Operational overview
Your PW66 wastegate, controls turbocharger boost, by bypassing turbine inlet exhaust gas via a spring
loaded valve diaphragm assembly. Spring rate, in conjunction with boost pressure signal, and back
pressure control the opening point of the wastegate valve. Once the spring rate has been over come, the
valve will open. This causes exhaust flow to be diverted away from the turbine side of the turbocharger,
effectively slowing and/or stabilizing the turbine wheels’ speed. This stabilization results in a smooth
and steady boost pressure level, created by the compressor wheel of the turbocharger. Open pressure of
the valve can be controlled via spring rate and or a boost controller, such as a manual boost controller or
an electronic boost controller.
(The upper and lower banjo bolts and fittings are sold separately; part number PBO085-2114)
3
PART NUMBER: PBO085-3000
NAME: PW66
DESCRIPTION: 66MM EXTERNAL WASTEGATE
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