Coming from FX Engines is the EFRA 2131 pipe and S-M manifold combo set. Specially designed and tuned for FX engines, the exhaust and manifold set will excel especially on tracks where more bottom end power is needed. The EFRA-homologated parts come laser engraved for easy identification and they come with a high-quality chrome coating for looks and wear. Included is also all necessary mounting hardware such as springs and silicone gaskets.
FX have introduced a range of low-profile engine cooling heads for their range of .21 off-road engines. Machined from high-quality 7075-T6 aluminium and coming black anodised and laser-engraved for looks, the cooling heads are available in a 6-rib variant for cooler ambient temperatures, as 7-rib head for medium air temperatures and as 8-rib variant for hot racing conditions. Using the heads over the traditional tall head will lower the overall centre of gravity and weight thanks to the low-profile design and additional weight-saving machining. To further assist with cooling the head’s black coating is machined away in the contact area between the head and the combustion camber insert.
Capricorn have introduced the ONE brand 4-dot head button for their .21 on-road engine. The combustion camber insert was designed for the use with 16 percent nitro fuel and will increase compression which results in improved engine performance when running the less powerful 16 percent fuel.
O.S. Engines have introduced their new Speed R2103 3.5cc nitro on-road engine. Developed with the forthcoming 2017 IFMAR World Championship in mind, the power plant features a newly designed crankshaft and a new piston and liner. Compared to the R2102 engine the R2103 will offer more low to mid-range torque and this is why the engine comes with a standard steel main bearing as these are meant to further improve torque characteristics.
Coming from O.S. Engines is the new Speed B21 Ty Tessmann II nitro off-road engine. The square stroke power plant follows hot on the heels of the recently introduced 110% long stroke engine and it is based on the World Championship winning B2101. It features a 5.8mm venturi insert and different from the original B2101 the Ty Tessmann II has a reshaped low-profile cooling head, of Ty’s original design, with double height vertical fins. The B21 Ty Tessmann II is available separately or including the new 90mm manifold and T-2090SC exhaust.
Novarossi have introduced their new Rolling 7-power nitro off-road engine. It features a new sleeve with seven transfer ports and exhaust boosters with the patented shape and position of those will improve internal mixture flow to optimise overall performance. Also part of the package is a tuned crankshaft whose design will reduce mixture turbulences while the special front shape improves sealing against fuel leaking. Other fears include the proven R7 conrod, a steel-filled rear cover as well as the patented, shifted composite 3-needle carburettor. The engine is rounded out by the Lighter & Lower Evolution 2 cooling head that sports a 6-bolt design, it will make for a lower centre of gravity and thanks to excessive milling it is also very light of weight.
Japanese company Nuclear have introduced the ASM Type 3 3.5cc nitro engine. It comes with a new piston, sleeve, connecting rod, piston pin and back plate that underwent a special process to reduce friction as much as possible. The piston and sleeve also show greatly reduced pinch without sacrificing compression to further up the performance with all parts being matched for optimised durability. Apart from the complete engine the con rod, piston pin and back plate are also available separately.
VS Racing have introduced their limited edition VSB01-DLC 3.5cc nitro off-road engine. The long stroke power plant is based off of the VSB01 and received a diamond-like DLC coating for the crankshaft in order to reduce internal friction and increase the life span of the crankshaft pin. Also included is a VS Spec combustion camber insert and the engine is limited to 50 pieces world wide.