Always the correct part
The cooling head has been redesigned by Modelix. It’s not as low as the B2102 lower profile but it’s lighter so it keeps the center of gravity as low as the B2102 but improving its performance on high temperatures.
Unlike the previous M3X, the MXS comes with the 21 J3 carburetor. Compared to the original OS 21 J3 carb, its high-speed needle holder was redesigned for a better refrigeration of the fuel flow into the carburetor, lowering the temp of the carb, and consequently it’s more stable with a great idle stability, improves fuel mileage and overall engine performance.
Besides this, the uniball joint of the carb slide was also modified with two stoppers instead of one. With this new modified design, you can easier adjust the angle of the uniball joint without having to disassemble the engine.
This carb offers a higher accuracy tuning, a very interesting advantage to experienced drivers.
The MXS backplate has been modified. The backplate is CNC machined and made of 7075-T6 Swiss Aluminum. It’s been milled to improve the gas flow going to the piston and improving engine efficiency and performance.
Thanks to its design, you can remove the backplate without damaging the conrod even when it is on its lower position (PMI). The lateral grooves allow to easily remove the backplate without having to use any tool that can damage it.
The crankshaft of the MXS is an evolution of the DLC B2102 but with two balanced tungsten in order to increase the inertia to rotation.
The MXS comes with the original OS Ceramic bearing in the rear and steel in the front.
The engine is supplied with a 6.5mm aluminum venturi.
SLEEVE AND PISTON
The sleeve with 3 inlet port and an exhaust port guarantee a low fuel consumption with a very high but smooth and linear power.
Both, the sleeve and piston are made from a high strength aluminum bar to improve its durability.
Displacement: 3,49 cc
Power Output: 2.61 hp @ 34,000 rpm
Practical Range RPM: 4,000 - 42,000 rpm
Bore x Stroke: 16,40x16,40mm
Sleeve: 3 + 1 ports
Rear Ball Bearing: ceramic
Front Ball Bearing: steel
Crankshaft: 14 mm
Carburetor: 21 J3
Glow plug: P3 Turbo
Exhaust Position: rear
Fuel type: 25% nitro. Recommended fuel Nitrolux.
This engine is pre-broke in by Adam Drake. If there are any issues with this engine out of the box you are to contact Adam for service and or advice prior to asking BeachRC customer service. Due to the nature of this hobby and pre-breaking in engines we can not warranty anything other than manufacture defects.