Size Of Stock Oil Perssure Sensor Thread?

[boostn0199]

Does anybody know what is the standard size of the oil pressure sensor in the 33 gtst is it 1/8 BST or 1/8 NPT?

[zebra]

NPT from memory

[boostn0199]

hrmmmm all others have told me it was bspt since thats what is used in japan.

[r33_racer]

npt is predominantly american. it would be bspt.

[blk94r33]

npt is predominantly american. it would be bspt.

Yep, British Standard Pipe, weird huh?

Fitted a new oil pressure gauge to my car the other day, had to get a NPT-->BSP adapter, as the NPT thread would screw in and seal, but only by 3-4 threads and I didn't trust it, so checked the thread, and BSP it was...

[boostn0199]

Yep, British Standard Pipe, weird huh?

Fitted a new oil pressure gauge to my car the other day, had to get a NPT-->BSP adapter, as the NPT thread would screw in and seal, but only by 3-4 threads and I didn't trust it, so checked the thread, and BSP it was...

Where did you get the adaptor from?

[blk94r33]

Where did you get the adaptor from?

Any good bearing/hose/hydraulics shop should be able to help you out. Only cost me $5.

[boostn0199]

Any good bearing/hose/hydraulics shop should be able to help you out. Only cost me $5.

Thanks, rang up enzed and they quoted me 5bux for a steel one. I was thinking of making a Tpeice there and running the oil temp and pressure sensors together but have read some people have had failures in there fittings from vibrations and fatigue so was thinking if not that to run a braided line from there to somewhere where I can secure the Tpeice so it doesnt have much stress on it.

Anyone had any experience with tpeice the sensors?

[Duncan]

yes, that's how I've done it on my race car. braided line about 300mm from the standard pressure sender to a t piece mounted under the brake master cylinder. Been running for years without leaks and senders are working fine.

the only trick was...I wasn't happy with remote mounting the temp sender as I wasn't sure I would get an accurate reading without flow past it. My temp sender is mounted on the remote filter adapter plate instead

[blk94r33]

Thanks, rang up enzed and they quoted me 5bux for a steel one. I was thinking of making a Tpeice there and running the oil temp and pressure sensors together but have read some people have had failures in there fittings from vibrations and fatigue so was thinking if not that to run a braided line from there to somewhere where I can secure the Tpeice so it doesnt have much stress on it.

Anyone had any experience with tpeice the sensors?

That's the problem, the adapter I have only brings the sender out from the block about 10mm, a T-piece style one (was hoping to hook up the factory warning light too) would have worked out about 30mm, that's alot of stress one one fitting given heat, movement of the engine, vibration and the weight of the senders waving about. I imagine if you could brace the top to the block somehow, it might help?

[boostn0199]

That's the problem, the adapter I have only brings the sender out from the block about 10mm, a T-piece style one (was hoping to hook up the factory warning light too) would have worked out about 30mm, that's alot of stress one one fitting given heat, movement of the engine, vibration and the weight of the senders waving about. I imagine if you could brace the top to the block somehow, it might help?

If you used the braided line and just suported the Tee somewhere it would be alright but I think Im just going to get my sump bolt modified to have the oil temp sensor in it and run that there and just use the adaptor to put in the new pressure sensor.

[Munkyb0y]

yes, that's how I've done it on my race car. braided line about 300mm from the standard pressure sender to a t piece mounted under the brake master cylinder. Been running for years without leaks and senders are working fine.

the only trick was...I wasn't happy with remote mounting the temp sender as I wasn't sure I would get an accurate reading without flow past it. My temp sender is mounted on the remote filter adapter plate instead

pics?

[Duncan]

lol no chance.....it is under the plenum on a gtr.

just imagine a piece of braided line 300mm long with a 1/8npt (or whatever it is) on on end, and a t piece on the other. cable tied to the brake lines above the chasis rail and under the brake booster next to the firewall.

works well...very reliable in a car that spends plenty of time bashing around

[B-rice]

Guys how did you remove the pressure sensor. Ive tried different methods to no luck.

[89CAL]

Correct size spanner.....

[Sick_R31]

Air chisel

[B-rice]

There is no space thinking about removing intake manifold to get to it. This is a serious question!!

[89CAL]

My answer was serious....

 

Modify the spanner if need be. Find the right one and bend it, cut and weld it to the right angle etc.

 

Otherwise you will have to take something off to get to it as you have suggested. Would it be easier to go from underneath?

 

Im pretty sure i removed a knock sensor from underneath once. Wasnt fun but was doable

 

[B-rice]

Thanks will try bending a spanner and see if that works

[iruvyouskyrine]

Do it from under the car in between it and the firewall. Should be shitloads of room