The DeLorean time machine’s fuel injection manifold.

"Marty turned the key in the ignition. The engine whined, but then it turned over! Marty cheered and Doc whooped. The DeLorean would run on alcohol! / There was a tremendous explosion at the back of the car, like someone had fired a gun. Marty cut the ignition as Doc ran back to investigate. "Damn!" Doc yelled as he pulled up the rear hood. "It blew the fuel injection manifold!" He looked at the bottle still in his hand. "That hooch peddler must put more in his stuff than just whiskey!" He frowned as he peered in at the smoking wreckage. "It'll take a month to rebuild it!" / "A month?" Marty despaired. "Doc, we haven't got a month!" He climbed back out of the car. "You're gonna get shot on Monday!" "
—From Back to the Future Part III by Craig Shaw Gardner (quote, pages 89 and 90)

The fuel injection manifold  was a key component needed to drive the DeLorean time machine and getting it to 88 m.p.h. 

History

In 1885, Dr. Emmett Brown received a strong whiskey from the town bartender, Chester, hoping it would have a similar effect to gasoline.

However, when Doc poured the whisky into the gas tank and Marty McFly tried the ignition, it ended up blowing the fuel injection manifold — the damage to which, according to Doc, would take a month to rebuild.

Appearances

Community content is available under CC-BY-SA unless otherwise noted.