancy anodized EARLS stuff too.
11-14-2003, 05:50 PM
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A -4AN fitting hose will have an inner diameter close to 1/4" but, the threads are not the same as NPT 1/4".
The guage you have should be male 1/8" NPT. What you need is a fitting/s that adapt male -4AN to male 1/8" NPT. Look at the attached pic. The blue fitting adapts from male -4AN to 1/8" NPT. Then you would use an 1/8" coupler to hook your guage up. Those are just some fittings I have laying around but, that gives you an idea.
More than likely you'll need two fittings to do what you want. If you go to a hydraulic store just tell them what you want to adapt to what and they'll help you get the right fittings.
BTW, AN fittings = no teflon tape NPT fittings = teflon tape.
The guage you have should be male 1/8" NPT. What you need is a fitting/s that adapt male -4AN to male 1/8" NPT. Look at the attached pic. The blue fitting adapts from male -4AN to 1/8" NPT. Then you would use an 1/8" coupler to hook your guage up. Those are just some fittings I have laying around but, that gives you an idea.
More than likely you'll need two fittings to do what you want. If you go to a hydraulic store just tell them what you want to adapt to what and they'll help you get the right fittings.
BTW, AN fittings = no teflon tape NPT fittings = teflon tape.
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11-14-2003, 07:23 PM
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hitman....go to speedtek in hurst and they will have everything you need for it. i had to make the same conversion from 1/4 to the -4an a while back for a fuel pressure gauge/nitrous system setup. they have it there
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