Peugeot 106 Series 1 8 Valve - competition Engine Build - the "PPP-106 "
Full Car
Engine Build Specifications

The PPP106- Has taken much thought & Design work, include pages of calculations, hours of simulation & testing. The , initial design intent was to produce an over-square high & free-revving engine. After lengthy discussions, (most of which took place down the pub... hmmmm) The final decision was taken to develop a 76mm Bore & 77mm Stroke system. Combining the TU2J2 1296cc Engine & The TU3 1360cc Engine. - Achieving a total swept volume of 1397cc

Full Standard Engine
The Bottom End:

Pistons: Wossner 76mm forged slipper pistons.
Lightened and balanced crank and flywheel ( crank > 1.145kg lighter, flywheel 400g lighter) The balancing of the system was quite complicated due to the radical modifications of the Crankshaft. Each individual component was first balanced in isolation, then in as a whole including the group "N" Clutch Cover.
The Crankshaft has been highly polished to minimise "oil-cling" during running (thus reducing moment of inertia).
Lightened and balanced Forged Wossner 76mm slipper pistons and lightened & stress relieved con-rods.   

The ebd "Stage 4" Head
 EBD Fully gasflowed head - This is what we would refer to as a Stage 4 head, (which roughly translates as we stopped short of the platinium plating! - just!) The list of head work includes but not limited to:
  • Modified valve guides (to suit opened out ports)
  • Reprofiled Combustion chamber
  • Chamber Matched to Pistons
  • Head Skimmed - In combinatino with above modifications to attain 11.5:1 Compression ratio
  • Bronze Cam Thrust Plate
  • Inlet Ports have been "re-pitched" to even the inlet tract length between cylinders & open the flowpath up
  • Inlet Ports matched to custom designed inlet manifold to suit R6 Throtle Bodies
  • Valve seats re-cut.
  • All modificiations are designed around the production of a very High Volumetric Effieciency Head.
Other components:

Head matched with High performance CATCams special profile,
New Spring Retainers,
Uprated Valve Springs - (single)
One Piece EN 214N Austenitic Stainless Steel valves, - Wasted away as part of Head modifcations.
Overall the system uses 8 Injectors, 4 in the original positions, and 4 upstream in the form of a Yamaha R6 throttle body conversion using EBD custom inlet manifold,
Raceland Exhaust Manifold - modified so it actually fits the head!
Exhaust Manifold has been fitted with custom designed Insulation Jacket using 12mm Thick fibreglass wadding. The reason for this two fold, it is designed to reduce under-bonnet temperatures, thus maintaining a cool inlet Charge. It also protects the carbon fibre bonnet from the elevated temperatures produced from the application of the PPP-106.

Engine Management: controlled by Emerald M3DK - Mapped using 8 injectors &
Button control for stalk controls (removing all stalks)
OMP 129AE Roll Cage
Carbon fibre front splitter
Carbon fibre rear diffuser
Varley Red Top battery
Coil over conversion.