5. Turbochargers are prone to bootstrapping this tendancy is reduced by?
"The differential pressure controller reduces the unstable condition known as 'Bootstrapping' during part throttle operation . "
"Bootstrapping , then is an undesireable cycle of turbocharging events causing the manifold pressure to drift in an attempt to reach a state of equilibrium"
Thats from some random notes when I was studying for a CASA turbocharging exam. Most is very historical .
When you reach an altitude when the wastegate is fully closed the engine could also be prone to bootstrapping because the turbo is unregulated and hunting for a correct setting