Street racer blows engine while gloating

Typically I'm not one to ostrasize anyone for blowing an engine, but these guys have it coming to them. They spot their pray, a nice teal BMW 3-series and try to dominate. However, the plan goes ary around 6,000 RPM in third gear. It sounds like the engine basically disintegrated! From what I can see, the race started to go bad immediately after the driver bounced his car off redline. It sounds cool, but most people don't understand what kind of stress this puts your engine under. Just because it has a rev limiter at red line doesn't indicate safe operation in doing so.

I believe that the bouncing rev limiter trend actually originates from rally car rotational idle which is used to keep exhaust gases flowing in order to prevent the turbo from going into negative boost. This also creates huge amounts of fire which occurs when rich exhaust meets a hot turbo. The infamous pop and cackle is directly related to rotational idle! The engine works against itself by changing timing and firing order. This creates a sound similar to the rev limiter bounce favored by street racers abroad.

Ninety nine out of one hundred times you will get away with the red line bounce, but that one time makes it totally not worth it. Do it the right way, get a turbo and rotational idle.

 Video content: Street racer blows engine

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