OS MAX-21XZ-B VER.II

 137.79/0.00728897 0.00699601

os max vz

This is the O.S. 21XZ-B VII Off-Road Competition Buggy Engine. The 21XZ-B VII is light, cool running, with a low CG. Delivering power comparable to the Speed Spec II, the 21XZ-B VII exceeds expectations at a lower price. 1/8 scale drivers looking for a performance advantage will find it with the 21XZ-B VII powerhouse!

Features:

  • Performance that rivals that of the acclaimed Speed 21XZ-B Spec II
  • Shares the same piston, liner and con rod as the Speed version
  • Lightening holes in the cylinder head reduce overall weight
  • Other enhancements include a lower CG and improved cooling
  • A 22B2 single needle carb makes tuning a breeze
  • Optimized power band
  • Silicone filled crankshaft with tungsten counter weights
  • Blue anodized head
  • Incredible throttle response
  • 7mm carb reducer is included

Specifications:
Displacement: 
.213 cu in (3.49 cc)
Bore: .641 in (16.27 mm)
Stroke: .661 in (16.8 mm)
Practical RPM: 3,000-41,500
Power Output: 2.7 hp @ 34,000 rpm
Weight: 12.77 oz (362 g)
Includes: 2282 carburetor, 6mm and 7mm carb restrictors, P3 glow plug, exhaust seal and dust cap set

OS FR7-420 Sirius7 7-Cylinder Radial 4-Stroke Engine

 

OS MAX-21XZ-B VER.II

 137.79/0.00728897 0.00699601

SKU: OSM12183 Category: Tag: