Ultimate Engines M5S Ceramic Team Edition
At Ultimate Racing we wanted to go a step further and offer our customers the possibility of purchasing fully broken-in and ready-to-race engines without the need for any additional break-in on track, i.e. engines that can be used in the most demanding competitions as you receive them, directly from the box.
Pre-Breaking engine.
To ensure quality and that all "Team Edition" engines are broken-in exactly the same, we have evolved a fully monitored break-in bench where temperature, RPM and break-in time are controlled at all times. The whole break-in process is performed with the engine perfectly lubricated to minimize the loads and wear of all the parts, significantly increasing its useful life.
There are many manufacturers that offer pre-break-in services performed on benches with propellers. The problem is that this method only works as a pre-break-in. It is still necessary to continue breaking in the engine on the track.
This is the Ultimate M5S based on the OS B2103 Type R engine. This 5-port long-stroke engine offers great power at medium-high speeds. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. It comes with ceramic rear bearing, the 22E carburetor and an O-ring under the cooling head to reduce the vibrations and preventing dust from entering the engine.
This engine has been developed for medium to high speed tracks.
Features:
- The long-stroke off-road engine put a high value on beasty power in mid-high speed range.
- The cooling head, carburetor, crankcase cover plate are designed new.
- The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing.
- Ceramic rear bearing.
- O-ring under the cooling head for reducing vibration and preventing dust from entering the engine.
- A newly designed 22E carburetor for producing high power.
Specifications:
- Displacement 3.49cc
- Bore 16.27mm
- Stroke 16.80mm
- RPM 4000 - 42000
- Max output 2.64hp/34000 RPM
- Weight 352gr
- Recommended exhaust: UR352141 o UR352142
- Port 5-port
