external oil cooler

[chaggard27]

Ok guys I am doing a build for a local guy and he wants to run an external oil cooler off of the OFH which has been plumbed for it except for one problem that I think we may have. One is that there is no place to put the oil pressure sensor and also there is a large plug that is missing. I was planning on making a custom plug that is threaded in the middle for the sensor to go onto. What do you guys thing would be the best way of doing this?? Here are the pics

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[banishedmunk]

most autometer oil pressure gauges will come with the fitting you need if that is what he plans to use other wise your local advance will have the fitting you need, or take the allen plug from another filter housing drill and tap it for 1/8 NPT for the sensor.

 

[mike96]

why not just replace the factory oil pressure sensor with the sensor for the oil pressure gauger you are planing on using... also i have heard that the plug that goes in the OFH is a special thread so you cant just use just any NPT plug. you should be able to run to the just yard and pull one from just about any Mitsubishi i would imagine. if not i have an extra one lying around i might be willing to part with.

 

[Ludachris]

I would try and use the stock location. If you aren't able to or don't want to, another option would be to add an adapter for the sensor in between the AN fitting coming off the oil filter housing and the line connecting it to the cooler.

That plug you are missing is the port where I supply my turbo with oil. You can just plug it if you want. I'm pretty sure mine was plugged originally.

 

[chaggard27]

That is what I was thinking is that it was just a plug that normally goes there. Where would the sensor normally go though? that is what I am wondering. There is no spot on it where I see if could go except for one plug that looks to be the right size. It is just a matter of removing that plug and then like you guys said put one in the other hole. I believe that would work otherwise I will get the plug that goes in the larger hole and tap it for the sensor...but then how will i install the plug?? thats where it gets complicated.

Also with a GT35R would I want to feed it off the head or off the OFH? I was planning on off the head but just getting a second opinion...even if i am opening a can of worms with this one

Also check out the blog
http://www.dsmtuners.com/forums/blogs/mario009/

 

[Ludachris]

That is what I was thinking is that it was just a plug that normally goes there. Where would the sensor normally go though? that is what I am wondering. There is no spot on it where I see if could go except for one plug that looks to be the right size. It is just a matter of removing that plug and then like you guys said put one in the other hole. I believe that would work otherwise I will get the plug that goes in the larger hole and tap it for the sensor...but then how will i install the plug?? thats where it gets complicated.

Also with a GT35R would I want to feed it off the head or off the OFH? I was planning on off the head but just getting a second opinion...even if i am opening a can of worms with this one

Also check out the blog
http://www.dsmtuners.com/forums/blogs/mario009/

I believe the only factory sensor for oil on the 1g is a temp sensor, which is already attached to the housing in your photo. You have to add the sensor for oil pressure somewhere. For the life of me, I can't remember where I plugged mine in. I think I might have added a tee fitting where the factory temp sensor goes and put both the temp and pressure sensor in that one spot - though I probably should have done what I recommended to you, buy an adapter to put inline with the oil line to the cooler. If I can remember to do so, I'll check when I get home.

 

[chaggard27]

I thought that the 1g did come with an oil pressure sensor in the gauge cluster...I could have sworn I had removed a few from a 1g in a junk yard...the sensor of course...but could have been that it was added then. I will let him know and see if he wants an external one or go without. Thanks for the input.

 

[hhuricane]

The 2 sensors one the 1g are the pressure switch for the light and the sender for the gauge. There is no temp gauge for the oil.

 

[Ludachris]

I thought that the 1g did come with an oil pressure sensor in the gauge cluster...I could have sworn I had removed a few from a 1g in a junk yard...the sensor of course...but could have been that it was added then. I will let him know and see if he wants an external one or go without. Thanks for the input.

Here's the stock 1g cluster. There might be an oil pressure warning light, but no gauge.

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[chaggard27]

I am talking about the stock oil pressure sender unit...not an aftermarket one. So where would it hook into on a 1g?

Isn't this gauge for the oil pressure??

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[Ludachris]

I am talking about the stock oil pressure sender unit...not an aftermarket one. So where would it hook into on a 1g?

Isn't this gauge for the oil pressure??

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I'm sorry, I got temp and pressure mixed up. There is a factory pressure sender, not a temp sender. The sender for that is facing forward on the housing (acorn shaped sender). It's the oil temp sensor/gauge that it doesn't have, which is what I added. My fault.

