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TheEnemy · 06-23-2013, 10:37 PM

There are a couple of things going on there.

First most engines have their best BFSC at about 2000 rpms give or take.

Second at full throttle most engines run a little rich to prevent detonation.

06-23-2013, 10:37 PM	#3 (permalink)
TheEnemy The road not so traveled Join Date: Jan 2010 Location: New Mexico Posts: 680 The Truck - '99 Nissan Frontier xe 90 day: 25.74 mpg (US) The Ugly Duck - '84 Jeep CJ7 Rock crawler Thanks: 18 Thanked 66 Times in 57 Posts	There are a couple of things going on there. First most engines have their best BFSC at about 2000 rpms give or take. Second at full throttle most engines run a little rich to prevent detonation.