Question for you racers regarding "Banging" sound at shifts
OK... this has nothing to do with Boxsters, but I have searched the web and can't find the answer. When I was have been at race tracks and watch the newer Porsche races cars on the track I hear a loud "bang" or "pop" sound when they shift while racing. What is this caused by? TIA
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I'm guessing that what you are hearing is the ignition being cut for a very brief amount of time during an upshift. If the car has a sequential shift transmission, or a dual-clutch transmission, the driver keeps the throttle flat to the floor during the shift, but the ignition gets "cut" for a micro-second to unload the gears so the shift can be completed. That is why you hear the "bang" during the shift.
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Cool. Thanks for the info.
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