Features that influences the outstanding performance of the factory tuned O.S. SPEED 21VZ-B V-Spec engine.
A special DLC coated crankshaft with a pressed in Tungsten disc in the counterweight for improved balance and a lower level of vibration.
A heat sink cylinder head precision machined from magnesium. This is the first time any model engine manufacturer has equipped an engine with a heat sink head machined from magnesium which is about 15% lighter than aluminum.
A special T-2060WN tuned silencer developed especially for the Speed 21VZ-B V-Spec engine utilizes a welded on pressure nipple.
Precision ceramic ball bearing is incorporated which greatly reduces frictional losses -the same type of bearings that are used in full size racing car engines.
Three carburetor venture inserts are available in 7, 8 and 9mm throat diameters. The inserts have a red anodized finish - the O.S. SPEED brand color with throat diameter laser marked on each insert.
In 1/8th Scale Gas Buggy Racing more than high power alone is involved. The engine must have excellent ease of handling and operating characteristics, accelerate smoothly and respond to the driver's smallest throttle stick movements. Tires with maximum grip for the terrain and road surface being used are another contributing factor as is the driver's ability. These factors combined result in the driver placing in the winners circle.
In the 1/8th Scale Off-Road Buggy World Championships held in Jakarta, Indonesia this past August 28th through September 3rd, the various makes of engines had a chance to show which was superior. Mark Pavidis, who became World Champion, did this while running an O.S. SPEED 21VZ-B engine. His success was owed greatly to the high quality features of the standard MAX-21VZ-B V-Spec whose performance had been increased by special factory tuning. Among the many special features incorporated in the O.S. SPEED 21VZ-B V-Spec engine are a black anodized finish crankcase, a Magnesium heat sink head which is lighter and runs cooler, a specially coated crankshaft, a ceramic bearing and a Tungsten weight pressed into the crankshaft counterweight for added balance and smoother operation. These features in conjunction with a double adjustment carburetor result in an engine that under such exacting conditions, reaches the pinnacle of World Competition. This secret weapon will be sure to catapult your 1/8th Scale Off-Road Buggy into a World Class vehicle.
The IFMAR 1/8th Scale Off-Road Buggy World Championships were held in the hot and humid climatic condition of Jakarta, Indonesia which presented a real challenge for both engines and drivers. O.S. supplied O.S. SPEED factory tuned 21VZ-B V-Spec engines to the support drivers. Mark Pavidis of the USA and his O.S. SPEED 21VZ-B V-Spec engine proved to be a winning combination as no one else came close to him during practice and trial runs with Mark ending up as Top Qualifier. In the final race, out of ten drivers, four used O.S. SPEED 21VZ-B V-Spec engines.
When the final race started the ten top drivers in the world were pitting their skills against each other and the intense battle was on. Mark got off to a slow start but as the race progressed his driving skill and powerful engine gradually moved him ahead. 45 minutes of racing the fierce battle for 1st place was between Mark Pavidis and Scott Hughes, also from the USA, and also using an O.S. SPEED 21VZ-B V-Spec engine. In the end it was Mark, more experienced driver, that came out on top and became the 2006 World Champion. For Mark Pavidis, this victory was especially meaningful as evidenced by his tears of joy during the award ceremony. Of course, Mark's victory using the O.S. SPEED 21VZ-B V-Spec is meaningful for O.S. Engines as well.