Installing a Relief Valve on a Toyota Celica GT4
This page contains details of additional parts and tools required aswell as how to determine the best location for the relief valve. The instructions are based on a GT4 install however the principles are the same for any turbocharged car.
1 metre of vacuum hose 6mm i/d – cut into two 50 cm lengths
1 philips screwdriver (for the Toyota hose clamps)
Determining the desired position
Take a few minutes to decide on the desired position of the relief valve. Questions to consider may be :-
Where can it be hidden out of site ?
NOTE: The installation instructions below not only explain how to plumb in the relief valve but also highlight an ideal location for the valve between the fuse box and battery.
The following instructions are based around a GT4 install however the principal is the same for any turbo-charged car. The important thing to remember is to ensure the flow of the air is from the turbo to the ball end of the relief valve to the waste-gate actuator. Where the relief valve is mounted is really incidental although pipe lengths should be kept to a minimum.
AFM unit complete with the air filter.
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