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I'm looking for alternatives to fitting adapter plates to my engine-bay in order to install my aftermarket gauges' sensor set. Currently the engine-bay looks completely "stock" & I'd like to keep it that way - fitting an anodized blue Racing Beat sandwich plate & in-line water temp adapter doesn't really follow this ethos as tidy as they look.

Has anyone any suggestions on where to subtly mount (even if it means chopping/cutting/drilling etc) a...

1) Water temp sensor so that it's on the "always hot" side of the thermostat & getting the most accurate reading of the water temp - is there somewhere for example that's on the thermostat housing that's ok for tapping a hole for the sensor there?

2) Oil temp sensor so that it's reading the hottest the oil will ever be? Is this the sump or oil filter housing?

3) Oil pressure sensor so that it's going to be the most accurate? Maybe the oil filter housing?

Why?

These will take care of the oil pressure and temp part of the equation:

https://www.rx8performance.com/produ...or-banjo-bolts

1. Once the engine is up to temp, the water temp will read the same no matter where it is placed. Using a hose adapter is the best option.
2. Oil temp will read the same as well, I have read from the pan, the outlet hose, and the oil filter pedestal and it's the same unless you are sitting at idle, then it reads hotter in the pan.
3. Oil filter housing or on the lines is fine. You can drill and tap a banjo bolt yourself but using a filter pedestal plate makes the most sense.

Have to disagree; a banjo bolt is cheaper and easier to access than a pedestal plate

An oil pedestal adapter is goo for oil temp and presure sensors. Other thann that the banjo is easier like it was said above.

I'm using the RX8performance banjo bolts for both oil temperature and pressure. I have my pressure sender on the oil line coming out of the engine and the temperature sender on the other end of that same line, where it goes into the cooler.

I'm using a Raving Beat water temp sender adapter, but after receiving it I really wish I had just cobbled something together at Menard's instead. I did spend some time looking at the thermostat housing, trying to find a place to tap the temp sender directly in it. In the end, I decided there just wasn't a good spot I was comfortable using, given my limited tools for such work. Also, my temp sender is really long. I worried it would interfere with the thermostat or flow.