O.S. Engines presented the new 3.5cc on-road nitro engine R2104, developed for 1/8th Scale Racing Competition. The engine features a 9-port power-plant to improve torque in low-middle power range with a redesigned DLC-coated crankshaft improved transition between low and high RPM.
The R2104 uses a new cooling head, fins enhanced for better air flow and better balance with the heat sink head anodized in two colors; black and red.
The R2104 uses the proven 21M2(B) slide valve carburetor with 8.5mm aluminum reducer like the other OS Speed Engine R2101, 2102 and 2103.
The engine will be sold alone or together with the T-2080SC silencer and the MR02 manifold.
Features OS Speed R2104
- Displacement: 3.49cc.
- Bore: 16.08mm.
- Stroke: 17.20mm.
- Output 2.8ps/2.76hp/35,000r.p.m
- Practical r.p.m.Range: 4,000-45,000 r.p.m.
- Weight: 340 grams.
Source: osengines.com