Noobie--first post- oil cooler relocation---ducting. with pics - Miata Turbo Forum - Boost cars, acquire cats.

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Old 06-12-2012, 05:56 PM   #1
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Default Noobie--first post- oil cooler relocation---ducting. with pics

Hello Everyone.

This is my first post I think....I have a 92 Miata with a bunch of flying miata stuff done to it. It was a local FTD auto-x car that I bought.....retired my 2008 mazda 3 fromt auto-x.

Car has the FM2 kit (older), with the link ECU, full exhaust, FM2 suspension with agx's, and a few other things.

So the car after I got it was running hot. IVe now learned that all the stock ducting is gone, and that the car couldnt be lapped unless it was on low boost. Thats no fun. Did a m-tuned reroute. at 12 psi I think it makes sense.

So then I wanted to start building a splitter to jhelp force air into the rad...but before I started that, I recall from a automotive thermo class I took....all this cooler stacking was not good....so I wanted to move the oil cooler. Plus hot oil is no good.

Anyways. I relocated it. Please critique my work. Damn thing took me two days. Back in my SAE Baja/formula days....I was faster at building things...Im slowly getting it back I think. Single car garage and limited tools dont help.

NExt will be building a plywood splitter, and then sealing it to the bottom of the Rad to help force airflow...I still have the plastic side pieces...so those will stay. The tops Im getting my gf to help make some pieces to cover up all the holes near the hood latch and seal it up tight to the rad. Thats for another day

Without further Adoo



















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Old 06-12-2012, 06:17 PM   #2
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Very cool, what will the front bumper look like?
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Old 06-12-2012, 06:21 PM   #3
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Its going to have a hole cut in it lol....slightly smallet though then what you see. I think thats a bit too large.....but maybe once I rivet some screen over it it wont be....hmmm

Either way..to answer your question. Picture the stock bumper....with a hole in that spot. Ill trim to flush with the bumper....dont need it sticking out a foot
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Old 06-12-2012, 06:38 PM   #4
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I'll be interested in seeing how it looks with the bumper all done
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Old 06-12-2012, 09:52 PM   #5
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Nice.

Remember that you want the cross-sectional area to expand, decreasing the air's velocity and increasing its pressure to make the heat exchanger the most efficient. So a smaller hole opening up into a larger duct in front of the oil cooler is a good thing. Preferably it would be a smooth transition.
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Old 06-14-2012, 08:29 AM   #6
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looks good, what are you gonna do to protect back of oil cooler from rocks and debris
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Old 06-14-2012, 11:04 AM   #7
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dam those rusty pipes!
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Old 06-14-2012, 12:33 PM   #8
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nice work... for a noob jk. looks good. I'm going to upgrade my core and build something like this but I hope to feed air from the right side of the center opening or try to find a fog light insert used. I'm going to use silicone brake vent hose that I already have and just build shroud for the core.
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Old 06-14-2012, 02:37 PM   #9
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I had that oil cooler set-up once. You'll need to do something to keep debris off the heat exchanger.
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Old 06-15-2012, 05:24 AM   #10
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I would think about ordering some better fasteners for the hose rather than zipties. I wouldn't want zipties being the barrier between racing and the hoses being ripped off by the tire and ruining the motor.
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