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O.S. Speed R21GT 1/8 GT Engine with T-2060SC Pipe
Item No.
OSMG2097
O.S. Speed R21GT 1/8 GT Engine with T-2060SC Pipe
Item No.
OSMG2097
$679.99
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$1,099.99
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Overview
We are proudly announcing O.S. SPEED R21GT for a relatively new category 1/8 GT class. The new engine aims at IFMAR world championship to be held in the United States in January, 2020. So the design of the engine is fully conformed to IFMAR regulation. The crankcase is modified version of R2101, cylinder/piston is new design: 5 scavenging ports + 3 exhaust port, the crankshaft is also newly designed: double counter weight made of Phosphor bronze for better torque, of course the crankshaft is DLC coated to minimize mechanical friction and with silicon filler for light weight. The carburetor is also new design, 22E(B)GT double adjustment type carburetor for smooth and better response from cornering with a 7.0mm restrictor, which conform to IFMAR regulation. The cooling head is designed to optimize heat dissipation and light weight.
Video Overview
Piston & Cylinder
5-scavenging port + 3 exhaust port design is conforming to IFMAR regulation
Crankshaft
DLC coated, Silicon filler, double counter weights for powerful torque and response
Carburetor
New carburetor 22E(B)GT: Double adjust type, smooth acceleration from cornering
Product Specifications
Specs
| Bore | 0.633" (16.08mm) |
| Carb Type | Slide Valve w/7mm Restrictor Installed |
| Crankshaft Threads | UNF 1/4-28 |
| Crankshaft Type | SG |
| Cylinders | Single |
| Cylinder Type | Five Scavenging Ports, three Exhaust Ports |
| Displacement | 0.213 cu in (3.49cc) |
| Engine (Only) Weight | 13.2oz (369g) |
| Power Type | Glow |
| HP | 2.65ps, 2.61hp @ 34,000RPM |
| Muffler Type | Tuned Muffler |
| Oil Type & Content | 12-16% Synthetic Oil Mixture in Fuel |
| Plug Type | RP6 Turbo Type, Medium Heat Range |
| Product Height | Bottom/Mounting Tabs to top of Cylinder Head 3.4" (86.5mm) |
| Product Length | Backplate to Front Bearing, 2.5" (64.6mm) |
| Product Width | At Mounting Tabs 1.8" (45mm), |
| Recommended Fuel | 10-30%, 20% Nitro Content for Break-In |
| RPM Range | 4,000 - 42,000 |
| Stroke | 0.677" (17.20mm) |