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>It's beyond me how they could sell this car with a touch screen but without a boost gauge.

Back in the days of our 80's datsuns, when upping the boost you definitely need to keep an eye on it. These days, ECUs have that under control, there will be a MAP sensor that monitors pressure and boost cut / limp mode will follow any overboost situation.

My late 2000s BMW for example had a weird compound turbo setup that, to its credit, could build 23psi in a second but if any of the actuators failed could be disasterous for the baby turbo. The ECU was smart enough to measure the normal boost profile and would throw a fault code if it was over/under spooling. The control logic was impressive, I was happy with the response and the intake was kept FOD free, even on the day one of the actuators failed open.



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