OS Engines O.S. Speed 21ZX-B Spec II Ty Tessman 110% Engine | Tower Hobbies

Performance that goes above and beyond! Champion driver Ty Tessmann firmly believes in always giving 110%, and he expects no less from his power plant. O.S. shares his commitment to excellence, and the result is the Speed 21XZ-B Spec. II Ty 110% long stroke nitro engine. The improvements made by O.S. engineers paved the way for Ty to claim first place at the ROAR Fuel Off-Road National Championships, and this engine is ready to help you ascend the podium as well. The Speed 21XZ-B Spec. II Ty 110% is being produced in limited quantities, so get yours today. A real difference-maker for both buggies and truggies! Features a 7 mm venturi insert that boosts power while reducing fuel consumption. The 4 mm lower cooling head lowers overall center of gravity for improved handling. Ty’s personal involvement with the Speed 21XZ-B Spec. II engine is evident. This is the O.S. Speed 21XZ-B Spec II Ty Tessmann Edition 110% Long Stroke Glow Engine O.S. Engines. FEATURES 0.16 (4mm) lower cooling head lowers center of gravity for improved handling 21J3(B) slide valve carburetor with 7mm carb reducer that restricts airflow helping to increase the amount of torque produced INCLUDES 21XZ-B Spec II Ty Tessmann Edition 110% Long Stroke Glow Engine with Exhaust Gasket, P3 Turbo Ultra Hot Glow Plug, 7mm Carb Reducer, Decal Sheet, two Dust Caps and Instruction Manual REQUIREMENTS Glow Fuel: 10-30% nitro content, 20% recommended for break-in Tuned pipe such as the O.S Engines T-2090SC, OSMG2953 Glow Starter and Track Equipment SPECIFICATIONS Engine; Displacement: 0.213 cu in (3.49 cc) Bore: 0.641 (16.27mm) Stroke: 0.661 (16.8mm) Practical RPM: 4,000 - 42,000 Weight: 12.45oz (353g) engine only Crankshaft Size: UNF1/4-28 Distance Between Mounting Holes Same Side: 0.83 (21mm) Distance Between Mounting Holes Opposite Side: 1.45 (37mm) H