
Originally Posted by
hinDMaxsiado
You said it right Sir Ry, it's a straight-penta! And people will love the ride, you bet! ;)
The only other manufacturer that makes a straight-penta is Volvo, for its marine products. They are reputed for very smooth ride.
In fact, naturally, pentas are smoother than our straight-4 diesels (DMax, Hilux, Strada, present-day Ranger, Navara, BT-50, Foton, etc) and against the V6, where both of these engines needed two-balancing shafts that rotates hand-in-hand with their cranks. The angle of throws in our straight 4's is 90-degree apart from each other, while the V6 is inherently imbalanced (a cut-off V8 crank, or an incomplete V8-crank if you look at it).... The straight-penta? 72-degree throws ;)
Only a straight-6 could beat a penta-cylinder where there is still no torsional issues in a crank. BMW makes straight-6 engines and they are vaunted for super-smooth and powerful ride. They don't utilise balancing shafts, thus some of the engine power is not wasted into rotating these shafts by almost as much as twice the speed of the crank.