Swiftune DC5 Crankshaft, Con-Rod and Piston Set
Swiftune has developed a radical new crankshaft, connecting rod and piston design to eliminate the A series’ power sapping vibration at high revs caused by off-set con-rods and lack of crankshaft counterbalance.
Starting with a clean sheet of paper we have designed the new DC5 crankshaft with five main bearings, instead of three, therefore creating two “false” journals which enables the counterbalance to be doubled - much like a modern crankshaft! Just as important the new design incorporates straight, non off-set Con-Rods – a first for an A Series engine. They save weight and reduce the longitudinal side thrust on the piston. The DC5 con-rods are ¼ in longer than standard with the benefit that the reduced angularity at the small end reduces lateral friction losses on the piston under power.
A modern short-height slipper piston has been developed to complement the new design. The high-tech piston is CNC machined from solid billet for higher rigidity and coated in molyslip for the ultimate in low friction performance, pistons also features an 18mm pin. The slipper piston is a key part of the DC5 design, saving 25 per cent of the weight over a conventional forged piston and Con-Rod. At 8000rpm the lighter piston massively reduces the bottom-end loads.
The DC5 Kit will increase top-end RPM and hold onto valuable power for longer. Driving the DC5 is like no other A-Series as it feels incredibly smooth.
DC5 Set Includes -
- EN40B Billet Crankshaft
- 6" H-Beam Steel Con-Rod Set
- Billet Piston Set
- Big-End and Main Bearings
- Crankshaft Thrust Washers
Avaliable in 1293, 1380 and 1460cc sizes to suite 1300/A+ engines. If you require alternatives or have any questions please contact us.