6MIK has presented their new Optima ‘Booster’, a rear cover for Team Orion CRF engines. This optional rear crankcase cover features two internal channels increasing engine efficiency by optimally feeding the ports. In addition, thanks to a mixture less impacted by the movement of the conrod, the engine offers improved idle stability, fuel mileage (+ 30 seconds Refuel) and overall engine performance (+ 20 % Torque).
Archive | Team Orion
Team Orion CRF 21 V4 Competition Nitro Engine
17 Nov 2018
By Xtreme Racer in Engine, Team Orion
Team Orion has announced their new CRF 21 V4 3.5cc off-road competition nitro engines for 1/8th scale Buggy e Truggy. The two engines share the same design but differ in ports (7-port Factory WS Edition and 3-port Racing). The 7-port engine has a better progressive throttle response and top speed, while the 3-port variant has better torque.