Project EVO IX Part 5: ARK Designs and Mitsubishi Products


The MFD has quite a bit of mounting flexibility.  The unit itself is ultra thin with a pre fabricated wire harness.  It also has a fairly small footprint, slightly bigger than a credit card. It is so thin, compact and light it can be securely mounted to any flat surface with double stick tape.  To further increase mounting flexibility, the MFD has the unique ability of allowing its display to be rotated 180 degrees, so a user can choose to have the controls on the right or left of the screen.  This made it extremely easy to do a sanitary installation job.

ARK Desgin MFD, RST and ABC
The ARK Design MFD, RST and ABC are thin and compact.  They put a lot of function in a small unobtrusive place.  We didn’t want to have ricey cop attracting pillar pods and a bunch of control boxes hanging all around the interior.

To mount the MFD, we first relocated our radio to the lower position on the center console using Mitsubishi’s factory radio relocation kit.  This nice piece includes the brackets and a new radio surround.  Moving the radio lower allows the MFD to be installed up high on the dash where it is easy to monitor.  We used a Genuine Mitsubishi block off plate to mount the MFD via the use of the provided double stick tape.

We also installed ARK’s RST.  The RST or Rev Shift Timer incorporates a Turbo Timer, Shift Light, A/F Ratio and Battery Voltage meter in a slim compact package about the size of a pack of gum. The RST LED indicator shows color changing A/F readings as well as shift point. An easy to use see-saw and roller button control makes switching function on the RST easy. We liked is the RST’s automatic mode, where the unit decides how long the turbo timer should let the engine idle based upon how the car was driven before shutoff. 

Although the A/F ratio meter is a cool display, it is not a wide band unit and thus not suitable for tuning.  When compared to the output of our Innovate LM-1 we found it was quite a bit off for anything not in closed loop, which is typical of non wide band sensor meters.  Treat the display as an open loop indicator and you won’t have any problems.

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