The main objective of this prototype, is to unite the pleasure and easiness of controling a lightweight superbike with a 4 cylinder 2-Stroke GP alike powerplant.
With this engine, we can compromise good bottom-mid power because of the big bore kit allied with the exhaust powervalves, and a high revy peak top-end reving till near 12 500 - 13 000 to assure some reliability of the internal components.

The engine tuning will seat on the following specifications:

Big bore kit 651cc, using original stroke 50 mm and Yamaha TZ 350 pistons 64mm.
New cylinders diagrams, reshaped ports and transfers, bigger areas and timings.
Modified cylinder heads for new compression ratio of ~14:1, using unleaded 100 RON gas.
True crankshaft for maximum precision and balance it with a tendency to the TDC, and 90º positioned.......
WISECO Hot Rods connecting-rods with long length.
4 Mikunis TMX 38mm carburetors without using any type of air filter.
4 VFORCE 3 125 cm3 carbon reeds packs.
Modified inlet manifold for new carburetors.
4 Hand-made exhaust systems, for 12 500 - 13 000 rpm in charge.
65% of engine square index.
Hand-made CDI with new ignition diagram map.
ELECTRIC: TZR 50 Flywheel, with 4 pickup's for 90º Ignition - SCREAMER EXPLOSION ORDER......

The power output predicted for this engine preparation is about 200 engine hp in a reliable Dyno.