Oil Cooler

[project86]

Since im ALWAYS BAW I think a lot about my car. Today, I'm thinking about oil coolers. I've had this idea for a while.... but first:

What are some good aftermarket OC set ups? I like idea of a dual set up but most of the kits I see are for the FD platform. I imagine I could modify anything to fit but I wondered if anyone here is running a slick set up I could see.

Now my idea.... I'm non turbo. I was thinking that it would be SWEEEEEEEEEET to VMount the radiator and oil cooler(s). Has anyone ever done that?

[djmtsu]

You don't need to upgrade yours. In fact, FC oil coolers ARE an upgrade for many, many other cars!!!!

[project86]

You don't need to upgrade yours. In fact, FC oil coolers ARE an upgrade for many, many other cars!!!!

Right after I posted this I went over to Mazdatrix and they said essentially the same thing.

Is there any advantage in moving to a dual set up like the FDs have?

[Pete_89T2]

Right after I posted this I went over to Mazdatrix and they said essentially the same thing.

Is there any advantage in moving to a dual set up like the FDs have?

Nope, just more things to break and/or leak. If you consider that sort of thing an upgrade.

[project86]

Nope, just more things to break and/or leak. If you consider that sort of thing an upgrade.

Hahaha.. ok fair enough. I'll just get new lines then.


Now what about the VMount idea?

[Johnny_K]

V mount Radiator and oil cooler(s) on a NA FC? Why?

If it's been done, I'm sure ppl have talked about it on rx7club.

Most of the FD guys run Setrab, Mocal coolers and thermostat.

[Johnny_K]

Right after I posted this I went over to Mazdatrix and they said essentially the same thing.

Is there any advantage in moving to a dual set up like the FDs have?

No. Some of the FDs run two oil because 1 is too small for track use.

Hahaha.. ok fair enough. I'll just get new lines then.


Now what about the VMount idea?

I'm don't follow FC builds but i have seen anyone Vmount on a NA. People probably don't do this because the stock setup works well.

[project86]

V mount Radiator and oil cooler(s) on a NA FC? Why?

In my mind for the same reason you would Vmount a radiator and intercooler.

[djmtsu]

Not necessary. It gets great airflow as it is, and has short lines, so it is simple.

FYI- the oil cooler from my Cosmo is considered an upgrade for any rotary, since they are like 8 core!!

[project86]

Not necessary. It gets great airflow as it is, and has short lines, so it is simple.

FYI- the oil cooler from my Cosmo is considered an upgrade for any rotary, since they are like 8 core!!

Do you have an extra????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ????????????????

[Johnny_K]

In my mind for the same reason you would Vmount a radiator and intercooler.


On a FD if you put an intercooler in front of the radiator it blocks airflow to the radiator therefore it doesn't cool the intercooler as good as it should. That's why people go v mount.

[djmtsu]

Do you have an extra????????????????

Sure thing. Comes with a semi-roller Cosmo. $3000. Free delivery.

[project86]

Sure thing. Comes with a semi-roller Cosmo. $3000. Free delivery.

To quote you... "No love for locals?"

[djmtsu]

To quote you... "No love for locals?"

Uh, I said free delivery?

Geez.

[FC Zach]

What are some good aftermarket OC set ups? I like idea of a dual set up. . . I imagine I could modify anything to fit but I wondered if anyone here is running a slick set up I could see.

I'm glad it's already been mentioned that you'd be downgrading. . even if you did a twin set-up (aside from the extra failure points and places to leak, like Pete said), the two combined still wouldn't suffice when compared to the OE part. Especially without going the extra mile to build duct work to each to even have a fighting chance.

For what it's worth, (IIRC) my oil temp is typically ten or more degrees cooler than engine temp when driving.

