This is the EB Tuned Trinity ExTech "II" .21 Off-Road Competition Buggy Engine. The new “ExTech Nitro” Sirio based engine line is built in Italy to the highest tolerances using all the latest nitro motor technology and high tech materials.
This high end Italian built engine from Trinity, is an completely new nitro engine line for serious 1/8th off-road racing, especially for the racer that demands the best.
From the new coating for the crank developed especially for Trinity to the “square”, shorter stroke design, ceramic rear bearing, smaller crank case volume which vastly decreases fuel consumption, to the new head button squish band. Trinity and Sirio have teamed up to provide the most power, smoothest power band and best fuel management on the track today.
Features:
These are the same engines and tuning that is used by our 1/8th off-road racing team. All engines are tuned to team specs. The tuning process includes the following steps.
- Engines are blueprinted and hand assembled to guarantee precision parts fit, longest engine life and best possible performance.
- Carburetors are inspected for damaged o-rings, and defects. Carburetors are then Flow Bench Tested and metering valves pre-set.
- Engines are Broken-In with 500cc of Trinity Break-In Fuel and ready to be Race Tuned.
- After Break-In, a static compression reading is taken to insure proper Piston Sleeve fit. Engines must read 110-120psi to be with-in spec.
- Each engine is then Dyno Tuned with Trinity 30% Platinum, ExTech 2013 pipe, and ExTech #6 Turbo plug. Dyno Tuned runs must match original baseline engine to be acceptable as a Race Prepped engine.
Specifications:
- Displacement: .21/3.49cc
- Bore: .643"/16.22mm
- Stroke: .656"/16.80mm
- Porting intake: 5+2
- Porting exhaust: 3
- Crankshaft: SPT/SG 14mm Bi-Turbo
- Rear Bearing: Ceramic
- Carburetor: Slide Composite 9mm with removable Venturi 7mm
- Glow Plug: Turbo
- Usable RPM Range: 5,000-40,000 RPM
- Weight: 366g
Recommended Pipes:
ExTech 2013 for the best bottom-end power and throttle response.
ExTech 2057 for smoother bottom and harder pulling Mid and Top rpm.
Recommended Glow Plugs using 30% Trinity Platinum Fuel:
Turbo #5- High Humidity Days / Outside Ambient Temp Range 50*-80*
Turbo #6- Hot and Low Humidity Days / or High Altitude Racing / Outside Ambient Temp Range 70*-100* |
