Tim's MegaSquirt Install - 1984 RX-7 GSL-SE

We put a MegaSquirt on Tim Schuh's 1984 RX-7 GSL-SE. It's already fuel injected, but it used a restrictive flapper-type air flow meter. The MS allowed us to ditch the AFM, and of course tune for performance and allow for future mods and improvements.

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This is the factory mess - er, harness. The silver box is the factory ECU. The two white plugs at the bottom are a pair of Molex plugs that we added. The harness for the MegaSquirt plugs into those Molexes.
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This is the MegaSquirt hearness, without the hood on the DB-37 connector. That's the end that plugs into the MS.
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We fitted it into the glovebox. Lacking mounting flanges, we just zip-tied it in.
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It just fits...
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...if you make a hole for the plugs to hang out the back.
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The factory TPS was a plunger-type setup, and didn't read the whole range, so we had to add a rotary TPS.
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The fact that tim was removing most of the crap on the throttle body (like cruise control and the secondary throttle close-off) helped make room for the TPS and a bracket.
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works like a charm!

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