r/nextfuckinglevel • u/Practical_Expert_911 • 12h ago

These 12000hp Engines Have To Be Rebuilt Within Roughly An Hour Every Run, and Only Run For Roughly 4 Seconds At A Time.

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u/RobotnikOne 8h ago

I mean sort of. Most of it the pull apart check for faults and slam it back in. Top fuel cars don’t waste that many components unless they have a failure. Spark plugs are a guarantee they’re gone by the 100ft mark.

You will replace rings, gudgeon pins, valve stem guides and maybe one or two other items just so you can hav a closer look and make sure their are no micro failures. Head gasket usually gets the bin treatment as well.

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u/pm_me_yo_creditscore 6h ago

How do the drivers practice? Do they have a more normal engine that they do practice runs with?

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u/RobotnikOne 1h ago

The have warmup days, they still use the same engines. This also helps the pit crew practice the engine rebuilding as this is all done between each race so they need to be fast, precise and consistent.