
Now available, known as the EVO4, the latest generation of World Champion 12 size IC Sirio engine has been launched! The Sirio 12 Evo4 features a 3 ports ABC Efra legal liner assy, a special STI type black crankshaft, also complying to the 2007/2008 Efra rules. Using some new material on the carburettor main needle, a new conrod, a new lightweight efficient cooling head, the Evo4 will offer the highest performance from a 1:10 IC 200mm Touring car, when coupled with the dedicated tuned-pipe line and the Kyosho 2D clutch set. Some new Ceramic rear bearings are available as option.

| Technical Data |
| S12 T3 Evo 4 |
| DISPLACEMENT: |
2.1CC |
|
STROKE:
|
13.70MM |
| BORE: |
14.00MM |
| PORTS: |
3 |
| PISTONS: |
CNC |
| SLEEVE: |
ABC |
| EXHAUST: |
REAR |
| WEIGHT: |
231g |
| CRANKSHAFT: |
12.00MM SG TYPE |
| CARBY TYPE: |
PLASTIC SLIDE DOUBLE ADJ |
| PLUG TYPE: |
TURBO |