Fuel pressure gauge

[Larrythedog]

Can someone explaine why the electrical fuel pressure gauge is 200 bucks and the same oil pressure is 60?

 

[yossarian19]

Production volume?
I got nothin'

 

[Larrythedog]

I was thinking it was a liability issue?

 

[Cache96]

Bigger numbers??? i have no clue!!!

 

[jmaxj]

cause it's at least 50 cool factor points if you say you got a fuel pressure gauge i guess, and cool factor points cost more .

 

[5-90]

Can someone explaine why the electrical fuel pressure gauge is 200 bucks and the same oil pressure is 60?

Fittings, sensor, and if there's a line.

You run into the same thing with transfer hoses, quick-connects, and suchlike. Oil-rated hardware is relatively cheap, while fuel-rated hardware is spendy. There are plenty of additional safety standard, plus you have to prevent ESD, make sure the thing's not going to dribble fuel, ...

DO NOT SUBSTITUTE for a fuel system - that just gets you into trouble sooner or later. (It's a certainty, the only variable is "when.")

 

[_87_XJ_]

I believe its the sending unit that makes it so expensive, look at the mechanical gauges and you will see the price differance. Just be sure to mount it outside of the cab if you go with he mechanical one! A fuel leak behind your cluster would be bad!!!

 

[GrimmJeeper]

Gauge shopping is a real pisser, I just did a quick rundown of the gauges i want to run and its about 3x what I was looking to spend. I'm not going to be racing my rig so I think I can get away with running some of the cheaper stuff because winning or losing won't depend on a faulty reading for me.... I hope. Even with cheap stuff I'm looking at spending a few hundred bucks just for a speedo, tach, fuel and oil pressure, oil water and coolant temp, voltage, and a handful of warning lights.

Gotta pay to play though, right?

 

[5-90]

Gauge shopping is a real pisser, I just did a quick rundown of the gauges i want to run and its about 3x what I was looking to spend. I'm not going to be racing my rig so I think I can get away with running some of the cheaper stuff because winning or losing won't depend on a faulty reading for me.... I hope. Even with cheap stuff I'm looking at spending a few hundred bucks just for a speedo, tach, fuel and oil pressure, oil water and coolant temp, voltage, and a handful of warning lights.

Gotta pay to play though, right?

Could be worse - I plan on refitting my 88 with aircraft-style gages (the speedo will be most difficult to redo, but I want to be consistent...) and they're not cheap! Especially the six-cylinder bargraph pyrometer I'd really like to install (I think that's a twelve-hundred-dollar gage setup; gage, six thermocouples, ... Very useful engine health and tuning tool, tho...)

 

[Skullver]

Could be worse - I plan on refitting my 88 with aircraft-style gages (the speedo will be most difficult to redo, but I want to be consistent...) and they're not cheap! Especially the six-cylinder bargraph pyrometer I'd really like to install (I think that's a twelve-hundred-dollar gage setup; gage, six thermocouples, ... Very useful engine health and tuning tool, tho...)

Why on earth would you want to do that? Please don't say because you can, there must be some sort of logical reasoning behind this?.

 

[Larrythedog]

Could be worse - I plan on refitting my 88 with aircraft-style gages (the speedo will be most difficult to redo, but I want to be consistent...) and they're not cheap! Especially the six-cylinder bargraph pyrometer I'd really like to install (I think that's a twelve-hundred-dollar gage setup; gage, six thermocouples, ... Very useful engine health and tuning tool, tho...)

If your going to spend $1,200 on one guage you must be sleeping on a matress stuff with cash......... You want your name on the side oif my Jeep?

 

[Super mud]

Just thought I would add some important info to this thread:

The difference between these 2 is that one is a full sweep and one is a short sweep gauge. I still don't know why it makes the full sweep one 4x as much but I guess it's the stuff they put in them and makes them more accurate. Or probobly cause the full sweep has more of a cool factor I guess. Also what I don't understand is why they make an electric 200$ full sweep fuel pressure gauge but not an electric short sweep fuel pressure gauge. Wtf. Cause my plan was to run a tranny temp and fuel pressure in a nice color matching pod on top the dash far left.

 

[slappomatt]

Just thought I would add some important info to this thread:

The difference between these 2 is that one is a full sweep and one is a short sweep gauge. I still don't know why it makes the full sweep one 4x as much but I guess it's the stuff they put in them and makes them more accurate. Or probobly cause the full sweep has more of a cool factor I guess. Also what I don't understand is why they make an electric 200$ full sweep fuel pressure gauge but not an electric short sweep fuel pressure gauge. Wtf. Cause my plan was to run a tranny temp and fuel pressure in a nice color matching pod on top the dash far left.

This is your correct answer. the Fuel guage is a full sweep style and they cost more.

 

[badron]

Why full sweep?

It makes them a lot easier to read. When you don't want to take your eye off the road for long.
When I install them I like to to put normal or normal range of all gauges pointing up so when I do look at them. All I need to see is the pointers pointing up more or less. Don't need to read numbers to know all is well.

Full sweep fuel gauges. In the days of carbs. When fuel pressure max out a 7 psi mostly and a drop of .1 or 2 could be a lean burn. The short sweep gauge was a PIA to read that small of a drop. The FS gauge was ONLY way to go for the 1/4

I also like at least one light on the oil pressure. Lose oil pressure at any real speed and you will have a 500 LB paper weight before you know it.
Cost of them???????? got me.
IMO dummy lights should complemented gauges NOT replace them.

 

[WAM174]

This is your correct answer. the Fuel guage is a full sweep style and they cost more.

Right sentiment, wrong answer. The $200 gauge uses a digital microprocessor and a stepper motor with a remote electric sending unit. So you can place the gauge in the driver's compartment without risk of fuel leakage. The full sweep is a plus, but not the price driver.

If you want a full sweep pressure gauge for outside the passenger compartment, here's one for under $10: Go to mcmaster.com and enter 3846K88.

 

[Larrythedog]

Right sentiment, wrong answer. The $200 gauge uses a digital microprocessor and a stepper motor with a remote electric sending unit. So you can place the gauge in the driver's compartment without risk of fuel leakage. The full sweep is a plus, but not the price driver.

If you want a full sweep pressure gauge for outside the passenger compartment, here's one for under $10: Go to mcmaster.com and enter 3846K88.

Bingo.