The Axial 28RR Spec 1 is a .28 cubic inch big block engine featuring a machined cast aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 9.0mm slide carburetor (including 8.0 & 8.5mm optional venturis) with a composite body for better performance at higher temperatures.
The carburetor on the Axial 28RR features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Axial Turbo Button head available.
The Axial 28RR Spec 1 is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most after-market shaft drive starting systems.
Axial 28RR Features:
- Lower CG engine head with increased cooling capacity
- True ABC construction
- Standard button head (optional turbo head available)
- Pull start â€“ no starter box or roto-start needed (optional bumpstart back plate or roto-start backplate available)
Discuss the new Axial 28RR Spec1 nitro engine in our Power Plants forum.