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Blow-off Valve DD
The Blow off valve is essential to
all turbocharged vehicles. The purpose of the BLITZ® Blowoff Valve
DD is to relieve compressor surge without reducing compressor speed.
It controls boost pressure that is built up by the turbo and vents
it into the atmosphere when the car is not under load (in between
shifts). This prevents pressure from backing up into the compressor
housing, causing the turbo impeller blade to rapidly stop or even
worse, to spin backwards (compressor surge or backspin). Doing so
can be potentially destructive to the turbine wheel and shaft. Repeated
stress over time can cause eminent damage to the turbo charger and
eventually lead to turbo failure. A blowoff valve is actuated by
pressure changes only, ensuring quick valve responses and complete
closures at idle. The BLITZ® blowoff valve not only improves performance
and response, but also increases the life of the turbocharger.
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