 

[chaggard27]

No problem...thought i was wrong since you are only THE FOUNDER!! . So do you have a pic of where that sender unit hooks in? That way I can have a look

 

[Ludachris]

No problem...thought i was wrong since you are only THE FOUNDER!! . So do you have a pic of where that sender unit hooks in? That way I can have a look

No recent pics... I'll have to check when I get home.

 

[mario009]

That is what I was thinking is that it was just a plug that normally goes there. Where would the sensor normally go though? that is what I am wondering. There is no spot on it where I see if could go except for one plug that looks to be the right size. It is just a matter of removing that plug and then like you guys said put one in the other hole. I believe that would work otherwise I will get the plug that goes in the larger hole and tap it for the sensor...but then how will i install the plug?? thats where it gets complicated.

Also with a GT35R would I want to feed it off the head or off the OFH? I was planning on off the head but just getting a second opinion...even if i am opening a can of worms with this one

Also check out the blog
http://www.dsmtuners.com/forums/blogs/mario009/

I did some research and most people run it from the ofh like we talked about last night. The thing that confuses me though is where the oil pressure gauge would tap into.

 

[bane3d]

I saw this on RRE site a while ago. Does this help?

d

 

[chaggard27]

Yeah I know where to put it it is just getting the plug made that will convert the large hole into a 1/8 npt threaded hole for the sending unit. Has anyone made one of those or do they currently exist? I was just going to get the plug froma junk yard, drill the hole, and then tap it...the hard part will be getting it installed unless the allen keyhole is larger than the 1/8 npt hole...in that case it will be a sinche

 

[Ludachris]

Come to think of it, when I moved to a FP turbo I started feeding the turbo from the head. I'm pretty sure I used the port for the old turbo oil feed and used that for the new oil temp sensor.... man, I can't believe I can't remember this stuff. I'm really getting old, my memory is crap.

I've actually been tossing around the idea of using a forward facing oil filter housing and using a filter relocation kit. I could then run the lines from the housing to the filter, to the cooler, then back to the housing... or something like that. If you do that then there really is no need for this type of oil filter housing. And I can then easily change the oil filter without it getting all over the damn sub frame brace.

 

[chaggard27]

Yes the dirty oily sub frame brace...gotta love it. I think I will just tap the plug that goes there and have the sender unit running off of there. That should take care of it. I do remember an oil pump blowing up in my face once...there was a lot of oil all over the whole subframe at that point and even some dark colored stains in my undershorts

 

[TurboAnything]

The '90 oil filter housing has 2 pressure holes. Both are 1/8 ntp thread one faces forward with a small sending unit that is for the dummy light. The other faces down and and has a large sending unit for the pressure gauge. The large open hole that is facing forward is normally plugged. But when you run oil to a turbo from the housing you remove it and put a adapter fitting in, that is missing in that pic .

 

[kawgomoo]

why would you pull oil for the turbo off the filter housing?

I mean seriously, why?

Its not clean oil, {any cleaner than anywhere else} the pressure is too high and the oil line has to run behind all your turbo crap making it heat soak that much more.

so unless i am horribly missing something here...why!!!?!?!

 

[Ludachris]

why would you pull oil for the turbo off the filter housing?

I mean seriously, why?

Its not clean oil, {any cleaner than anywhere else} the pressure is too high and the oil line has to run behind all your turbo crap making it heat soak that much more.

so unless i am horribly missing something here...why!!!?!?!

It's recommended by some turbo manufacturers for journal bearing turbos.

 

[99gst_racer]

the pressure is too high and the oil line has to run behind all your turbo crap making it heat soak that much more.

Many of us have taken steps to reduce the oil pressure measured at the filter housing to that of an acceptable level for a turbo's CHRA. It's not always too high on every 4G engine. And you can route the feed line in front of the turbo/manifold just as easily. I've fed many turbos from the filter housing over the years, and I've never ran the feed line behind the turbo or manifold. I've also never killed a turbo from over-oiling.

 

[chaggard27]

So with the GT35R the head should be good enough? Or should I run a line to the OFH? I have an inline oil filter and I am not worried about pressure either but with the high boost will that effect the oiling fron the head with the pressure in the head?

 

[Ludachris]

So with the GT35R the head should be good enough? Or should I run a line to the OFH? I have an inline oil filter and I am not worried about pressure either but with the high boost will that effect the oiling fron the head with the pressure in the head?

Go with the turbo manufacturer recommendation. Most of the ball bearing turbos that I know of are suggested to be fed from the head.

 

[chaggard27]

Sounds good to me. Makes it a lot easier to get to as well and less line to make...I hate making AN fittings...well I guess my fingers hate it more than I do