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Old 03-29-2017, 01:20 AM   #7871
riboyster
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Drives: 2013 Scion FRS
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Bunny hop / slight hesitation is a hardware limitation of the kit, not a tuning problem. It happens because the bypass valve is open until certain pressure parameters, resulting in less effective boost.
When it closes it causes a surge of power as the supercharger goes into full boost, which resonate slightly in the drivetrain tension.
Also the valve will flutter if it closes while the motor is under a certain load. Its going to happen regardless of the tune.
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