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Engine Overview:

The SH Engines PT21A1-XB2G Off Road 3.5cc (.21) Buggy Nitro Engine brings a revolutionary change to the world of competitive off-road racing. This engine, developed by Golden Lion Enterprise Co., Ltd., introduces the groundbreaking C.W.C. (Changing the Working Angle of the Connecting Rod) design, which delivers unmatched low-to-mid-range torque and horsepower.

Tested and proven at the 2023 FEMCA 1/8 Nitro Off-Road competition, this engine claimed the top honors, setting a higher standard for power and performance in the industry. Built with SH Enginge’s highest technology and precision manufacturing capabilities, the PT21A1-XB2G offers peak performance that outshines conventional engines. Its superior maneuverability and instant power response make it the ideal choice for racers looking to dominate the track. Whether competing at the highest level or just seeking better results for club racing, the PT21A1-XB2G is designed to give you the competitive edge needed to do so!

Features:

  • Revolutionary C.W.C. design for enhanced low-to-mid-range torque
  • Tested and proven in the 2023 FEMCA 1/8 Nitro Off-Road competition
  • Precision manufacturing for peak performance
  • Superior maneuverability and power response on the track

Specifications:

  • Displacement:3.49cc
  • Bore:15.88mm
  • Stroke:17.60mm
  • R.P.M.:36,000 rpm
  • Weight:356g
  • Application:1/8 Off-Road Buggies

Includes:

  • (1) SH Engines PT21A1-XB2G Off Road 3.5cc (.21) Buggy Nitro Engine

This product was added to our catalog on September 10, 2024

Cullin Hartle Verified Owner Sunday, Jan 12 2025 (9 months ago) SH Engines PT21A1-XB2G Off Road 3.5cc (.21) Buggy Nitro Engine phenomenal engine that makes great power. zero issues running with any of the other folks in the 1/8 open nitro buggy classes. only downside is the engine is a touch more picky to tune. once you get to know the setup though, its pretty straight forward. 1 customer found this review helpful. View all reviews

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