[infernosg]

Yep, as everyone has said the FC oil cooler is considered to be one of the best. I wouldn't worry about it unless you're having problems. If you're that concerned you can do what I did and make better ducting for the front of the car. In factory form air can pass over the oil cooler. I made a duct out of aluminum that divides the air coming in from the front of the car:

https://lh3.googleusercontent.com/LOslyNxU6tIW8aGGahPAHgRUBJmDY6PVBeIUCERAGej0lzXgr1 MQogriFQe3RAIriuAHN1j-R5QhflcLmAQtYECRovDtFywu6PmG_II9ZFj2zUN4YdqqEXs0k1 5dSFRDtZEmw1iHA5W_Rxby9mNEUnHBhT2sTzZQd1FmVp1Fuh0D LbKauwrgVfG97PqPfG5DYa3r0KdvNYj_O128CGUjNUNQPpVo01 M0smOL0fIOJvKRqM2F0UmPCliC04BZ2mOlwi4H3auS2k8NyFer l_dodvMWUpAr32qJgmqnTxGsnAuDhVAkYnuvCr4HzbIUAs1XKk PiGBxVxIf3WhlbrJubH2_MoJzXeHgCCI3oxSNeVVfDIQosq8et s8quU7BtcL4t48Bu6LOHgPMNcpUINTsznUsTYIiVHErMsodIhs iHSIUNappxqWoVpIODVojCeoDdwkYveCPowlmH4JO2_CXyH2-Tjb8GtMssjWfArZsX2pQCD-Pez0OGCIY3eiWiSE5Q40PQYQilvHVOtovzhHD8uZgMttOkuPTp s491HSQOZzuviRw-aGVGuhv027_MX_UbN87OzCY3umqNd_k96B9w0cGPVHcHcsn_qH hgy6TFQLNniZoyNqlnoA1iILtUrLL8ntKRd9-ESgd018haOXeG5DxVrlOACDgp0toRpxYawEtrJQ=w1689-h950-no

Google Photos has been weird so let me know if the image doesn't work.

I do recall reading some Improved Touring (IT) guys running dual FC oil coolers in series/parallel, but that seems like overkill to me.

[project86]

Yep, as everyone has said the FC oil cooler is considered to be one of the best. I wouldn't worry about it unless you're having problems. If you're that concerned you can do what I did and make better ducting for the front of the car. In factory form air can pass over the oil cooler. I made a duct out of aluminum that divides the air coming in from the front of the car:

https://lh3.googleusercontent.com/LOslyNxU6tIW8aGGahPAHgRUBJmDY6PVBeIUCERAGej0lzXgr1 MQogriFQe3RAIriuAHN1j-R5QhflcLmAQtYECRovDtFywu6PmG_II9ZFj2zUN4YdqqEXs0k1 5dSFRDtZEmw1iHA5W_Rxby9mNEUnHBhT2sTzZQd1FmVp1Fuh0D LbKauwrgVfG97PqPfG5DYa3r0KdvNYj_O128CGUjNUNQPpVo01 M0smOL0fIOJvKRqM2F0UmPCliC04BZ2mOlwi4H3auS2k8NyFer l_dodvMWUpAr32qJgmqnTxGsnAuDhVAkYnuvCr4HzbIUAs1XKk PiGBxVxIf3WhlbrJubH2_MoJzXeHgCCI3oxSNeVVfDIQosq8et s8quU7BtcL4t48Bu6LOHgPMNcpUINTsznUsTYIiVHErMsodIhs iHSIUNappxqWoVpIODVojCeoDdwkYveCPowlmH4JO2_CXyH2-Tjb8GtMssjWfArZsX2pQCD-Pez0OGCIY3eiWiSE5Q40PQYQilvHVOtovzhHD8uZgMttOkuPTp s491HSQOZzuviRw-aGVGuhv027_MX_UbN87OzCY3umqNd_k96B9w0cGPVHcHcsn_qH hgy6TFQLNniZoyNqlnoA1iILtUrLL8ntKRd9-ESgd018haOXeG5DxVrlOACDgp0toRpxYawEtrJQ=w1689-h950-no

Google Photos has been weird so let me know if the image doesn't work.

I do recall reading some Improved Touring (IT) guys running dual FC oil coolers in series/parallel, but that seems like overkill to me.


Wanna make me one of those? I assume you are using that with the stock front bumper?

[project86]

I'm glad it's already been mentioned that you'd be downgrading. . even if you did a twin set-up (aside from the extra failure points and places to leak, like Pete said), the two combined still wouldn't suffice when compared to the OE part. Especially without going the extra mile to build duct work to each to even have a fighting chance.

For what it's worth, (IIRC) my oil temp is typically ten or more degrees cooler than engine temp when driving.

I'm really glad to know that the stock one is so good. I guess I'll just look into getting braided lines for it and call it a day.

