O.S. Engine 21VZ-B V-Spec-T (P)  [OSMG2068]

FEATURES:

• Hardened, chrome-plated, 4-port, cylinder and liner for high durability and endurance
• Machined metal piston features parallel rings that trap fuel oils and use them as a seal to enhance compression and boost energy
• Reshaped crankcase core ensures smoother venting and more consistent performance
• Slide valve carburetor with 8mm and 9mm carbohydrate restrictors allow tuning to specific track conditions, low-end needle adjusts from side to side for maximum adjustment simplicity
• V-shaped two-piece turbo head design provides fast heat dissipation

INCLUDES:

• One .21 VZ-B V-Spec-T (P) racing motor w/21C carburetor
• One P3 Ultra Hot Turbo plug
• One guide w/OS decal
• One additional head shim/gasket(others gasket is pre-installed)
• One 8mm carbohydrate restrictor
• One 9mm carbohydrate restrictor
• One exhaust port seal band
• Two carb plastic gaskets
• One carb address
• One exhaust cover

NEEDS:

• #203 Air Cleanser Assembly, OSMG2360
• Gas with about 16% lubricant and 15%-30per cent nitro.
• The majority of the fuels we carry fulfill or meet or exceed the lubricant content required for maximum performance and maximum motor life.

SPECS:

• Practical RPM: 3000-40,000
• Production: 2.48 bhp @ 33,000 RPM
• Bore: 0.654in
• Stroke: 0.630in
• Weight w/o Muffler: 12.7 oz (360g)
• Height from crankcase bottom to top of cylinder mind: 110.6mm (4.4")
• Height/crankshaft center to top of cylinder mind: 95.3mm (3.8")
• Width including mounting ears: 45mm (1.8")
• Width excluding mounting ears: 30.8mm (1.2")
• Width between mounting holes exact same part: 21mm (.83")
• Width between mounting holes opposite side: 37mm (1.5")
• Cylinder mind diameter: 57.2mm (2.3")
• Length of exposed pilot shaft/crankshaft: 29.6mm (1.17")
• Internal thread size at end of crankshaft: 3mm

COMMENTS:

• Turbo glow plugs do not require a copper gasket.
• Because of the carbohydrate restrictors, the driver can select either low fuel comsumption or high energy, enabling an array of motor control. Use is really as follows:
  • -9mm Blue: Fitted with carb when it makes the factory. suited to high-speed and flat courses that want power.
  • -8mm Red: provided with motor. Appropriate technical and bumpy courses and when less fuel usage is more crucial.