stupid oil pressure fittings

Discuss the RB20, RB25 and RB26 series engines.
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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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ok, got my hands on some new gauges for the motor but ofcourse i forgot they were in bspt and not npt.now i need a bspt tee thats made out of steel and not brass, anyone know where i can source one?


y3llows14
Posts: 651
Joined: Sat Sep 14, 2002 8:34 pm

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Doesnt performance or courtesy nissans have some? they put it as "nismo" t fitting.

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NISMO_RB25
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Joined: Thu Nov 06, 2003 4:40 am
Car: 1992 240SX with RB25DET, 1987 RX-7 TII

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courtesy has them, but they look like they are brass.

You could run braided line from the fitting that will be able to flex as the motor moves and then hard mount the oil sending units to the engine bay. That way you don't have to worry about the brass fitting breaking do to weight on it. Just an idea.

y3llows14
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Joined: Sat Sep 14, 2002 8:34 pm

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Or you can just buy regular Earls t fittings and die the fitting to 1/8bspt.

nukeone
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Joined: Thu Aug 25, 2005 9:01 am

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I got one for about $25 shipped to me. Came from HiPro (www.hiprollc.com) but you have to call them since they don't have it on their website - connect it to the block (1/8 bsp threads) and then attach the stock oil pressure sending unit to the back (again, stock Nissan threads). There are two other ports that are 1/8 NPT fittings for connecting an oil pressure gauge plus a plug to plug the extra port if not needed. The adapter is made of steel but is cad platted so it won't rust. Before this, I had a brass fitting that only lasted about a month before breaking and dumping my oil. This fitting has been on for over a year, with no problems.

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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nukeone wrote:I got one for about $25 shipped to me. Came from HiPro (www.hiprollc.com) but you have to call them since they don't have it on their website - connect it to the block (1/8 bsp threads) and then attach the stock oil pressure sending unit to the back (again, stock Nissan threads). There are two other ports that are 1/8 NPT fittings for connecting an oil pressure gauge plus a plug to plug the extra port if not needed. The adapter is made of steel but is cad platted so it won't rust. Before this, I had a brass fitting that only lasted about a month before breaking and dumping my oil. This fitting has been on for over a year, with no problems.
yeah ive found that fitting only problem is i need bspt all round not some bspt and some npt.fitting would be mint if it wernt for that.

Tictakman
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Joined: Wed Oct 23, 2002 2:42 pm

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i think mcmasters.com has those type fittings. not sure though.

Zak

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NISMO_RB25
Posts: 1066
Joined: Thu Nov 06, 2003 4:40 am
Car: 1992 240SX with RB25DET, 1987 RX-7 TII

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sorry i didn't read your first post correctly. I thought you needed bspt to npt. I know they are a little pricey, but I would go with one of the HKS (or other brand) sandwich adapter. The ones that I have seen were al bspt.

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300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

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why would you need to run the stock oil pressure sending unit aswell as a new one for the new gauge? I added a new gauge and a new oil pressure sending unit but I dont see the need for both?

y3llows14
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Joined: Sat Sep 14, 2002 8:34 pm

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Im assuming the 2 ports are for Oil temperature and Oil pressure gauges.

nukeone
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Joined: Thu Aug 25, 2005 9:01 am

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300Plus wrote:why would you need to run the stock oil pressure sending unit aswell as a new one for the new gauge? I added a new gauge and a new oil pressure sending unit but I dont see the need for both?
Because I like knowing the sudden loss of oil pressure will show up as a bright red light in front of me while I don't always have my eyes on the oil pressure gauge.

Carl H... these adapters were custom threaded/tapered in such a way that both NPT and BSPT threads will work in any of the holes. The NPT will snug up after about 4 full threads while the BPST goes probably 6 or 7 full threads. Should work for both applications. If you buy it and it doesn't work, hipro offers a rull refund.


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