235 c.c.OF PURE POWER
Engine developed for competitions, bi-place PPG, and trikes.
BLACK BULL is studied and projected in order to satisfy all pilots need expecially in terms of light weight, power, and maximum reliability.
TECHNICAL FEATURES
- Single cylinder air cooled
- Two stroke
- Bore 70 mm
- Stroke 61 mm
- Total displacement 235 cc
- Compression ratio 10.5:1
- Fuel delivery to the crankcase: six blade reed-valve system connected to the crankcase
- Diaphragm carburetor WB37
- Reducer with Poly V belt available in 1:3.0
- Continuous operating temperature 180°C, max. temperature 220°C measured under spark plug
- Engine mounting: by 5 shock absorbing rubber mounts
- Propeller rotation: counterclockwise
- Maximum RPM 8000 RPM
- Spark plug NGK BR10ES
- Fuel mixture 3% with synthetic oil, suggested brands: Malossi 7.1 – Shell Racing M – Wladoil K 2T – Elf 2 T moto
STRUCTURAL FEATURES
- Hand starter
- Crankcases molten in G-Al Si 9 UNI 3051 alloy subsequently treated and anodized against sea salt
- Six port distribution system, and exhaust with booster
- Cylinder in alloy with Nikasil coating
- Piston with 2 piston rings
- Head in alloy with high percentage of silicon and hemispheric combustion chamber, with squish
- Thanks to the collaboration with Simonini flying, we apply the same thermical group
- Drive shaft in 18 Ni Cr Mo5 with 5 thermic treatments on every component
- Connecting rod in copper plated steel 18 Ni Cr Mo 5 joined to the drive shaft through very precise high speed silver-plated roller bearings
- Roller bearings fit for high speed class C3
- Seal ring in Viton with very high resistance and long duration
- Engine weight: Black Bull hand start kg 12,55
- + kg 3,80 for the exhaust
Engine developed for competitions, bi-place PPG, and trikes.
BLACK BULL is studied and projected in order to satisfy all pilots need expecially in terms of light weight, power, and maximum reliability.
TECHNICAL FEATURES
- Single cylinder air cooled
- Two stroke
- Bore 70 mm
- Stroke 61 mm
- Total displacement 235 cc
- Compression ratio 10.5:1
- Fuel delivery to the crankcase: six blade reed-valve system connected to the crankcase
- Diaphragm carburetor WB37
- Reducer with Poly V belt available in 1:3.0
- Continuous operating temperature 180°C, max. temperature 220°C measured under spark plug
- Engine mounting: by 5 shock absorbing rubber mounts
- Propeller rotation: counterclockwise
- Maximum RPM 8000 RPM
- Spark plug NGK BR10ES
- Fuel mixture 3% with synthetic oil, suggested brands: Malossi 7.1 – Shell Racing M – Wladoil K 2T – Elf 2 T moto
STRUCTURAL FEATURES
- Electric starter
- Crankcases molten in G-Al Si 9 UNI 3051 alloy subsequently treated and anodized against sea salt
- Six port distribution system, and exhaust with booster
- Cylinder in alloy with Nikasil coating
- Piston with 2 piston rings
- Head in alloy with high percentage of silicon and hemispheric combustion chamber, with squish
- Thanks to the collaboration with Simonini flying, we apply the same thermical group
- Drive shaft in 18 Ni Cr Mo5 with 5 thermic treatments on every component
- Connecting rod in copper plated steel 18 Ni Cr Mo 5 joined to the drive shaft through very precise high speed silver-plated roller bearings
- Roller bearings fit for high speed class C3
- Seal ring in Viton with very high resistance and long duration
- Engine weight: Black Bull electric start Kg 13,40
- + kg 3,80 for the exhaust