How Important is a COCKPIT fuel pressure gauge?

[focusedrage]

Considering getting a greddy model, there are cheeper ones that go in the engine compartment, which will better serve me?

Thanks

 

[Mike 99GSX]

I have the Autometer electronic one but honestly if I were to do it again, I would have just got a mechanical one. #1 they're expensive #2 you need a second person to watch it while you adjust it or you have to adjust and walk back and forth #3 I'm sure a mechanical one is probably a little more accurate. The only advantage I see is that a passenger can watch the gauge for you as you build boost and makesure the pressure is rising with the boost like it should but as long as you've got a good pump and an FPR that should easily happen. Just my opinion.

 

[focusedrage]

thanks

 

[DSM mechanix]

the major down-side to a mechanical cockpit FP gauge is, what if it leaks?

 

[focusedrage]

oh deffintly the greddy is electric... that would be horible if feul was sprayed everywhere

 

[4wd-Eclipse]

Electrical FP gauge is more safer, accurate & faster response than mechanical gauge. Just my opinion.

 

[Mike 99GSX]

You can't run a mechanical gauge into your cockpit. Technically you could, but you'd have to be crazy to do it. A mechanical gauge mounts on your fuel rail or on your FPR. An electric gauge has a sending unit that would run electrically to the cockpit!!

 

[focusedrage]

yeah totaly, its a good idea to do that with oil pressure too

 

[tanner261]

Hasn't anyone ever heard of a fuel pressure gauge isolator?

Yes, you can run a mechanical fuel pressure gauge in the cab.

 

[DSM mechanix]

Originally posted by tanner261
Hasn't anyone ever heard of a fuel pressure gauge isolator?

Yes, you can run a mechanical fuel pressure gauge in the cab.

yup, but the one I saw cost $85, may as well get a electric gauge.

 

[kpt4321]

How important is a cockpit fuel pressure gauge?

Well, how important to you is being able to read fuel pressure? Do you think you need to know what it is while you drive? If you have the money and the time, there is no reason not to keep track of something else going on under the hood.

....Kyle T.

 

[nowayout]

it's good to use for testing to make sure your fuel pressure goes up with boost.

 

[candela]

Electrical FP gauge is more safer, accurate & faster response than mechanical gauge. Just my opinion.

Ya it is

You can't run a mechanical gauge into your cockpit

You guys are wussies... I say run an mechanical oil pressure and fuel pressure in the cabin

 

[MNGSX]

Any gauge is only as good as it's components and installation.



I'd do electronic as long as it is'nt autometer.


Get VDO or another high quality gauge.

A electronic gauge is only as good as the sensor. It's easy to get the display calibrations on but if the sensor is goofy!

Mechanical gauges are only as good as the calibration in the gauge. How far the needle moves when the actuator gets a given pressure.

In mass production using good electronic components and sensors electronic is the hands down winner.

 

[focusedrage]

oh yeah what is the max pressure i should look for on a gauge 50psi? 80psi? 100psi?

 

[KRAZYKOREAN]

Originally posted by candela



You guys are wussies... I say run an mechanical oil pressure and fuel pressure in the cabin

Just make sure you know how to do it..or the results might be alittle messy..YEAH



Also the stock fuel pressure is 43..no need for anything higher then a 80psi gauge..

 

[jdmawd]

Originally posted by nowayout
it's good to use for testing to make sure your fuel pressure goes up with boost.

 

[focusedrage]

excelent, thanks guys

 

[Turboniam]

Originally posted by jdmawd

It looks as though at idle, your in cabin FP gauge reads at or just under 40 psi on your 1g??

Is that correct?

 

[jdmawd]

very very old pic it should not read 40 at idle. ill look at it tomorrow, i dont park my car at my house ill let you know.

 

[Turboniam]

The reason I ask is because I am trying to determine off of which source to set base FP.

Pre-fuel rail or post fuel rail??

Meaning, obviously there is going to be a difference in fuel pressure that the in cabin gauge vs the one on the FPR will read... so which one do you set the base FP to??

Thanks for the help

 

[jdmawd]

Originally posted by Turboniam
The reason I ask is because I am trying to determine off of which source to set base FP.

Pre-fuel rail or post fuel rail??

Meaning, obviously there is going to be a difference in fuel pressure that the in cabin gauge vs the one on the FPR will read... so which one do you set the base FP to??

Thanks for the help

my sender is mounted to fuel filter. there is not loss in the pressure signal from the sender to the gauge its electronic.

 

[Turboniam]

My question is refering to the two different locations of FP gauges.

I have one electronic in cabin, and the sender is located at the fuel filter, and another guage at the FPR.

Which one should I set the FP to? The in cabin aka pre-fuel rail gauge, or the FPR gauge aka post fuel rail??

Thanks for the help

 

[jdmawd]

Originally posted by Turboniam
My question is refering to the two different locations of FP gauges.

I have one electronic in cabin, and the sender is located at the fuel filter, and another guage at the FPR.

Which one should I set the FP to? The in cabin aka pre-fuel rail gauge, or the FPR gauge aka post fuel rail??

Thanks for the help

makes no difference, just pull the vac line from the reg when you adjust it.

 

[Mike 99GSX]

what is the difference in pressure(pre and post fuel rail)? Just curious.