[Brainstorm]

I'm installing an oil pressure gauge. I haven't decided if I'm gonna keep the oil pressure switch in via teh use of a "T" or just plug my gauge right in it's place. What I want to know is, what is teh size of the fitting that the swicth plugs into. I think my Autometer gauge comes with a 1/8" NPT. Will I need an adapter (1/4" to 1/8")?

 

[javierb14]

autometer makes an adapter. keep the switch, those T fittings and adapters are cheap and readily available at ACE Hardware.

 

[PatScottAKA99XE]

You should have searched, but here ya go:
http://www.nissanforums.com/showthread.php?s=&threadid=3141&highlight=oil+pressure+gauge
http://www.nissanforums.com/showthread.php?s=&threadid=2073&highlight=oil+pressure+gauge
http://www.nissanforums.com/showthread.php?s=&threadid=1898&highlight=oil+pressure+gauge
http://www.nissanforums.com/showthread.php?s=&threadid=327&highlight=oil+pressure+gauge

I just ordered the Greddy oil filter block(one of the links above) looks like its a super sweet way to do it. If it works as advertized, I would recomend to everyone, use that instead of a "T", unless you want to run and oil cooler(info in one of the above links). Dont worry I tell you guys all about the Greddy part
I think it is 1/8" BSPT as stated in one of the links, not 1/8"NPT as I originally thought. Most of the hardware stuff is 1/8"NPT so if in fact it is 1/8"NPT the hardware stuff wont work.