Oil Cooler at the spare tire housing?

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Tak
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Joined: Wed Jun 26, 2002 12:01 am

Oil Cooler at the spare tire housing?

Post by Tak »

Did anyone installed a remote oil cooler at the spare tire housing under the front trank? Would that be too far from the enigne and drop the pressure too much? Any pros and cons? Thank you for your help.
Tak
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Dave_Darling
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Post by Dave_Darling »

Unless you get air to it and exhaust air away from it, the cooler will be mostly useless. Now, open up some holes in the front of the front panel (you may need to modify your bumper and valence as well), then add ducting around the cooler, and add exhaust holes in the front trunk floor, and you've got something.

You've got the 914-6 GT oil cooler setup, is what you've got. Used by many many people, and generally considered one of the most effective cooler setups.

Most people go to aftermarket high-volume oil pumps to push the oil up to the front of the car. If your stock pump is in perfect shape, it may not be necessary... But it's cheap insurance.

--DD
Tak
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Post by Tak »

Thank you, Dave. Your comment always hits the target.
As my 74 914 had a left over pluming work from after market AC condenser, I thought I could follow the idea.
I see oil cooler locations at the rear axle (at Pelican Web), at the engine hood, and at front (like 914-6). Which application would be most effective? Anyone’s experience, opinion is appreciated.
Tak
redshoes
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Post by redshoes »

I am in the process of finishing my 914 with a twin turbo subaru motor and box, subaru shifter fabficated in and the whole steering column is from the suby also. The radiator will be up front as it is by far the most effective place for it. I would say the oil cooler is the same. lots of beetles etc have the coolers ups front, an idea is to have a lever valve in an accessible position incase a line blows..if not braided of course.

Matt
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Piledriver
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Post by Piledriver »

I'm thinking front area of rear fenders with NACA like ducts feeding them in the rockers...
There is a nice opening for ducting going up.
(This has probably been done)

Braided stainless is cheap if you don't need 30 feet of it...
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Dave_Darling
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Post by Dave_Darling »

It's been done (or a setup like it). But the single most effective placement for a cooler is: Somewhere that gets lots of clean high-pressure cold air. The single place that gets the most of that--the cleanest, highest-pressure, and generally coolest air--is right at the very front of the car. So that is the most effective place to put the cooler.

You can mount a cooler in many other locations. It will not be as effective as a similar-sized cooler placed up front. Will it be enough? That's a very good question, and one that is very difficult to answer. Depends on tons of factors; about the only way to really tell is to try a setup and see.

--DD
Tak
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Post by Tak »

A few more questions, please.
1) Do I need to upgrade the oil pump to heavy duty when I install a Remote Oil Cooler to compensate the added oil passage?
2) Somewhere in “shoptalk forum” mentioned to remove the factory oil cooler from the engine when adding an external oil cooler. What would be the pros and cons of removing the factory oil cooler?
Thank you.
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Piledriver
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Post by Piledriver »

Tak wrote:A few more questions, please.
1) Do I need to upgrade the oil pump to heavy duty when I install a Remote Oil Cooler to compensate the added oil passage?
2) Somewhere in “shoptalk forum” mentioned to remove the factory oil cooler from the engine when adding an external oil cooler. What would be the pros and cons of removing the factory oil cooler?
Thank you.
1) Opinions vary. Generally, you will lose a bit of pressure with long lines, so it's probably not a bad idea at all.

2) Removing the stock cooler might be fine on a race-only engine, if you really understand the changes it will cause in the airflow in the cooling system.

On a street engine, I personally don't suggest it.

Ray Greenwood is doing it as part of an experiment.
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