Oil cooler help

So I decided to take the plunge and get a oil cooler. Because of the substantial discount I am going with a mishimoto oil cooler. The question is where to put it. I guess the only 2 places I can think of would be the right side airscoop with ducting or something like the SOS set up in the wheelwell. Any suggestions or help would be helpful.

yes I have alsways wanted one and if you can find the smallest one they sell that can fit behind the airdam since the passengerside is for show it found be effective in that spot, the pics of the SOS versions shows it located in another spot possible cuz it was to big to fit in the airdam ya know. good luck post some pics as I will be doing this some day LOL

Check out my progress thread there's lot of info on mine in there, I'd maybe built 4 of these before settling on the design i did. I originally had the SOS oil cooler but changed it up for something with better flow-through and at the same time ditchched the push-on barbed fittings. My design was result of it needing to fit cleanly with the areo and having the most direct plumbing for the accusump increasing capacity and efficiency over the SOS unit were also major goals. I'm happy with how my came out; but its design requires a center exit exhaust which limits my options of putting something quieter on the car as needed to run at tracks with noise restrictions like Laguna Seca etc.

I know a few people that run a long thin core just behind the passenger vent. its a good spot and they get good results, I would have maybe done it too had I not been using a trunk mounted accusump that needs all accompanying sensors and check valves. Also, When I mocked one up in that spot I also could't figure out how to correctly isolate the core from the chassis, which is a really really good idea if you run heavy spring rates like most track cars do. You can come over anytime and poke around my set up to get some ideas and discuss what i learned when doing mine. Ill be in the garage all weekend.

William, why not mount your oil cooler further forward toward the rear tire for traditional exhaust clearance, or mount it longitudinally with your ducting?

that's an awesome location but... your center exhaust most people are dual ya know so that space is not avail for normal applications

very nice job I like it a lot.

stuntman said:

William, why not mount your oil cooler further forward toward the rear tire for traditional exhaust clearance, or mount it longitudinally with your ducting?

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With the R comps it throws up all sorts of rocks and where its mounted is right in the line of fire. The ducting doubles as a rock shield as well as it seals the flow; The 19 row is the biggest core I would run with the OEM oil pump.

illwillem said:

With the R comps it throws up all sorts of rocks and where its mounted is right in the line of fire. The ducting doubles as a rock shield as well as it seals the flow; The 19 row is the biggest core I would run with the OEM oil pump.

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I can confirm this. I had to fab some louvered shielding to keep my SOS cooler relatively stone free. And that's considering that the wheel well liner is there as a protective barrier as well.

I like illwillem placement. But even considering the lack of optimal placement (unit performance wise), it's still a really effective unit.

If I ever make my NSX into a "race kaa," I'd mount it like illwillem's but with a NACA duct connected to full length underbody tray (just thinking out loud).

illwillem said:

With the R comps it throws up all sorts of rocks and where its mounted is right in the line of fire. The ducting doubles as a rock shield as well as it seals the flow; The 19 row is the biggest core I would run with the OEM oil pump.

Click to expand...

So why can't you mount it further forward or rotate it 90* to be longitudinally mounted instead of transversely?

The side vend doesn't get a tremendous amount of air flow. I say this since I have my cooler mounted behind the vent.
I am considering adding a lip to the vent to increase the air flow.

I suspect with the duct's air flow is further reduced. But you could put a puller behind the cooler and that may work well?

I am using a Setrab 13 row cooler this was the largest cooler I could fit.
I would like to put a puller fan behind it but don't have the space.


I have a spare Comptech Sandwich plate adapter with AN-10 fittings.

I have have the downforce cf airs oops so I assume there is a slight increase of airflow. Right now after a 30 min session my oil temps are about 280 (measured from oil pan)

did is you remove the alternator fan? My place is to seal off that area to get the most ram air that I can and then try to make a exhaust duct

how did you route the oil lines? Under the engine to the filter?
if you want to sell sandwich plate I'll buy it since I will need it.

