Example of tuning: PV / S40
Recipe:
A 531 header (STAGE 5) with 48/40 valves, special camshaft lifts 14.3, longer & larger valve depressors.
Engine block: New from factory, B230 turbo 1992.
Bore: 97.2mm.
Stroke: 89.85mm.
Volume: 2665cc.
Rods: Steel, modified length.
Crankshaft: Steel. Balanced seperately and pinned with the flywheel.
Flywheel: Lightened about 5kg.
Transmission: Twin plate clutch with sinter-plates.
Ignition and injection: Hestec. Doublespark without distributor. 
The machine pulls evenly strong from 0 rpm up to well over 7000 rpm! The faster the gear change the better performance.
Sample values:
At 3900 rpm the torque is 305NM/170Hp.
At 5100 rpm the torque has increased to334NM/243Hp.
A steady torque is given all through to maxium rev.
For example at 6000 rpm 328NM/281Hp, 6600 rpm 313NM/294Hp
Max power at 6840 rpm was 302Hp/303NM!!
This measurement was performed without having drivven the engine through it's starting mileage so the actual power is even higher!
Check out Kenneth's previous engine...
More information about tuning in our catalogue.