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Chris' '90 Toyota Celica All-Trac Turbo (aka "The Shuttle")
A-Pillar Instrumentation
Updated: September 25, 2017
Gauge Make & Model Function & Purpose
Boost & Vacuum  Greddy 60 mm p/h Pretty obvious, really.  The Greddy gauge measures boost in Bar, and vacuum in mmHG.  As a result, I've become fluent in converting between Bar and psi, and between mmHG and inHG.
EGT Greddy 60 mm p/h An absolute must for anyone who's increasing the boost on a turbocharged or supercharged engine.  Generally speaking, high EGTs (exhaust gas temperatures) can damage an engine, and are sometimes the result of lean a/f ratios.
Fuel Pressure Greddy 60 mm p/h The Greddy gauge measures fuel pressure in Bar.  And, yet another reason to learn how to convert between Bar and psi.
With the cruise control and airbag systems uninstalled from the car, considerable space in the center console behind the ashtray and below the stereo is made available for the mounting of the three gauge controllers and the alarm.  All three Greddy controllers are wired into a single plug for connecting to power and illumination signals. The controllers are secured to each other than the door lock ecu with 3M double-sided tape. .


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