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Old 08-30-2010, 03:15 AM   #1
JDMFLCL
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Default Are Sandwich Plates safe?

My tuner said that I should avoid them like the plague. I want to run an oil pressure and oil temp. gauge setup w/ their associative senders. As I see it now, I have the following options:

1.) Get a galley plug, SS line, 1/8npt T fitting and remotely mount all of the senders off the rear galley plug.

2.) Get a WRXTRA sandwich adapter and plug the senders in.

Help? Which route should I go with? The gauges in question are 52mm Prosports.
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Old 08-30-2010, 03:43 AM   #2
Ryan23
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Quote:
Originally Posted by JDMFLCL View Post
My tuner said that I should avoid them like the plague. I want to run an oil pressure and oil temp. gauge setup w/ their associative senders. As I see it now, I have the following options:

1.) Get a galley plug, SS line, 1/8npt T fitting and remotely mount all of the senders off the rear galley plug.

2.) Get a WRXTRA sandwich adapter and plug the senders in.

Help? Which route should I go with? The gauges in question are 52mm Prosports.
I run a Mocal sandwich plate adapter for the oil coolers on all three of my cars. 3+ years (GT-R even longer) and not a leak to be found. Did he cite any specific reasons why you should "avoid them like the plague"?

As for senders though, on the Subie, I ran the oil pressure sender in the stock oil pressure up near the alternator. I can't recall where I put my oil temp sender, I think it's under the TMIC where you are referencing in option "1".

Ryan
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Old 08-30-2010, 10:49 AM   #3
JDMFLCL
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Default

How hard is it to get to the galley plug under the alternator? If possible, I'd rather run dual galley plug setups rather than a sandwich plate. Was there room for the sender under the Alt, or did you need to remotely relocate it?
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Old 08-30-2010, 02:35 PM   #4
El Guapo
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i opted for the top galley plug, i got nervous thinking about lowering the oil filter to expose itself to hitting low objects. especially when i plan to lower my car a tad
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Old 08-30-2010, 02:45 PM   #5
krauser2
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subaru uses an oil galley with their oil pressure guage.

food for thought
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Old 08-30-2010, 02:50 PM   #6
dangerousatom
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I have run sandwitch plates on all my Subys with no problems and they have all been lowered too, but I do remove the oil/water cooler

91 Legacy SS
02 RS w/STi swap
97 OBS w/WRX swap

.....I would also like to know why your tunner says to avoid.....?
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Old 08-30-2010, 03:56 PM   #7
Vlad
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I'm picking up under the intercooler. I installed the sensor right there, on the plug, without a braided stailess relocation hose.
Underneath the shiny stainless braid is a tube, made of polyethilene or some other common plastic flexible material.

I doubt that many makers of stainless braided extension hoses have commssioned a 10 year study to determine how long their plastic tube can whitstand really hot oil, under signifficant pressures, while at the same time residing under the hood and seeing temperature variations in the winter from freezing to above water boiling...

If the tube inside the stainless would fail, it won't take the oil pump long time at all to spit out most oil from inside the system. This is why Subaru did not use such, but a gallery.
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Old 08-30-2010, 04:28 PM   #8
dangerousatom
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Modifications always need appropriate maintenance and monitoring. So every time you change your oil you check the hoses and what ever else may need looking at. Its common sense to do such things. I see no fear in a sandwich plate or under car oil hoses near an exhaust manifold with mindful and proper care. If someone cant do these things they should not be modding their car IMO in the first place.

Oh and you putting on an oil pressure gauge so you see a sudden drop if there is a leek?!?
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Old 08-30-2010, 11:09 PM   #9
Vlad
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First, you won't see the condition of the tube inside a steel braid.

Second, depending on what you're doing when/if the tube inside the braid bursts, by the time you take your eyes off the road because..... you hear something.. and look at the gauge, your pressure can be already down, to put it mildly.
I've worked in a garage and many years ago I've witnessed an apprentice mechanic that forgot a cap in the lubrication system off. Started the car, it emptied the oil in the pan on the garage floor as he drove about 2 car lengths, which is how long it took him to realize something was wrong. This was not on a Subaru.
Now that I'm thinking about it, he forgot to replace the filter that he removed and in that car the filter was installed on top of the engine. He put the hood down and drove away.
Considering the diameter difference, ok it may take 6 car lengths to empty the pan if the hose bursts. This is just a guess, of course.
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Old 08-31-2010, 04:00 PM   #10
wrxl98
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Default

Quote:
Originally Posted by JDMFLCL View Post
My tuner said that I should avoid them like the plague. I want to run an oil pressure and oil temp. gauge setup w/ their associative senders. As I see it now, I have the following options:

1.) Get a galley plug, SS line, 1/8npt T fitting and remotely mount all of the senders off the rear galley plug....................
If your sending units have NPT threads you will need an adapter of some sort. McMaster Carr sells brass ones under PN 4860K141. They probably sell NPT tees also but I could only find them there in steel.

There is also this product which would eliminate the need for a tee in addition to an adapter if you plan to keep the factory oil pressure sensor or use both temperature and pressure senders:

http://www.stealthmodeperformance.co...blockfit.shtml


Here is a gauge install article Autometer did for an '07 STI:

http://www.autometer.com/techinfo_ne...spx?pg=1&aid=7

Some people claim that not installing the sensors remotely can result in fitting failures in high-rpm engines. Another consideration is the amount of room available to install your sender(s) at the factory sender location (or any other location you might want to use). The Autometer braided steel lines normally sell for ~$40 on eBay but there are some for sale now for ~$22.

So you need to consider advantages and disadvantages of the different install options and decide what's best for you.
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Old 08-31-2010, 07:50 PM   #11
TXwrxWagon
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sandwich adapter, 25K no problems thanks for reminding me to install my prosport sender while the car i sin the air...

Rob
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