Thanx for for all the info

nsxnut said:

The side vend doesn't get a tremendous amount of air flow. I say this since I have my cooler mounted behind the vent.
I am considering adding a lip to the vent to increase the air flow.

I suspect with the duct's air flow is further reduced. But you could put a puller behind the cooler and that may work well?

I am using a Setrab 13 row cooler this was the largest cooler I could fit.
I would like to put a puller fan behind it but don't have the space.


I have a spare Comptech Sandwich plate adapter with AN-10 fittings.

Click to expand...

Here's mine. Hope this help! Proper ducting is important!






13 Row Setrab. -10AN fittings with the SOS sandwich plate. What you don't see is the fender liner back in place. I'm of the opinion that the air pressure around the wheel is high pressure therefore the fender liner helps the air flow go out the back side of the fender. Wish I had more concrete data to provide but I can't afford all the expensive analysis!

Btw.. If I didn't have the CTSC in the way i'd have left the engine bay fan in there and have it connected to a thermal switch monitoring the oil temp. If oil got hot > fan turns on > more airflow sucked in from side vent theoretically.

Ryu, this is exactly how I would do it. Great setup. I wouldn't bother with an on/off switch for an extractor fan; just leave it running full time engine is running with low amp draw. Great job and it is scary how much we think alike.

Ponyboy said:

I can confirm this. I had to fab some louvered shielding to keep my SOS cooler relatively stone free. And that's considering that the wheel well liner is there as a protective barrier as well.

I like illwillem placement. But even considering the lack of optimal placement (unit performance wise), it's still a really effective unit.

If I ever make my NSX into a "race kaa," I'd mount it like illwillem's but with a NACA duct connected to full length underbody tray (just thinking out loud).

Click to expand...

I have this exact thing half built already, there's was just not enough room to have a scavenging duct and plumbing route to a cooler efficiently. I spent quite a time mocking it up and have extra cores and AN fittings. Theirs literally >2" of clearance where it would make since to duct from and a couple of 90* angles and suspension arcs you have to clear, not to mention stainless steel tubing radius limitations. Im sure it could be done if you really wanted it that way but after I started building it i realized that I was attaching a lot of weight to the diffuser/engine cover and it was no longer easy to take on and off at the track to get too things quickly. Thats why I settled on a more modular ducting system that I caould get into place and leave.

stuntman said:

So why can't you mount it further forward or rotate it 90* to be longitudinally mounted instead of transversely?

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i suppose you could if you wanted too, but since I have the center exits i didnt need too. Im having an old titech exhaust chopped up and made into laguna spec. And just from memore you may run into a problem with exhaust clearance and longitudinal mounting. There is nothing substantial to attach the core too till about 8 inches past the fender and still you want isolation from chassis. In my design was also avoiding having any core feed or return lines from getting anywhere near the exhaust, to mount it such you have to channel them above, you could probably asbestos wrap them; but again your dealing with pretty tight clearances.

remember the cores weight when filled with oil and fittings attached is substantial wherever it get mounted make sure its really really on there.

I have a 1995 so I don't have the fan. The oil lines go through the hole for the fan.

http://www.nsxprime.com/photopost/nsx-prime-member-galleries/p13365-oil-cooler-install.html

Rotate the next two image 90 deg clock wise.
http://www.nsxprime.com/photopost/nsx-prime-member-galleries/p13366-oil-cooler-install.html

http://www.nsxprime.com/photopost/nsx-prime-member-galleries/p13364-oil-cooler-install.html
Output from motor is connected to bottom of cooler "far right connection in image"
Top of cooler connections supply back to motor. Accusump Tee's into that "for most hose". There is a check valve in place. it is not in this image.
The accusump line travels over tire and into trunk behind the fender liner.

Accusump is in the trunk. Everything fits behind the fender liners.

