Ultimate Racing introduce a nice new addition to their range of electric connectors, the 5mm dual battery plug. This connector is the simpler and safer way to connect two 2S batteries together for being used as a 4S pack without using any wire. Sold as a pair.
Modelix Racing have introduced the new Ultimate Racing M4R V2.0 nitro off-road engine. The 4-port power plant utilises a tuned crankshaft and offers linear power supply at both low and high RPM combined with improved fuel mileage, exceptional performance and reliability. The main changes from the previous version are the new cooling head design as well as the last evolution of the carburettor which is even easier to tune and more stable at different RPM compared to the previous version. The cooling head is also used on the M5 engines and it is keeping the engine cooler for improved performance at high temperatures. Its lightweight design ensures a low overall centre of gravity while the diameter of the head’s central bore has been reduced for more reliable temperature measurement as the new design ensured temp guns will not touch the glow plug. The composite carburettor of the M4R V2.0 is made by Novarossi and of a reverse type with a sliding throttle valve. It provides high idle stability, more precise tuning and higher mid/top range power.
Modelix Racing have announced the release of the new Ultimate Racing M3X V2.0 3.5cc nitro off-road engine. Like its predecessor M3X, the V2.0 is based on the square stroke O.S. Speed B21 Ty Tessmann II edition engine. The engine has been specifically designed for maximum power, performance and tuneability while offering super smooth linear power over the whole RPM range. The carburettor, crankcase and crankshaft have been developed to improve fuel consumption while the cooling head has been redesigned by Modelix. It is not as low as the B2102 lower profile but it is lighter so it keeps the centre of gravity as low as the B2102 while improving its performance in very high temperatures. Unlike the previous M3X, the V2.0 comes with the 21 J3 carburettor. Its high-speed needle holder has been redesigned for a better fuel flow cooling, lowering the temp of the carb, offering improved idle stability, fuel mileage and overall engine performance. In addition, the uniball joint of the carb slide has also been modified with two stoppers instead of one. With this new modified design, racers can easier adjust the angle of the uniball joint without having to disassemble the engine. Also the original design of the O.S. backplate has been modified. It has been milled to improve the gas flow going to the piston and the backplate now is made of 7075-T6 Swiss aluminium to improve durability of both the conrod and backplate. 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.
Coming from Modelix Racing are the updated Ultimate Racing EFRA 2141 and EFRA 2142 Off-road Super Strong exhaust systems. On both sets the location of the pressure tap has been modified for better performance and both come with the Fast-Lock pipe and manifold connecting system for easy and reliable connection of the exhaust pipe and manifold. Performance-wise the EFRA 2141 pipe provides a precise and linear throttle response in the low to mid RPM range with great top end speed while offering an easy to control power curve for very demanding tracks with sharp corners and hard to clear jumps. The EFRA 2142 set provides a precise and linear throttle response in the higher RPM range with a great top end speed, making it the perfect choice for big tracks with long straights where high top speed is needed.
View the EFRA 2142 system here
Coming from Ultimate Racing are new engine and exhaust combos using the M3X and M3R engines. Both come including the Ultimate Racing 2141 pipe and manifold exhaust, the Compak clutch system with aluminium shoes and 1mm springs as well as 13T vented clutch bells and Ultimate Racing bearings. Also included is a suitable air filter with pre-oiled foams.
Source: Modelix Racing [modelixracing.com]
Modelix Racing have introduced the new Ultimate Racing M3X square stroke 3.5cc nitro off-road engine. The O.S.-based power plant is of a 3-port design and was developed to produce maximum power while still offering exceptional tuneability and a linear power band. It comes with a high-quality steel rear bearing and a tungsten-balanced and silicone-filled crankshaft and is meant to be a more budget-friendly alternative to the M3T engine.
View a list of the specifications and another image here
Next in the line of Ultimate Racing’s new LiHV batteries are two 5800mAh and 4000mAh shorty packs. First up is the beefy 5800mAh variant that measures 95x47x25mm and that weighs in at 218g. Built from high-performance 120C high-voltage cells the battery is ideal for both Modified and Stock racing and its high capacity also allows to use it as a lightweight dual 2S setup in 1/8th buggies and on-road cars. Lighter and slightly smaller is the 4000mAh variant that measures 92x47x18mm, weighing in at 144g. The low centre of gravity pack also utilises 120C cells for high power and durability and it is the ideal choice for 1/10th off-road and on-road cars. Both of the above batteries are housed in protective hardcases and the utilise 5mm connectors.
Modelix Racing have introduced the new Ultimate Racing 8500mAh and 7000mAh LiHV battery packs. The standard-size batteries are built using high-quality silicon graphene cells for a low internal resistance and exceptional power supply in both modified and stock racing classes. The 8500mAh variant is 25mm tall and weighs in at 305g while the 7000mAh low-profile battery is 22mm high, weighing in at 278g. Both utilise a protective hardcases and high-current 5mm connectors.
