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Old 06-04-2008, 11:53 PM   #1
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Default External oil cooler location in NA Miata

I am in the process of installing a BEGI turbo with their largest IC. The oil cooler and remote filter kit I use won't fit with the IC pipes, so I am going to do something else. Since the oil cooler parts are coming off the car, I am examining different places I could place the new cooler instead of mounting it to the radiator with those long plastic ties. I'd like to find out where everyone else has mounted their air to air oil coolers so I can get some ideas. Thanks.
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Old 06-05-2008, 12:08 AM   #2
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I don't have a oil cooler yet, but its coming soon. I'm gonna try behind my passenger side TSI, or maybe even cut a rectangle it the bumper to fit it flush. I have to wait till I get it to be certain.

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Old 06-05-2008, 12:37 AM   #3
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I might do a carbontrix kidney vent in the bumper for my 24-row cooler.

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Old 06-05-2008, 01:03 AM   #4
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http://www.epowerhousepc.com/delta-1...eed-p-588.html

you think a couple of these bad boys would provide enough air flow? That would make it a bit easier.
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Old 06-05-2008, 01:37 AM   #5
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Old 06-05-2008, 11:28 AM   #6
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mimime- where's the pic that shows the vent to get air to the cooler?

Rick- if you're rad is stock height, there's enough room to squeeze a nascar oil cooler under and just add some depth to the mouth tray.

My base of my rad (flanges) is even with the front bumper/nose cover lip base. IMO there's a good four inches of vertical space to take advantage of in the Miata's front exchanger area. The other option is go with the same rad I have- that will allow you to run an oil cooler right next too it with some exposure to oncoming air - and a healthy increase in oil capacity. You'd just need to get the rad filler neck moved.

Post showing the attempted Mercedes oil cooler test fit next to the rad

Here's shot showing the vertical spacing. Building the rad hanger is simple- hangs from the stock hooks.


Here's the kind of cooler I think would fit in the space under a stock sized rad. They're made to hang under the rad.
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Old 06-05-2008, 11:31 AM   #7
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Hey where can I buy those kidney's??
I need to mount my oil cooler too will try to figure something out this weekend if the weather is ok.

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I might do a carbontrix kidney vent in the bumper for my 24-row cooler.

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Old 06-05-2008, 11:33 AM   #8
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Old 06-05-2008, 11:34 AM   #9
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Quote:
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Hey where can I buy those kidney's??
I need to mount my oil cooler too will try to figure something out this weekend if the weather is ok.
Come on man, spend 30 seconds on google.

http://tinyurl.com/5rhm6n

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Old 06-05-2008, 11:39 AM   #10
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The pit crew front it has a larger opening from the bumper, I was using an 3" ducting feeding air to the oil cooler.
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Old 06-05-2008, 11:51 AM   #11
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Quote:
Originally Posted by wes65 View Post
http://www.epowerhousepc.com/delta-1...eed-p-588.html

you think a couple of these bad boys would provide enough air flow? That would make it a bit easier.
That's sort of what I've been thinking about; fit the cooler wherever is convenient and run a fan (or fans). Was also thinking about not running an oil cooler t-stat, and simply having the fan(s) come on at set temp. Just like the coolant radiator. Can even get a neat-o variable speed controller.

It's something I'll explore post RBII nose installation.
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Old 06-05-2008, 11:55 AM   #12
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Quote:
Originally Posted by Vashthestampede View Post
Come on man, spend 30 seconds on google.

http://tinyurl.com/5rhm6n

Vash-


and whatever you do, not look at the url in the pic.
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Old 06-05-2008, 12:01 PM   #13
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Or motorcycle/ATV fans. Lots of used ones for cheap on eBay.
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Old 06-05-2008, 12:17 PM   #14
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Mine is right behind the radiator, where the A/C fan would normally be.
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Old 06-05-2008, 12:22 PM   #15
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Old 06-05-2008, 12:44 PM   #16
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No fans, no wiring, one more thing to fail. Keeping it simple, a Mocal adapter, -10 hose, and a cooler mounted somewhere. I have a CSF radiator right now. Reason I want to mount the oil cooler somewhere else is because the radiator is so thick that it puts even low profile fans right on my RB hollow swaybar, so I have to mount the fans right on the radiator, which then interferes with the little straps holding the oil cooler to the radiator.

M2, I've seen your rad mount in photos, looks like a nice idea, but I thought it required some welding, which I wasn't prepared to do. I was thinking about redrilling the rad mounts to lower it a bit in the engine bay so there's more of the core in the airstream.
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Old 06-05-2008, 01:42 PM   #17
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Yes, I thought you had a little welder. Anyway- doesn't apply since you've got a good rad. What about the wide cooler under that CSF rad?
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Old 06-05-2008, 03:12 PM   #18
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I have a flux core MIG style welder, but I suck at welding. I was thinking placing it above the IC at an angle, or using some aluminum strap to mount it to the fan standoffs on the radiator.
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Old 06-06-2008, 06:26 AM   #19
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Not sure if this is race proven.. but pretty good idea!

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Old 06-06-2008, 11:31 AM   #20
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Rick- I think that under-rad-mount oil cooler can be done like an intercooler with just some metal straps. You'd just need to put some rubber strips between the rad base and the oil cooler top. Then just just mod that mouth shroud so it drops down to meet the base of the oil cooler.

You can always go for the simplest install first and check results at the track. If it works, then no need for more work. But as far as racing goes, I don't think I've ever seen a rad and oil cooler sandwiched. If you did that, I'd put a good air gap between the two.
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