Alpha Plus Ryan Lutz WORLDS Edition Engine .21 * It has finally arrived! After nearly a year of refinement and perfecting the Ryan Lutz Worlds Edition Engine has arrived and is ready to transform your 1/8th R/C car! * Here is my verbiage about this new engine: * Introducing the Alpha Plus â€œRyan Lutz Worlds Edition Engineâ€. After the much greater than anticipated success of the current version of the â€œLutz Edition Engineâ€, Alpha Plus and Ryan Lutz have worked hard to bring it to the next level. The goals in developing this next gen of the â€œLutzâ€ engine were to increase durability, drivability, and as always fuel mileage. There are a number of changes that have been done that will achieve just that. First change is a new crankshaft with the name Dynamic Equilibrium Crankshaft. Great thought went into this Patented DEC (Dynamic Equilibrium Crankshaft) with key features including a stronger crankpin that is much more resistant to wear. But the biggest innovation is Alpha Plus developed a way to perfectly place a brass weight into the silicone filling in the crankshaft. This has been done to perfectly balance the crankshaft and produces a smoother running engine with increased fuel mileage and a smoother drivability. The next change is the ConRod, which is being made out of a better material and has been made ultra resistant to wear and tear. Finally a change to the crankcase with increased material strength among other minor revisions to improve durability even further. So there you have it. The Alpha Plus â€œRyan Lutz Worlds Edition Engineâ€ is taking it to the next level. This engine will serve all skill levels extremely well from the beginner all the way to the seasoned pro!