Need fuel PSI gauge for fuel rail, what PSI range?
04-22-2007, 09:15 PM
#1
Need fuel PSI gauge for fuel rail, what PSI range? I work on cars from time to time and need a mechanical fuel pressure gauge to check what the actual fuel pressure is.
What PSI range should I get?
- 0 - 60 PSI
or
- 0 - 100 PSI
Reason I ask is on Jeg's website it says to use a 0-100 on EFI cars.
Also, could rig it up so it is viewable while driving?
What PSI range should I get?
- 0 - 60 PSI
or
- 0 - 100 PSI
Reason I ask is on Jeg's website it says to use a 0-100 on EFI cars.
Also, could rig it up so it is viewable while driving?
04-22-2007, 09:37 PM
#2
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0 to 100 works great. Autometer makes programable gauges with warning lights now also. A pillar is my personal pref. Your going to be at the edge of the scale on the gauge at 60 psi with a base pressure of 59 psi.
04-22-2007, 10:47 PM
#4
0-100
If you are going to get a gauge to keep on the inside, you need to get an electrical gauge. It is a MAJOR safety hazard (and illegal) to run a fuel line inside the cabin. But if you just want to be able to look at it while under the hood, all you need is a mechanical gauge and that will take the place of your stock schrader valve on the end of the rail. However, these are useless for the most part because if your fuel pressure is going to drop, it will start to do so in the upper RPM's. And all you'll be able to see with it on the fuel rail is when it is idling. Unless of course you are on the dyno. But I sure as hell ain't gonna be the stupid one poking my head in the engine bay when the engine is WOT going to redline!
If you are going to get a gauge to keep on the inside, you need to get an electrical gauge. It is a MAJOR safety hazard (and illegal) to run a fuel line inside the cabin. But if you just want to be able to look at it while under the hood, all you need is a mechanical gauge and that will take the place of your stock schrader valve on the end of the rail. However, these are useless for the most part because if your fuel pressure is going to drop, it will start to do so in the upper RPM's. And all you'll be able to see with it on the fuel rail is when it is idling. Unless of course you are on the dyno. But I sure as hell ain't gonna be the stupid one poking my head in the engine bay when the engine is WOT going to redline!
