Axial .28 Spec 2S Engine
The Axial 28 Spec 2S is a .28 cubic inch big block engine. Replacing the original Spec 1S, the Axial .28 Spec 2S features a larger machined billet aluminium heat-sink head for increased surface area and cooling, adjusted timing for increased RPM (37,500 vs. 36,000), and a three needle slide carburettor that includes 8.0. 8.5, & 9.0mm venturis.
Standard Features Include
- Dual bushing aluminium connecting rod
- True ABC chrome sleeve construction for durability.
- Easy to tune carburettor
- This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Engine Specification
- Size: .28 cubic inch/4.6cc
- Maximum RPM: 37,500 RPM
- Bore: 18.6mm
- Stroke: 16.9mm
- Construction: ABC (Aluminium Brass Chrome)
- Heat-sink Head: Axial Green
- Carburettor: 9.0mm composite slide carburettor (includes optional 8.0 & 8.5mm venturis)
- Carburetor Adjustments: 3 Needle, Flush Settings
- Case: Black aluminium, rear exhaust
- Connecting Rod: Dual bushing
- Sleeve: 6+2 port
- Starting system: Pull starter
- Recommended Glow Plug: Standard long glow plug
- AX0320 .28 Spec 2S Engine (Green) Price: $205.00 MSRP: $130.00
- AX1116 .28 Spec 2S Heat Sink Head (Green) Price: $48.00 MSRP: $35.00
- AX1117 .28 Spec 2S Piston/Sleeve Set Price: $70.00 MSRP: $50.00
- AX1118 .28 Spec 2S Cylinder/Piston/Connecting Rod Set Price: $95.00 MSRP: $70.00
- AX1119 .28 Spec 2S Crankshaft Price: $32.00 MSRP: $25.00
Source: Axial Racing