Switching to V4
 

I am new to the Corvette world, just purchased a 2017 Stingray this year, currently 6000 miles on it. I am curious about when the engine changes from V8 to V4 mode. Does it always shut down the same 4 cylinders? or does it alternate which cylinders shut down? Thanks for the info!

Always the same cylinders...

Active Fuel Management (AFM), which shuts down the LT1’s firing cylinders from eight to four by disabling the valves to the cylinders. When AFM initiates, the engine turns the 6.2L V8 into a 3.1L V4, shutting down cylinders 1, 4, 6 and 7, and firing only cylinders 8, 2, 5 and 3 in that order.

Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.



2, 4, 6, 8, Passenger side from front to rear.
1, 3, 5, 7, Driver's side from front to rear


Elmer