Zenoah G290RC 4-Bolt Engine
Complete with carburettor and clutch. Please see below for optional engine upgrades.
- 4-bolt cylinder design for improved sealing and reduced gasket blowout
- Stronger and lighter crankcase with additional crankshaft bearing
- High performance WT-990 carburettor
- Lighter flywheel
- Metal impregnated insulator gasket for a better seal and modified cylinder hardware to better resist vibration
- 4 transfer port 36mm cylinder with a "hemi" style combustion chamber
- Redesigned fins for better cooling and larger ports
- Full circle crankshaft
Cylinder Displacement: 28.5cm³ / 1.74 cu.inch
Cylinder Bore: 36 mm / 1.42 inch
Cylinder Stroke: 28 mm / 1.1 inch
Power: 3.5HP @13,000 RPM
Torque: 1.23 ft-lbs (1.68 N-m) @10,000 RPM
Timing: 30 degrees BTDC @ 8,000 RPM
Compression Ratio: 8.9:1.
Fuel: 91 octane (using the R+M/2 octane rating method) or higher mixed 25:1 with 2-stroke oil
Carburettor: Walbro WT-990
Ignition System: TCI
Spark Plug: NGK CMR7H
Start System: Recoil Starter
Baja 5B/5T/5SC, Losi 5ive-T/5ive-B/DBXL, Kraken Vekta.5, as well as a wide variety of other RC cars, planes, boats, and helicopters.
Losi 5IVE-T/TLR, 5IVE-B or Desert Buggy (DBXL) - you must use your stock fan cover and clutch.
FG installations may require some modification to the crankcase for proper fitment.
Engine Upgrade Options
Carby - Bearing Modified
Sealed Poly-A-Mide bearings installed on both ends of the throttle shaft for the ultimate sand ingress protection. Also increases the life of the throttle shaft and bore.
Carby - Competition Modified
Sealed Poly-A-Mide bearings installed on both ends of the throttle shaft for the ultimate sand ingress protection. And additional upgrades to increase fuel and air flow.
Carby - Fully Modified
The same modifications as the Bearing and Competition modified options with additional changes to increase cfm and response time. Will produce 500+ rpm to a fully modified engine with a boost to the low and mid.
Clutch - Performance
Fully balanced and lightened for quicker response time and cooler running.
Flywheel - Fully Modified
Lightened and balanced for quicker acceleration and higher rpm without sacrificing integrity. Will not fly apart at high rpm.