[djmtsu]

I'm really glad to know that the stock one is so good. I guess I'll just look into getting braided lines for it and call it a day.

If your factory lines are in good shape, and not leaking, don't replace those either.

[project86]

If your factory lines are in good shape, and not leaking, don't replace those either.

But im going to.

[FC Zach]

If your factory lines are in good shape, and not leaking, don't replace those either.

But the braided lines look better :)

[Pete_89T2]

But im going to.

Why? Don't fix what isn't broke or you'll be back here with another problem :rofl:

There's nothing wrong with the stock lines, and if they are in good shape, they will remain leak free and work as well as any aftermarket lines you could buy or build yourself for many years. I would just give the stock lines a very thorough cleaning and inspection, and go from there:

1. Are the crimp fittings corroded excessively (more than just a little surface rust), and if you try to rotate the crimp fitting around the hose, does it rotate at all relative to the hose? If answer is NO on both, stock lines are good.

2. Is the rubber hose material still pliable, with zero evidence of swelling or any unusually brittle/hard or mushy/soft spots that you can feel when you squeeze the hose anywhere along its length? If it passes this test, the stock lines are good.

[t_g_farrell]

Why? Don't fix what isn't broke or you'll be back here with another problem :rofl:

There's nothing wrong with the stock lines, and if they are in good shape, they will remain leak free and work as well as any aftermarket lines you could buy or build yourself for many years. I would just give the stock lines a very thorough cleaning and inspection, and go from there:

1. Are the crimp fittings corroded excessively (more than just a little surface rust), and if you try to rotate the crimp fitting around the hose, does it rotate at all relative to the hose? If answer is NO on both, stock lines are good.

2. Is the rubber hose material still pliable, with zero evidence of swelling or any unusually brittle/hard or mushy/soft spots that you can feel when you squeeze the hose anywhere along its length? If it passes this test, the stock lines are good.

I agree to disagree on this one. The lines are old enough at this point that its worth the money to get new ones. And the RB ones do look purty!

[project86]

I agree to disagree on this one. The lines are old enough at this point that its worth the money to get new ones. And the RB ones do look purty!


I'll at least check them. If they aren't leaking then I wont prioritize. I can tell you whats not leaking though.. my oil pan....

[speedjunkie]

I have dual 19 row Setrab coolers on my FD and I've seen as low as 109F in the winter and usually about 140-150F in the summer. WAY too cold, I know. But I tested the thermostat and it works, and I made sure it was mounted to flow correctly. Not sure what the deal is.

I was always under the impression that the FC cooler wasn't that great. Good to know otherwise. I'll leave it on my TII (that I haven't started building yet).

[djmtsu]

40 year old lines on both Cosmo's holding strong.

The only issue I have with aftermarket cooler lines (like RB) is they rely on an adapter. Just another potential failure point. And some people have been unfortunate enough to strip or crossthread trying to install them.

[project86]

40 year old lines on both Cosmo's holding strong.

Are YOUR 40yr old lines still holding strong?:suspect:

[djmtsu]

Are YOUR 40yr old lines still holding strong?:suspect:

Thankfully YES!!!

Too well. Ask the wife..

[t_g_farrell]

Ok, but you may want to get some replacements before DGRR next year, so when it blows on the mountain you can swap in the new ones. Just sayin'.

If you were to cut one in half and squeeze it you will see that its swollen and cracking apart.

[project86]

Ok, but you may want to get some replacements before DGRR next year, so when it blows on the mountain you can swap in the new ones. Just sayin'.

If you were to cut one in half and squeeze it you will see that its swollen and cracking apart.

I'll probably replace them before then. I replaced them promptly on my first FC and never had any issues. I dont anticipate an issue with doing SS lines this time either.

[t_g_farrell]

I'll probably replace them before then. I replaced them promptly on my first FC and never had any issues. I dont anticipate an issue with doing SS lines this time either.

I was actually referring to DJ on that comment. :smilielol5:

[djmtsu]

Ha!

Mine don't leak or seep. Flushed them and the cooler thoroughly prior to DGRR this year. I do have another set from the other Cosmo though.

[project86]

I was actually referring to DJ on that comment. :smilielol5:


OOOOOOO... right.. because he has 40yr old lines... i get it.

[FC Zach]

OOOOOOO... right.. because he has 40yr old lines... i get it.

:leaving: