I got an oil pressure gauge for my S and have been racking my brain for a good day now tyring to figure out how to get the d@#n thing installed. If anyone has done this and would provide info I would greatly appreciate it. Thanks in advance.

 

https://www.s2ki.com/forums/index.php?showt...l=gauge++sender

https://www.s2ki.com/forums/index.php?showtopic=99530

And here's the result of a search for gauge senders:
https://www.s2ki.com/forums/index.php?act=S...gauge+%2Bsender

 

Also, you can put a brass T fitting where the stock oil pressure sender is located and attach your new one and the factory one back to it. This is what I did. Except I also had to put an oil feed line to my turbo there also. No leaks and works like a charm if you seal everything up good with teflon thread paste. Just to let you know also, oil pressure (when the car is completely warmed up) is around 70-76 psi (at normal driving speeds, around 22 psi at idle) and will drop to about 60 psi when you go into VTEC. This is normal due to oil being transferred to the VTEC control valve to operate it. So don't be alarmed.

 

I'm glad that you brought this up. Brass fittings are best, especially when going into the block. Aluminum fittings going into the block has a high risk of cracking under the tremendous vibrations they are subjected to there.
I would even go one more suggestion for insurance: I would recommend using flex tubing to remotely mount any sending units, including the stock one. Put any "T's" at the end of the flex tubing for mounting the stock and aftermarket senders. This will reduce the amount of weight that "hangs" off that first fitting that goes into the engine. It will be NO FUN if that fitting were to snap off, leaving the thread in the block and oil puking out at an astonishing rate. The "T" for any supercharger or turbo oil lines is no problem. That is only a single addition with its own flex tubing going off from it.

 

thanks guys, i really appreciate the help.

 

what size brass t fitting to you use?

 

I can't remember positively but I "think" it's an NPT fitting. Best thing to do is to take off your stock oil pressure sender, take it to the shop that sells such things and compare. Brass fittings of this kind tend to have a slight taper, so they seal tighter as you screw them in tighter.

 

If you want to do it right, you're best off buying the adapters. The threads for your stock sender are 1/8" 28 BSP (British Straight Pipe). All other threads similar in size will be 1/8" NPT. So if you pick up a braided hose (from a NOS application, or other pneumatic/hydraulic setup), it will likely have 1/8" NPT ends.

Thread one adapter in one end to attach it to the block where the sender was. On the other end, screw in an 1/8" NPT female tee. You can use the other BSP adapter to attach the oil pressure switch. The third outlet on the tee can be used to mount your oil pressure sender which will likely have a 1/8" NPT fitting.

You can order the BSP to NPT adapters at any Napa dealer. They come in sets of two adapters, so you can complete this setup. I got the rest of my plumbing at Jegs (a local speed shop in the Columbus area), but you can get it from Jegs online, Summit Racing, or probably a dozen other places.