Here's A Visual Demonstration Of A V8's Firing Order Using A Bunch Of Lights And Relays

To demonstrate the uneven firing order of a conventional cross-plane crankshaft V8, this guy set-up an amazing display using lights and relays

from Car Throttle https://www.carthrottle.com/post/heres-a-visual-demonstration-of-a-v8s-firing-order-using-a-bunch-of-lights-and-relays/
via Car Throttle