Oil Pressure + Temperature Gauge Discussion
Thread Starter
Joined: May 2007
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From: @ a track near you
So, I'm planning on putting some gauges in my track car for next season and had a few questions regarding tapping into the oil system. I'm considering doing the job myself to save some cash, since the local shops around here are asking for like $500-700 to install five gauges. 
Two things:
First, I've seen a few reports here on EvoM of oil leaking due to vibration when running sending units connected to the OEM filter adapter:


and running these plugs:


Can anyone comment on this? I was considering maybe running an AMS oil sending line like this which appears to prevent the issue of vibration working your sensor out of the adapter:

UPDATE: This thread has quite a bit of info https://www.evolutionm.net/forums/ev...e-senders.html looks like this works so long as the oil pressure sender is running off of the AMS pressure sending unit (to reduce vibration) and the bolts use Permatex and NOT teflon tape. Teflon tape will leak, can't handle the temperature and is probably not something you want floating around your oil system and gumming up your oil filter anyway.


Second, I was considering running a Prosport oil filter adapter (the oil gauges are both Prosport anyway), but don't really like the idea of my oil filter hanging down any lower than it does already.

I run shorty filters, but this plate pushes the filter down another, what, 1.5"? I'm not comfortable with that, especially since the tracks out here have ruts and **** in them once you get past the runoff.
What are the, 'best practices' for this job?
I don't cut corners, so I'm going to pay the money and do it right. I abuse my IX on the track, but pamper the hell out of it... if that makes any sense.

Two things:
First, I've seen a few reports here on EvoM of oil leaking due to vibration when running sending units connected to the OEM filter adapter:

and running these plugs:


Can anyone comment on this? I was considering maybe running an AMS oil sending line like this which appears to prevent the issue of vibration working your sensor out of the adapter:

UPDATE: This thread has quite a bit of info https://www.evolutionm.net/forums/ev...e-senders.html looks like this works so long as the oil pressure sender is running off of the AMS pressure sending unit (to reduce vibration) and the bolts use Permatex and NOT teflon tape. Teflon tape will leak, can't handle the temperature and is probably not something you want floating around your oil system and gumming up your oil filter anyway.
Second, I was considering running a Prosport oil filter adapter (the oil gauges are both Prosport anyway), but don't really like the idea of my oil filter hanging down any lower than it does already.

I run shorty filters, but this plate pushes the filter down another, what, 1.5"? I'm not comfortable with that, especially since the tracks out here have ruts and **** in them once you get past the runoff.
What are the, 'best practices' for this job?
I don't cut corners, so I'm going to pay the money and do it right. I abuse my IX on the track, but pamper the hell out of it... if that makes any sense.
Last edited by golgo13; Mar 18, 2013 at 02:01 PM.
Huh! I have an oil pressure gauge, not installed by me, that sometimes reads weird. My oil levels are good.. But I'd like to actually take a look at how it was installed. Hopefully I can learn something here too!
Evolving Member
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From: Gurnee, IL but currently in 29 Palms, CA
I've been running my Oil Pressure sensor off my filter housing on my 2G for about....hmmmmm 7 years now? and i have never had a problem with it leaking. Actually the sensor went out about 4 years ago, replaced it and just added new teflon tape and still no leaks. It might just possibly be a hit or miss sort of thing ya know? just my .02 cents.
I'll be installing Prosport Halo series Boost, Oil Temp, & Oil Pressure in my Evo this week...I'll update my experience/results. A few things I have been thinking about ever since i bought them though is how their adaptor drops the filter down considerably lower. I just had my car on the lift yesterday & noted how low the filter sits already. With the adaptor, it will be close to being the lowest point under the car - not very comfortable with that! Secondly, good point on not using Teflon tape for the sensor threads.. I don't think it'll seal for long..
For sensor location, what's the other option? To tap into the stock oil filter housing? The amount of work involved with that I think would sway me to the easier option of using the adaptor. My car isn't lowered much (Bilstein/GTWorx), so I'm hoping I'll do fine. I'll take a before/after measurement of the ground clearance for the filter.
For sensor location, what's the other option? To tap into the stock oil filter housing? The amount of work involved with that I think would sway me to the easier option of using the adaptor. My car isn't lowered much (Bilstein/GTWorx), so I'm hoping I'll do fine. I'll take a before/after measurement of the ground clearance for the filter.
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Thread Starter
Joined: May 2007
Posts: 3,619
Likes: 29
From: @ a track near you
I'll be installing Prosport Halo series Boost, Oil Temp, & Oil Pressure in my Evo this week...I'll update my experience/results. A few things I have been thinking about ever since i bought them though is how their adaptor drops the filter down considerably lower. I just had my car on the lift yesterday & noted how low the filter sits already. With the adaptor, it will be close to being the lowest point under the car - not very comfortable with that! Secondly, good point on not using Teflon tape for the sensor threads.. I don't think it'll seal for long..
For sensor location, what's the other option? To tap into the stock oil filter housing? The amount of work involved with that I think would sway me to the easier option of using the adaptor. My car isn't lowered much (Bilstein/GTWorx), so I'm hoping I'll do fine. I'll take a before/after measurement of the ground clearance for the filter.
For sensor location, what's the other option? To tap into the stock oil filter housing? The amount of work involved with that I think would sway me to the easier option of using the adaptor. My car isn't lowered much (Bilstein/GTWorx), so I'm hoping I'll do fine. I'll take a before/after measurement of the ground clearance for the filter.
Take a look at this thread: https://www.evolutionm.net/forums/ev...e-senders.html
It gives a GREAT step-by-step install.
I did some searching on Google and I found quite a few threads (NASIOC has a few good ones) where people were having issues with the adapter sandwich leaking oil.
It's almost a toss-up on which is less risky AFAIK. I'm thinking that if you remove one of the variables that can cause failure (in this case the sandwich adapter), your risks go down. I'm leaning more and more towards using the OEM plug locations on the filter housing and sealing them with high temp Permatex.
Evolving Member
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From: Gurnee, IL but currently in 29 Palms, CA
No time to read each post, but you're on the right track. You should get the AMS oil pressure sender relocation hose (which comes with one of the fittings from 42 Draft), another fitting from 42 draft (or see if AMS will sell you one), and Autometer Oil pressure/temp gauges. Anything more expensive than those is a waste. I ran them all season with zero issue, and have had zero issues with Autometer over the last 10 years.
I have used both the sandwich adapter and now the stock plug locations. i run the beatrush undetray on my car so the filter had a little protection from being ripped off. my tuner however had another customer that ripped his off so i decided to ditch the sandwich...i have had it in the stock plugs now for about 4 years and have not had any issues what so ever. i have the defi gauges and the read consistant. if you are concerned about the amount of work it will take to use the stock locations it is not much at all. you are already down there you might as well do it right. plus the adapter for the holes are cheaper then a sandwich adapter, and much cheaper then a new motor if you happen to rip your filter off on something. if you must use the sandwich adapter then just be careful. it does sit lower but not a ton.
I used the AMS relocation line and hooked it up in place of the factory oil pressure sensor. I put a t or y fitting there to hook up my factory oil pressure sensor and my gauge sensor and zip tied it to the firewall so no vibrations. I mainly did this because I also have an Fp black and have the oil feed line in the oil filter housing fitting. The other goes to the oil temp gauge sensor which in that spot reads more accurate than the pan.







