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retsell's HUGE radix heat exchanger

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Old May 19, 2004 | 11:42 PM
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you could through a sensor in the intake track tube, after filter before s/c.
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Old May 20, 2004 | 12:03 AM
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Hey retsell, what are the dimensions? dual or single core? What is your total cooling surface area? how is the fitment of your grill shell with that monster?

I just put in my order to Ron Davis racing radiators for my new heat exchanger. It will be dual core (two rows of one inch tubes) 22"L x 2.75"W x 8"H. It will be 288ci of cooling area. (core of 18x8x2).

I run two Jabso water pumps in parallel to quickly cycle my water. I think this is key when you are under boost because you want to get hot water out of the intercooler and cold water back into it relatively fast. The rate of heat transfer into water is high. If you are able to transfer heat into water quickly it makes sense to expose lots of cool water to the intercooler so it can do its job.
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Old May 20, 2004 | 01:41 AM
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Lets hear some more details on that beast. How isit mounted, where did you get it from and how much was it? Any way we can get some pics of how it's mounted?
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Old May 20, 2004 | 08:00 AM
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Re: alternate IAT sensor...

There was talk on here about using your rearview mirror temp gauge as an alternate IAT sensor. It'd be quite easy to wire/rig up.
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Old May 20, 2004 | 08:25 AM
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Originally Posted by Ryan23silverado
Hey retsell, what are the dimensions? dual or single core? What is your total cooling surface area? how is the fitment of your grill shell with that monster?

I just put in my order to Ron Davis racing radiators for my new heat exchanger. It will be dual core (two rows of one inch tubes) 22"L x 2.75"W x 8"H. It will be 288ci of cooling area. (core of 18x8x2).

I run two Jabso water pumps in parallel to quickly cycle my water. I think this is key when you are under boost because you want to get hot water out of the intercooler and cold water back into it relatively fast. The rate of heat transfer into water is high. If you are able to transfer heat into water quickly it makes sense to expose lots of cool water to the intercooler so it can do its job.
I cant remember the exact dimensions, but it is a dual core, apx 22" x 24" x 2.5" So total cooling area would be 528 cubic inches. The grill just required a little trimming. I plan on using a bigger water pump eventually, but it works pretty good for now.
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Old May 20, 2004 | 08:28 AM
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Originally Posted by Flyer
Lets hear some more details on that beast. How isit mounted, where did you get it from and how much was it? Any way we can get some pics of how it's mounted?
A friend is a manager at o'reily's so he ordered it for me, it was under 200 bucks cost. I cut off the water necks and tig welded in some filler plates. I then drilled a couple of holes, one on the top left, and one on the right side on the bottom. I welded in a couple of aluminum -AN fittings and some mounting tabs on the sides. I used 2 stock bolt holes from the factory tranny cooler, and bolted into the factory lower brace. I had to notch the lower brace for the tranny cooler lines, and I moved the tranny cooler closer to the radiator (more welding brackets)

I couldn't have done this without my trusty tig welder.
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Old May 20, 2004 | 08:29 AM
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Originally Posted by marc_w
Re: alternate IAT sensor...

There was talk on here about using your rearview mirror temp gauge as an alternate IAT sensor. It'd be quite easy to wire/rig up.
I have thought of that, I would just have to test to see if it is the same style sending unit.
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Old May 20, 2004 | 10:19 AM
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Man ... sounds like a fair bit of wok went into it. It looks fairly nice. Iwish someone made something similar that would bolt up with few modifications. I would have a hell of a time getting that aluminum welded on.
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Old May 20, 2004 | 01:01 PM
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Originally Posted by Flyer
Man ... sounds like a fair bit of wok went into it. It looks fairly nice. Iwish someone made something similar that would bolt up with few modifications. I would have a hell of a time getting that aluminum welded on.
I wouldn't exactly say it looks nice... kinda ugly actually..
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Old May 20, 2004 | 01:13 PM
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Originally Posted by retsell
Here are some pics of my massive heat exchanger, keep in mind it goes all the way to the bottom of the bumper.




I will find the ones with the grill on the truck tomorrow.
I'm kind of confused; please dont tell me this is your intercooler. this is your radiator/transcooler or some combo like that...right?
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