[jperras]

If you go back further than that, teams used to destroy entire engines for a single qualifying.

The BMW turbocharged M12/M13 that was used in the mid-eighties put out about 1,400 horsepower at 60 PSI of boost pressure, but it may have been even more than that because there was no dyno at the time capable of testing it.

They would literally weld the wastegate shut for qualifying, and it would last for about 2-3 laps: outlap, possibly warmup lap, qualifying time lap, inlap.

After which the engine was basically unusable, and so they'd put in a new one for the race.

[gnatolf]

Current examples would be drag racing cars that have motors that are designed and used in a way that they only survive for about 800 total revolutions.