The first two are for my trucks
This one here is the one I use, and it's very efficient, (37.70% to be exact )
The second one is the High Output version, which, despite having 55 less ft/lbs of torque less than the 5.0L cummins V8, actually has (2) more hp at 3300 rpm (the cummins' redline), thanks to its extremely flat torque curve.
The reason I am not using this engine here is because of it's poorer efficiency (about 6 percentage points less than the first engine).
(I might end up building a heavy duty version of my truck and sticking this engine in there, though)
(Both of these are 4.6L)
BigBlackNerd - Eco Torque i6.zip (21.5 KB)
These next engines are for my Roadsters:
I'm really proud of that turbo motor, though, >200 ft/lbs of torque from 2500 to 8500 RPM
They're pretty ineficcient, but they are used in very light cars, (less than 2500 lbs).
(As you can tell, I really love my I6's; They're so easy to turbo!)
BigBlackNerd - I6Sport.zip (50.6 KB)