2 hour oil cooler install, Preparations for WCC Options

[Demick]

I finally got around to installing my aux oil cooler. Used a Mocal thermostatic sandwich plate and Derale fan/cooler. Aeroquip blue hose with -8AN push on ends connected it up. Hose runs next to valve cover and zip ties to the wire bales (should make valve adjustments interesting). I removed the heater J tube on the passenger side to route the cooler lines. Since that J tube was just capped anyway, I just removed the J tube and put the cap where the J tube normall attaches to the heat exchangers. So there is no change to the heating system.

Demick

[Demick]

And here is the sandwich adapter showing oil line routing.

[Demick]

more

[SirAndy]

QUOTE (Demick @ Feb 13 2005, 07:43 PM)

more

so you're blowing the hot air from your internal oil cooler right onto the feed/return line for the external cooler.
then you proceed to blow hot air from under the car over a cooler that has no natural air flow what-so-ever.
did you mount it flush with the rear trunk? it looks like it. if so, where is the air from the fan supposed to go? the fan won't create any air-flow this way (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif)

*if* you see any drop in engine temp with that setup, it's most likely due to the fact that you're adding 3 or 4 quarts of oil to the system.

i doubt that cooler setup will do anything for 'ya ...
(IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) Andy

[Demick]

Air does not blow onto the cooler lines. There is 1" of space between the cooler and the trunk floor (twice the space required by the cooler). Air is pulled down through the cooler - not up. Cooler and lines only add .6 quarts of capacity to the system.

I believe it will do what I need (provide 20 degrees of additional oil cooling on a hot day when doing 80mph for extended periods).

Demick

[SirAndy]

QUOTE (Demick @ Feb 13 2005, 08:07 PM)

Air does not blow onto the cooler lines.

ok, am i nuts?
i see the 2 oil lines running right under the stock oil cooler where they exit/enter the sandwich adapter ...

(IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) Andy

[Aaron Cox]

QUOTE (SirAndy @ Feb 13 2005, 09:09 PM)

QUOTE (Demick @ Feb 13 2005, 08:07 PM) Air does not blow onto the cooler lines. ok, am i nuts? i see the 2 oil lines running right under the stock oil cooler where they exit/enter the sandwich adapter ... (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) Andy

he is right... but... i dont think that is avoidable....

hmm... i may run a front cooler just in the valence

[SirAndy]

QUOTE (Demick @ Feb 13 2005, 08:07 PM)

Air is pulled down through the cooler - not up.

ok, then you're sucking hot air through a hot cooler instead of blowing it, big difference ...

i doubt you'll see a 20 deg. drop with that setup, especially not on a hot day.

but hey, that's just MHO ...
(IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) Andy

[Trekkor]

QUOTE

I believe it will do what I need (provide 20 degrees of additional oil cooling on a hot day when doing 80mph for extended periods).

I think it will work, too.
Nice job Demick. (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif)

As long as the air passing over the cooler is a lower temp than the oil, it will offer cooling.

KT

[Aaron Cox]

BTW: how much was the sandwhich adapter and pricer per foot of hose?

i may run lines up to the front of the car and run a small RX7 style cooler in the valence area.... run the hoses in the rockers

[Demick]

Andy - you are right - the lines run under the stock cooler. But that is the only place to run them with a sandwich adapter. Still, the air exhausting the cooler is still cooler than the oil temp in the hoses. So it cannot further heat the oil.

The air going through the aux cooler is not ambient, but it isn't 200F either. If I am stopped at a stoplight, it probably gets pretty hot under there - but I don't need extra cooling when I'm stopped. I need it when I'm going down the freeway at 90mph or whatever. At higher speeds, there is lots of turbulence and fresh air gets mixed with exhaust air etc.

Here's an example. Drive down the freeway on a warm day. Now pull over and open the rear trunk and feel how warm the floor of the trunk is. Is it warm? Yes. Is it 200F? Nope. Maybe 120 or 130F. The air under the trunk is pretty much the same temperature as the floor of the trunk. So that air is still about 100F cooler than the oil. Should be able to do an adequate job of cooling.

Is it good enough for a 20 minute session at Thunderhill on a 105 degree day? Nope. But I didn't intend it for that.

Aaron: The sandwich adapter was about $90. The price per foot of hose was just over $3. But the real savings on this type of hose is the fittings. The 90 degree elbows were $7 each as opposed to nearly $20 each if I had used the traditional Aeroquip reusable hose ends.

Demick

[tommy914]

Demick,

I have a similar setup and have been happy with it.

It the oil lines bother you too much in that location, you might try running them the way I did.

Since you already removed the passenger J pipe, run the oil lines up into the engine compartment, then stright back, exiting out 2 holes cut into the rear engine sheet metal. This will keep them out of the way.

That's assumming you have room in the engine compartment.

I put red circles on your picture to show where the would exit.

[J P Stein]

I'm gonna use that blue hose for fuel lines.
I don't trust it for oil lines.....but WTF do I know.
Since you've got it on there, I'd put some hose clamps on the barbed ends.....unless Aeroquip specifically says not to.
That set-up is better than nothing. You may well get your 20 deg drop......but WTF do I know? (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

[tommy914]

My Aeroquip guy said NO hose clamps. The barbs on those "push on" ends are sharper than the usual barbed end. He said if you use a clamp, it will cut the inside of the line.

No leaks so far.

[Joseph Mills]

QUOTE (Demick @ Feb 13 2005, 10:50 PM)

I need it when I'm going down the freeway at 90mph or whatever.  At higher speeds, there is lots of turbulence and fresh air gets mixed with exhaust air etc.

Demick,

My engine exhibits warmer than desired temps on the highway also. Around town it's fine. I will be most interested in your results. I'm planning on a similar setup later this spring.

That cooler looks just like an Atomic-Cool from Performance. Was it around 180 bucks?

Keep us posted on your temp findings.
(IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)

[McMark]

There's the best way and then there's good enough. Demick's way is probably going to be good enough. Sure, it could be better, but for a single afternoon install, you can't beat it.

Good job Demick.

[Demick]

Tommy: Yes, I considered running the hoses throught the engine compartment, but with F.I., there's a bunch of stuff in the way.

J.P.: The blue hose is meant for socketless fittings with no hose clamps. Good to 300psi. More than 4 times what I will ever see. Like Tommy says, hose clamps will actually cause problems rather than solve them.

Joseph: Yes, this is the Atomic Cool setup like Performance sells.

Demick

[Aaron Cox]

way cool demick!

where did you order the parts from?
i think i can get away with running a fluidyne thinline (used) cooler up front and all fittings and lines for less than 300..... wonder how much oil that adds? (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif)

[bernbomb914]

I installed a cooler like yours but I put it closer to the wheel well and set it on an angle. works very well according to the stock guage.

[Triaddave]

i got the same cooler/fan last friday. i was planning to install it on the dual grill lid i made. the cooler/fan should fit close to the firewall,attached to the grill yet under the window.no pictures yet, i'll play with it today and post some pictures when it is done.