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Old 11-07-2016, 05:27 AM
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tassievteclude tassievteclude is offline
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Re: :::Tassievteclude::: Tassie's 1994 JDM BB1

Finally got around to installing some gauges.

Sorry for the glare. On the left is the water temp gauge I had before, middle is oil pressure and right is oil temp. Had a little troubleshooting to do after installing them, turns out if the ground wire slips off the back of the gauge it won't work properly



I went with the sandwich plate idea, I never liked the thought of the t-piece off the stock sender, too much weight hanging off too small a thread. Since there is a rubber gasket between the sandwich plate and the block, I had to run an extra ground wire too.



I found it interesting to see what the oil pressure gauge does while the car is warming up (idling in the driveway at least). I run 15W-50 full synthetic oil which I didn't think was THAT thick, but the gauge peaked to about 75psi at idle on startup. Within a minute or so it dropped to 25psi at idle but hovered there until I shut the car off 10 minutes later. With a little bit of a rev (no more than 2500rpm) it'd pop back up to 80psi. Even when the water temp was at around 80C (~180F) meaning the thermostat was open, the oil temp gauge still hadn't moved. It only budged off minimum right before I shut the car off. Since the oil doesn't reach its designated viscosity until 100C (I hope I used the right term there) it still had a bit of thinning out to go. It goes to show how little of the picture a water temp gauge alone is giving, and how long it takes for engine oil to even start doing its job properly. I feel bad for mainly driving for short stints in the daily for so many years.
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