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Originally Posted by lukevanoort
I disagree, if an engine is robust enough to deal with nearly tripling the stock power without problems during normal driving, then that enginge must be very stong. Racecar engines take nutty RPMs and/or make nutty power, but if you took one, and brought it to street spec powerwise keeping the same mechanical components it'd be untochable. This is basically the same idea.
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Race car engines are torn down and rebuilt or replaced between races. Due to the fact they're run so close to thier limits they take heavy wear and most, if not all, teams won't take the chance of something happening to the motor.
There are still plenty of these "fresh" motors that blow though. Just watch a few races and you'll see that not every car makes it to the end.
GM, Ford, and Chrysler made some real good motors and still are. Tripling the boost and seeing if an engine can handle it isn't a true test of robustness. Sure it may run without any problems but hows it going to be holding up after 70k miles? That motor may only last for 90k with the boost but if it was still stock it may last for 180k.