Turbo timer's !!!!!, do we need them ???? Options

[popstar]

Turbo timer's as i understand are built into an alarm system so you can leave your car still running to let the turbo cool, while you go and watch the game or whatever...................

everyone tells me i should fit one to my '4', i'm thinking that if this is so important, then Mr toyota would have built one in to the cars central locking system, or not let you turn the engin off before the turbo is cool, thus saving the turbo from cracking................

i can't believe that a turboed car needs this unless you've been giving it some really pounding and then just stop it in -20........

so tell me do i need one and if so why ? and why is one not installed as standard if it's important ??????

thanks

[Supersprynt]

Turbos get extremely hot just by normal driving. And its true about the better oils nowadays, but still not a bad thing to have.