 This is the O.S. 21XZ-B V-Spec Off-Road Competition Buggy Engine. The 21XZ-B delivers top-of-the-line, affordable, competition-caliber performance and is much more affordable than you might expect. If you like the power of the 21VZ-B V-Spec, the 21XZ-B provides users with improved torque and acceleration. The 21XZ-B features an improved 21J2 three needle carburetor with a 7mm venturi for fine tuned control, while retaining the easy to tune characteristics that OS engines are known for. The 21XZ-B also features a stronger crankcase and weighs less than the previous VZ-B, for improved durability and a lower center of gravity.
Features:
- Re-designed 21J2 three-needle carburetor
- 7mm venturi for fine-tuned control
- Improved fuel mileage
- Stronger crankcase
- ABC piston and liner construction
Specifications:
Displacement: 3.5cc (0.21 cu in)
Bore: 16.3mm (0.6 in)
Stroke: 16.8mm (0.7 in)
Output: 2.5hp @ 33,000 rpm
Practical RPM: 4,000-40,000
Weight: 12.52 oz (362g)
Includes:
- 21J2 carburetor
- P3 glow plug
- 7mm carb restrictor
- Exhaust seal and dust cap set
Recommended Mufflers and Accessories:
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