O.S. Engine 1583 Speed 21VZ-B V-Spec WC Edition Motore per RC Automodelli
Speed Tuned 21VZ-B V-Spec II World Edition
The newest edition of a popular powerhouse!
Bolt in the 21VZ-B V-Spec II and enjoy performance so advanced, it's almost unfair! In addition to special factory tuning, this engine also boasts several other "tweaks" that took it to the 2008 World Championships. If you're serious about winning, get the engine that's designed to dominate 1/8 scale: the Speed Tuned 21VZ-B V-Spec II World Edition. It's your secret weapon for all-out assaults on track records!
The O.S. Speeds controllable power characteristics and surprisingly lower fuel consumption were a contributing factor to Atsushi Hara winning the Worlds in Charlotte, North Carolina. Atsushi Hara's run times between pit times were eight minutes and thirty seconds compared to rivals at seven minutes and thirty seconds. This along with his fabulous driving allowed Atsushi Hara to make one less pit stop and win the Worlds.
18 machined holes in the cooling head for lighter weight and more efficient cooling.
Hardened, chrome-plated 4-port liner.
Machined piston with parallel rings.
Specially coated crankshaft and rear ceramic bearing prevent wear and friction. The Crankshaft is silicone filled with precision to help with air and fuel flow through the engine. Tungsten weights for added balance at higher rpms.
Reshaped crankcase core.
21JS slide-valve carb with 6 mm, 6.5 mm & 7 mm carb restrictors.
P3 Ultra Hot Turbo plug included.
"World Champion" engraved into the head and crankcase.
Stock Number: OSMG2070
Displacement: .21 cu in (3.46 cc)
Bore: 0.654 in (16.6 mm)
Stroke: 0.63 in (16.0 mm)
Practical rpm: 3,000-40,000
Output: 2.5 hp @ 34,000 rpm
Weight: 12.3 oz (349 g)
Includes: 6 mm, 6,5 mm & 7 mm carb restrictors