I ran it for several years with the fender liners in place. I recently cut the liner behind the cooler to see if I could improve cooling.
Seem to work a little better but the jury is still out.

Yes I would like to sell the adapter with fittings.

Just for information sake, I went a bit more exotic for my setup but am very happy with it.
http://www.pwrusainc.com/radiators.aspx?p=Car&c=Honda&id=74&sp=11

This is where I had mine originally coupled with the Accusump on a stock body.
It worked well.

just bought a accusump, now looking for a oil cooler, thank you everyone for the ideas. Coz,RYU I will copy your set up, seems to be just what the doctor ordered.

Coz said:

This is where I had mine originally coupled with the Accusump on a stock body.
It worked well.

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This will only work for an OBD1 car as the factory air pump and all of its plumbing take up this space on the newer cars. There is room for the cooler but the space were the Acusump is will be ocupado.

Coz, I assume you left the OEM oil cooler inplace and this was in addition to that cooler?

Dave

Yes, continued to use the OEM cooler as well.

DDozier said:

This will only work for an OBD1 car as the factory air pump and all of its plumbing take up this space on the newer cars. There is room for the cooler but the space were the Acusump is will be ocupado.

Coz, I assume you left the OEM oil cooler inplace and this was in addition to that cooler?

Dave

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Coz, did this setup work with the stock rear fenders? I thought I read that you are widebody which should help with storing the Accusump there.

Yes, Thats how I set up when I was still a stock body NSX.

Shame there wasn't a off the shelf kit available for the fender mounted option.

I have the SOS kit which has been good but it's it the way when installing a turbo.

Just ordered my oil cooler. This is the first time I took on a job like this. Can anyone help me with the system architecture, and parts needed? I know that I have to do a mock up to see what fittings and length of tube. So far just have the accusump and oil cooler. I guess I need a sandwich adapter. Do you plumb the lines in a series configuration, i.e. sandwich to oil cooler to accumsump back to sandwich?

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How effective is the SOS kit? temp drop?

jaffaz32 said:

Shame there wasn't a off the shelf kit available for the fender mounted option.

I have the SOS kit which has been good but it's it the way when installing a turbo.

Click to expand...

g3driver said:

Just ordered my oil cooler. This is the first time I took on a job like this. Can anyone help me with the system architecture, and parts needed? I know that I have to do a mock up to see what fittings and length of tube. So far just have the accusump and oil cooler. I guess I need a sandwich adapter. Do you plumb the lines in a series configuration, i.e. sandwich to oil cooler to accumsump back to sandwich?

- - - Updated - - -

How effective is the SOS kit? temp drop?

Click to expand...

I am planning on doing an accusump with fender mounted oil cooler. I would to happy to lend you an extra pair of hands for your install if you don't mind me learning from you.

I can give you guys a hand, yes there is a certian way to do it. It all needs to be in line. sandwitch plate out>cooler>1 way check valve> T split to accusump> sandwitch plate in. You'll also need the sandwich plate and the banjo bolt which you shuold have gotten if you orderd the SOS accusump kit. You can see a good diagram of the whole system here:

http://www.scienceofspeed.com/produ..._products/NSX/ScienceofSpeed/oil_accumulator/

This becomes signaficantly more of a mental chore to figure out when you start to add oil pressure ports, T's, check valves, standared threading adaptors etc but its still not that difficult. Its actually much easier when you aren't running the fan provided with the SOS kit. Theres a place local to us that stocks all the AN stuff called VF sales on NOHO, (http://www.vfsalesnoho.com/) I was finding i'd stall the whole operation while the stuff to be shipped then I found VF and was able to just basically build what I needed at the store, pay and install.

you can also go with push on hoses to save quite a bit of money, just dont use standard clamps over the barbs since it will eventually eat through the rubber. You need something called Otiker clamps and theyll do just fine.

for all the weirdo one off stuff you can order from here:

https://www.pegasusautoracing.com/advcat.asp?CategoryID=PLUMBING