Tim, do a search on Rossi cobra engines, maybe this is it. This is the add I found and the picture of a sigle cylinder 30 CC engine


Part number: AXE198R21 Description: This is the Axe Rossi brand Cobra 198R21 off road competition race engine. This is one of the newest engines to come out from the Axe Rossi engine manufacturing plant, and boasts awesome all around performance. The AXE Motor Rossi Cobra engine specs are: Displacement: 3.5cc Horse Power: 3.1 HP RPM: 40800 Bore: 16.00 mm Stroke: 17.40 mm Ports: 7 / 2 Buster Exhaust System Crankshaft & Type: 14 SG Glow Plug: Standard Weight: 340 grFeatures of this engine are: Crankshaft with with tungsten inserts on the flywheel for balanced performance New carburetor with heat insulation prevents fuel vaporization New shell mold casting crankcase with a new patented intake ports system Buster exhaust system Bigger rear ball bearing Rossi engines are hand made in Italy, built to the most precise tolerances, with the finest Swiss CNC machine equipment, using the best quality materials to give you the highest performance and longest life. This engine will work with any recent 1/8th scale buggy such as the Kyosho Inferno MP7.5, Kanai 2, Kanai 3, Kyosho Inferno MP777, Mugen MBX4, MBX5, OFNA Hyper 7 Pro, OFNA 9.5 Pro, Bergonzoni Blast, Horizon SportWerks Mayhem and Thunder Tiger EB4, EB4 S2 Pro and EB4 S3.