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Old 01-18-2009, 07:11 PM   #1
aakrusen
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Default Oil pressure and temp at oil filter

I was looking into adding the autometer oil temp and oil pressure gauges and I was going to buy one of the adapter plates that goes between the oil filter and the engine. Can I get my temp and pressure readings from this area and have it be accurate? Are there easy/better places to get this info from my engine? Is there anything else I should be considering when doing this project?
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Old 01-18-2009, 07:19 PM   #2
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Are you planning on running an oil cooler? (my racecar has the sandwich....honda) If you are, then it'a an easy way to run everything into a single adapter at first glance. But you need to look at what it's going to take to get the sensors in and then the whole sandwich in place. I don't know how the STi is, but I look at my LGT and have no interest in this. The other consideration is that for oil pressure, you're going to want it on the cool side....just before going into the block. For oil temp, you want it coming from the engine....not the cooler.

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Old 01-18-2009, 07:26 PM   #3
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What he said^^^^^ I have the sandwich adapter with both oil temp and press located there. The pressure reads comparably to what others report but the temp always reads what seems like a low reading. Other places to consider for tapping are the oil gallery plug on the top back of the block under the IC, and the stock oil press switch location on the top front of the block behind the alternator.
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Old 01-18-2009, 07:33 PM   #4
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Quote:
Originally Posted by BluScubi View Post
What he said^^^^^ I have the sandwich adapter with both oil temp and press located there. The pressure reads comparably to what others report but the temp always reads what seems like a low reading. Other places to consider for tapping are the oil gallery plug on the top back of the block under the IC, and the stock oil press switch location on the top front of the block behind the alternator.
Do you know where I could find a pic or diagram of these areas. Also, I need the thread pitch and stuff for adapters in these areas. I was going to spend $40 on the sandwich adapter or I could spend $40 on installation components in these areas. Is it worth the headache to tap into these areas or should I just do the sandwich? I may run an oil cooler down the road but if I had to answer now I would say no.
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Old 01-18-2009, 07:58 PM   #5
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Go to the top of this forum and read the Unabomber's Manifesto. Inside is the Gauge FAQ, where all things will come to light.
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Old 01-18-2009, 10:29 PM   #6
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The galley plug mentioned is under the passenger side of the alternator. Look down there with a flash light and you'll see the stock oil pressure sender. Remove that (it does NOT give you a low oil pressure light disconnect) and screw in a sensor there.

You will need an adapter to change the threads but I dont know the numbers off the top of my head. Search for one on aftermarket part websites like fastwrx.com or whatever.

There is another galley plug directly behind it on the opposite side with a plug in it. Its underneath the front passenger corner of the intercooler. They also make relocation SS braid lines for those fittings to make them more accessible....
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Old 01-18-2009, 11:26 PM   #7
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Quote:
Originally Posted by aakrusen View Post
Do you know where I could find a pic or diagram of these areas. Also, I need the thread pitch and stuff for adapters in these areas. I was going to spend $40 on the sandwich adapter or I could spend $40 on installation components in these areas. Is it worth the headache to tap into these areas or should I just do the sandwich? I may run an oil cooler down the road but if I had to answer now I would say no.
This is my sandwich plate set up, easy install


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Old 01-19-2009, 12:12 AM   #8
aakrusen
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Quote:
Originally Posted by Micky View Post
This is my sandwich plate set up, easy install


What do you have tapped into the sandwhich?
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Old 01-19-2009, 02:52 AM   #9
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Quote:
Originally Posted by aakrusen View Post
What do you have tapped into the sandwhich?
Oil temperature and pressure, for Defi gauges
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Old 01-19-2009, 07:43 AM   #10
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Quote:
Originally Posted by Micky View Post
This is my sandwich plate set up, easy install


That looks pretty good. I tried a sandwich adapter on mine but there was no way to make it fit. The people I bought it from told me I had to bend something out of the way, however it was hitting an oil line, which I'm not trying to bend.

I had a different sandwich adapter though....
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