Oil Pressure Sensor Thread

[LOUDSHO92]

I am looking to add an oil pressure sensor and I pulled the sensor and I wanted to double check what the thread was for the oil pressure sensor. Can anyone let me know what the thread is for the oil pressure sensor is? I need to get a few adapters for it. Thanks.

 

[Phoenix]

1/4 npt

 

[LOUDSHO92]

Thanks.

 

[SeanMc]

Bet you can't say that in one breath.

 

[91PDXmocha]

Bet you can't say that in one breath.

Sure you can .

 

[illSHOyou]

I am looking to add an oil pressure sensor and I pulled the sensor and I wanted to double check what the thread was for the oil pressure sensor. Can anyone let me know what the thread is for the oil pressure sensor is? I need to get a few adapters for it. Thanks.

I recommend remote mounting. Fixed mounting often leads to a failed sender unit in a short period of time due to vibration. Most tend to mount the sender on a T on the backside of the motor. Not always Ideal, and can lead to trouble.

 

[Sho Amo]

Heres what I did.

2x 1/4 npt to -3an fitting
1x -3an stainless braided hose
1x 1/4 tee

Then you can have your stock sensor, aftermarket, and turbo feed. All without being behing the motor.

 

[pitaSHO]

Heres what I did.

2x 1/4 npt to -3an fitting
1x -3an stainless braided hose
1x 1/4 tee

Then you can have your stock sensor, aftermarket, and turbo feed. All without being behing the motor.

Pics?

 

[SinisterSHO]

is this thread about oil pressure sensors, or about the thread of oil pressure sensors?

 

[somedude_001]

I recommend remote mounting. Fixed mounting often leads to a failed sender unit in a short period of time due to vibration. Most tend to mount the sender on a T on the backside of the motor. Not always Ideal, and can lead to trouble.

a T on the back of the engine causes problems? I had a T on my turbo SHO for 4 or 5 years and never paid it any attention because it never needed any. I had a mechanical pressure gauge so that may not apply.

 

[Toolman]

Yes, it is not an issue with a mech gauge, but the sender for an elec gauge is pretty heavy, you will want to make sure it is well secured.

 

[gmorrell]

More modern "pressure sensors", are powered sensors are typically very vibration resistant, and can be mounted directly to the engine. These sensors will require 5V or 12V power and ground, usually supplied by the gauge, and the sensor will output 0 to 5V for it's full scale pressure measurement range.

Old fashioned "pressure senders", the one-wire style, are mechanical devices - think of the mechanical guts of a pressure gauge connected to a variable resistor. Their resistance to ground (the sender body) varies as the pressure changes.

These can be vibration sensitive, and are best not mounted directly to the engine. Usually the sender is in a bracket on the firewall or fender, and is connected to the engine with a short length of hose. Just remember that the sender body loses its ground connection if you use rubber hose.

 

[SHOtime2511]

Oil filter sandwich block.
And a FL-1A still fits.

 

[ycode90]

I believe certain sensors should be mechanical . Oil pressure is one of them.

 

[Sho Amo]

I have the second one Gary pictured, and mounted the same way he described. I dont have any pictures right now. My reasoning behind remote location is turbo downpipe clearance. I was actually planning to run a 3.5in downpipe but scrapped the idea.

An electric gauge is just as accurate and has way less crap going into your A-pillar. Its really just a mechanical gauge with a remote viewing location.

 

[ycode90]

Yea I prefer mech.

 

[trainguy1989]

I have the second one Gary pictured too mounted directly on a T on the back of the motor. Has not failed yet......... knock on wood......

 

[gmorrell]

For oil pressure, I prefer a full sweep mechanical gauge, but I won't plumb them with that 1/8" nylon tubing - that stuff turns rock hard after about a year in the engine compartment, scares the crap out of me, and I've had issues with leaks at the fittings.
I prefer to use -3 Teflon/Stainless braid line with like I did here in my CSVT.


There's nothing wrong with real pressure sensors, they're far more linear than the old fashioned resistive senders and allow using the full sweep stepper motor driven gauges. Lately the gauge vendors seem to have gone to the lowest bidder to build their resistive senders, and more recently, I've seen numerous problems with them. (Can you say "Hecho En China?")

I'd much rather have real, linear sensors and full sweep stepper gauges like these...
The new dash for my SVO Mustang.


...than old and busted resistive senders and short sweep gauges like these.