I have a 2005 Silverado with a Magnuson inter-cooled Radix 112. I have been trying heat exchanger upgrades and contacted " non sponsor link "with my needs and he delivered with a larger triple pass unit that is well built and very versatile to adapt.
The unit has a high count fin core for excellent heat dissipation and coated end tanks and headers for durability and long life.

Mine is a first run non-vehicle specific prototype that was configured with four threaded mounting bosses on each side with a downward facing port on one end and a side facing port on the other. With this setup I was free to flip or rotate the heat exchanger in any orientation that suited my installation. The only preference MercRacing suggested was to flow inward to which ever port I had orientated on the bottom.



Another thing I like is I have room under it behind my bumper to mount the Radix heat exchanger in line with it if I want, and I probably will.

The installation adaptation was very easy only requiring me to fabricate two small plates to get the mounting points onto the Magnuson Radix rubber mounts. I used over sized nuts over the plate bolts and top bracket bolt to adjust the spacing outward to maintain the trans cooler clearance.

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My test results:

Weather Conditions were within 3°F on each test. Humidity was high and in overcast conditions on both days.
Each run was made on following days so the conditions of a fresh start up from sitting over night and matching warm-up drives to the WOT run area I use.

• When doing matching WOT runs up to 115mph both HX’s matched the raised IAT increases at the end of the run of 30°F.
• The MercRacing HX recovered in 1 minute. The Radix HX took 1min 40 sec to recover. Almost a minute advantage. On each run I would let off in the same way and hit the cruise control @ 65mph and monitor the time and temps.
• At cruise well after recovering from a WOT the MercRacing HX IAT's fluctuated 5°F to 10°F cooler than the Radix HX, according to if one is going uphill or cracking the throttle plate a little more. It was also noticeably faster to recover from playing around.
• When idling in the driveway after returning from a run and letting it sit for 15 minutes with the fans doing their cycling the IAT temps were 5°F lower than the Radix = 115°F vs, MercRacing = 110°F. This is in heat soaked conditions.
• At the same time I placed a temp probe in my return reservoir tank and the MercRacing HX held 8°F cooler than the Radix. This idling test thing is a test or curiosity I have. The throttle plate is closed and the blower is bypassing the screws I know. I guess it’s a way of testing the cooling of the intercooler when no air is flowing through it?

The pump flow returning into the reservoir looked to be unchanged with a strong flow.

I am happy with the improved cruise temps and faster recovery capabilities and the option to add my Radix in the line instead of trashing it or standing it in .

 

How does that heat exchanger compare to the larger maggie units that are used on the newer trucks? It looks awesome BTW.

Great data to support the upgrade.

 

i wonder if this fits behind the grille of a 2006 Chevy Tahoe, I had to trim a lot to make my maggie heat exchanger and tru cool 40k fit

 

why do you have a huge loop in the top hose?

great testing and results.

 

Is this the unit off there website or custom built? I wouldn't mind doing this to my Monte and keep the IAT's down to keep my motor alive longer, I felt the stock unit was a bit small.

 

Not sure. But when I dealt with him he was very interested in complying to my application. All you have to do is start a communication with him and give him the info he needs.

Thanks, I think the triple pass has a lot to do with how fast it recovers. The Bosch pump doesn't seem to be burdened with it at all flow wise at all.

The loop in the hose is because I just did the swap and wanted to make sure I liked it before trimming it back. If for some reason I had an issue I would still have my original plumbing to revert too. I was wondering if I was going to get asked about it.

Well, kind of custom I think because he is trying to make them so they can be adapted to most any application. Such as the four mounting points on each side. And the nipple arrangement. I think he is pondering putting female pipe threaded bungs on so you can use straight or angled fittings to suite your plumbing needs.

 

Dare I ask how much?
I like how u can go w/. both Hx's. U think like I do, leave extra hose to see if it's a keeper. What really caught me eye, not the loop of hose, but the reservoir on pass side in front of all your coolers yet behind grille. I never saw that b4. Why / did it help?

 

I was surprised at the price. He is just getting started in this truck application mode so if you contact and ask it would be more accurate for you.

The reservoir and pump out of the engine bay difference was not measured but its got to make sense. I'm sure they get heat soaked somewhat in there.

Thanks

 

Bumping this up to let you guys know this exchanger was an significant improvement this summer over the little Maggie unit I have ran for years.

It cruises cooler and recovers faster. WOT at sustained top speeds its a close race, but the recovery times I really like.

Rush hour Bumper to Bumper traffic on the Atlanta Free Ways she is a little cooler and as stated, recovers faster.