O.S. ENGINES 0.21ci TM Nitro Engine suit T-Maxx/ Jato/ Nitro Sport & Nitro Rustler – OSM12240
Overview
This is the O.S. Max 21TM Engine with T-Maxx Manifold. Direct fit for the 2.5 and 3.3 Traxxas T-Maxx monster trucks.
Features
- Adapts perfectly to the Traxxas EZ Start or pullstart systems with no modifications
- Included manifold is specially designed to fit directly into the TMaxx
- Traxxas’ clutch assembly bolts right to the crankshaft with no modifications
- Oversized cooling fins on crankcase helps to keep engine cooler
- Three needle slide valve carburetor with fins to help cool the fuel as it enters the engine
- High-performance long reach O.S. glow plug suitable for off-road applications that require constantly varying speed
Specs
- Displacement – 0.21 cu in (3.4cc)
- Bore – 0.669″ (17mm)
- Stroke – 0.590″ (15mm)
- Practical RPM – 3,000 – 35,000 RPM
- Output – 1.8 PS, 1.77 HP/29,000 RPM
- Weight – 8.57oz (243g)
- Distance between mounting hole centers same side – 0.43″ (11mm)
- Distance between mounting hole centers opposite side – 1.2″ (31.4mm)
- Distance from end of crankshaft to drive washer – 1.03″ (26.3mm)
- Distance from center of engine to front bearing – 1.4″ (34.8mm)
- Width of mounting flanges – 1.5″ (39mm)
- Length of exhaust flange – 0.24″ (6mm)
- Height/backplate mount to top of cylinder head – 3.3″ (85.3mm)