O.S. Engine Speed Tuned 21VZ-B V-Spec II World Edition  [OSMG2070]

The O.S. Speeds controllable power faculties and surprisingly lower fuel consumption had been a contributing element to Atsushi Hara winning the Worlds in Charlotte, North Carolina. Atsushi Hara's run times between pit times were eight mins and thirty moments in comparison to competitors at seven minutes and thirty moments. This along with his fabulous driving allowed Atsushi Hara in order to make one less pit stop and win the Worlds.

18 machined holes inside cooling head for lighter fat and much more efficient cooling.
Hardened, chrome-plated 4-port liner.
Machined piston with synchronous bands.
Specifically coated crankshaft and back ceramic bearing counter use and friction. The Crankshaft is silicone filled up with accuracy to greatly help with air and fuel movement through the motor. Tungsten weights for added balance at greater rpms.
Reshaped crankcase core.
21JS slide-valve carb with 6 mm, 6.5 mm & 7 mm carbohydrate restrictors.
P3 Ultra Hot Turbo plug included.
"World Champion" engraved into the mind and crankcase.

SPECS

• Inventory Quantity: 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
• Production: 2.5 hp @ 34,000 rpm
• Body weight: 12.3 oz (349 g)
• Includes: 6 mm, 6,5 mm & 7 mm carbohydrate restrictor