fuel pressure gauge
- Thread starter 98LSC32V
- Start date
driller
Dedicated LVC Member
Are you putting the gauge on the fuel rail?
Removing the schrader valve - you need a 1/8" NPT male fitting to screw into the fuel rail. Most fuel pressure gauges will have 1/4" NPT male threads, so typically you require an adaptor - 1/8" NPT male X 1/4" NPT female. Brass or stainless steel.
Where are you putting the gauge? If you need the AN adaptors, find a dealer that has the complete line of Russell fittings.
http://www.russellperformance.com/
Removing the schrader valve - you need a 1/8" NPT male fitting to screw into the fuel rail. Most fuel pressure gauges will have 1/4" NPT male threads, so typically you require an adaptor - 1/8" NPT male X 1/4" NPT female. Brass or stainless steel.
Where are you putting the gauge? If you need the AN adaptors, find a dealer that has the complete line of Russell fittings.
http://www.russellperformance.com/
B
bigdog1279
Guest
what dose a fuel presur gauag do and can it work with a continental
Frogman
Dedicated LVC Member
- Joined
- Jul 11, 2005
- Messages
- 6,987
- Reaction score
- 1
Fuel = that's the gas your engine uses
Pressure = That's the PSI or Pounds per Square Inch that the fuel is at while the motor is running
Gauge: A device that is used to measure various things. In this case, it Measures and displays what the fuel pressure is.
No, it wont work for a Contiental. :why:
Yes it will work for a Conti! It will work for anything with fuel.
Pressure = That's the PSI or Pounds per Square Inch that the fuel is at while the motor is running
Gauge: A device that is used to measure various things. In this case, it Measures and displays what the fuel pressure is.
No, it wont work for a Contiental. :why:
Yes it will work for a Conti! It will work for anything with fuel.
B
bigdog1279
Guest
ok i still don,t understand ok then
whats the cost of one and how mouch to hook it up and is it worth it
whats the cost of one and how mouch to hook it up and is it worth it
Frogman
Dedicated LVC Member
- Joined
- Jul 11, 2005
- Messages
- 6,987
- Reaction score
- 1
With respect, if you don't know what it does, then you most likely don't need it.
driller said:
I'm looking to put it on the fuel rail but i'm afraid of hood clearance problems. This is the one I got: http://store.summitracing.com/partd...art=SUM-800160&autoview=sku&Ntk=KeywordSearch. It says it will screw into any 1/8 NPT female port...
1wykdmk8
LvC Dues Collector
95LSC32V said:
If it says that it screws into any 1/8 NPT female port, then it will screw directly into the fuel rail. Do not worry about hood clearance because with this one that several ppl are using on the Mark VIII. Driller used a 90 elbow and his sits nice, but I just recently put that gauge on another members car (jdlmkviii) and used just the blue adapter. It sits kinda high on the fuel rail, but clears the hood with no problem. So, I would imagine that that Summit gauge should work with no problem.
What you are going to have to do is remove the schrader valve to use your gauge. Just make sure to release the fuel pressure from the rail before removing the schrader valve.
Hope that helps. :Beer
driller
Dedicated LVC Member
95LSC32V said:
Well then, your first post confused me when you asked about going from -4 AN on the line to -8 AN on the gauge. I though you might have been remote mounting a mega gauge somewhere with -4 AN hose fittings. Dash 4 size is equivalent to nominal 1/4" while dash 8 size is equivalent to nominal 1/2", and the fitting on the fuel rail for the schrader valve is 1/8" NPT(National Pipe Thread).
1wykdmk8
LvC Dues Collector
Wait a minute.....I thought the fuel rail was a 1/16" NPT vice a 1/8" NPT. If that is the case you will need the same adapter that driller used to mount that gauge..... :Beer
driller
Dedicated LVC Member
1wykdmk8 said:
:I
Dude, you're right! It is 1/16th NPT!! What was I thinkin'?!!!
1wykdmk8
LvC Dues Collector
Well I finally got the gauge hooked up. I think I may eventually get a braided hose and mount it outside the windshield if I ever get that dry shot. Anyone know what the fuel pressure is supposed to be at idle? It's at 30psi for me and goes to 35-40 when I rev it. With the cutouts open it goes to 40psi and with them closed it goes to 35psi.
driller
Dedicated LVC Member
I believe spec is 38 psi idle. No load revs do not give good pressure readings. You need an extension hose and duct tape the guage to the windshield and see what the psi is on a WOT run. Should stay up around 40.