ARM Motosport Mk7 FMIC Kit parts

Project Bicooler: ARM Motorsports FMIC

Background:

Continuing to search for a front mount IC to use along with the stock location IC as a bicooler, the ARM Motorsports FMIC came available as another option.

Closely resembling the Vibrant 12810 core that I previously looked at, and still have as a candidate, the ARM kit includes mounting hardware that might make it feasible to try and use it as a bicooler.

Unpacking:

The ARM FMIC kit arrived well protected with all of the components for the install.

ARM Motorsports Mk7 GTI FMIC Kit
ARM Motorsports Mk7 GTI FMIC Kit

While the core looks very similar to the Vibrant 12810, ARM informed me that it is not the Vibrant core, and inspecting the external fin spacing along with the internal fin arrangement, I could see that there are differences.  Additionally the ARM core measures 9″ in height where the Vibrant is 9.25″

ARM Motorsport Mk7 FMIC
ARM Motorsport Mk7 FMIC

All of the parts for the installation.  Mounting brackets, hoses, hose clamps, and piping:

ARM Motosport Mk7 FMIC Kit parts
ARM Motosport Mk7 FMIC Kit parts

Install:

My plan for this intercooler was to break from tradition and skip bench testing until after I completed on vehicle testing.  Install of a FMIC is relatively quick and straightforward and I already had the bumper off for other work.

Prep to install ARM Motorsport FMIC
Prep to install ARM Motorsport FMIC

Prior to connecting parts I turned the IC on end and gave it a couple of whacks with my hand.  A couple of bits of debris fell from the end tank, prompting me to continue rapping the core.  More stuff fell out, damn!

A rubber mallet was next as I proceeded to tap up and down all along the intercooler.  Cut to the chase, the picture below shows the total collected from the rap session.

ARM Motosport FMIC debris
ARM Motosport FMIC debris

For perspective, that bolt passes through the 3.2″ thick end tank.

There was enough debris exiting the IC to give me pause and prompt a change of plans to do some bench testing instead.

I ran water through the IC in both directions for several minutes and will have to see if anything else can be dislodged.

Path Forward:

I’m leaning heavily toward returning the ARM Motorsport FMIC once testing on the bench is complete.  The engine in my GTI is already built and I don’t care to risk damage to it from a piece of debris that dislodges from the intercooler.

2 thoughts on “Project Bicooler: ARM Motorsports FMIC”

  1. I hated seeing the debris you had in your arm fmic. I just installed the exact IC on my Mk7 GLI Tuesday. Luckily I saw this before install and was able to check mine. No debris! I’m happy with the cooling of the ARM but it seems that my boost is not as high as it was. I’d like to get the right pipes to access the stock IC as well as the arm. Seems like a waste to just cap the stock especially seeing that it has better airflow! Do you know where I could buy some that might work? Love your site! You break everything down so scientifically. It’s amazing!

    1. Hey Steve, thanks for that feedback about the site, glad to hear you are finding it useful.

      The only two places I know for purchasing a bicooler capable hose are Forge and Majesty/CSK on eBay. I would expect that you’d need to do some modifying of the hose, probably cutting off a portion of it and fitting an adapter.

      ARM told me that they sampled some other ICs they have and did not find any contaminants. They’re going to inspect them more closely for a while.

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