Definitions

Balance – Using a gram balance mass each component to be balanced against another identical part to ensure the same mass.  Example: Banshee pistons, left cylinder piston mass of 178.9gr, right cylinder piston mass of 179.4.  The piston with additional mass is machined in balance points on the piston to reduce its mass to equal that of the lighter piston.  This allows the mass of both pistons to act in synergy and not add undue vibration to the reciprocating mass of the crank and rods.  A balanced engine will turn more RPMs faster and smoother than an unbalanced engine.

Blueprint – To set the engine’s basic tolerances to their minimum specific range.  To ensure that the casted components of the cylinders, cases and reed cages are true to that of the original intent of the manufacturer to the best of one’s knowledge of the practice of casting.

Cleanup – Standard carbide cut finish.  Resulting in use of the cutter removing casting flash and or the reshaping and re-contouring of critical flow paths.

Hack – A person who has the tools but little knowledge of porting, as defined below, or the rudimentary understanding of the fundamentals of two-stroke performance enhancement.  (A guy that puts his name or initials in the side of your cylinder.  Anyone who does that without the permission of the client is disrespectful to their client’s property.  WP will never carve our name or company initials in the outside of your engine.)

Polish (Intake and Fuel paths) – From 80-180 sand paper grit finish.  The fuel side of the engine, i.e., intake, crank case, transfer tunnels and transfer ports on Phase III and above engines receive full polish treatment on all the surfaces.

Polish (Exhaust) – A mirror finish is applied to the exhaust port.  There is much debate as to the functional benefit in terms of HP gains by performing a polish to the exhaust.  WP performs this operation on all Phase I engines and above mostly to remain synergistic in terms of overall performance and to minimize or eliminate the build up of carbon in the exhaust port.

Porting – The process of altering the size, shape, angles, contours, flow paths, timing, duration and speed of the engines firm components to alter the effect of gases passing through the engine to thereby increase or change the power output to a specific pre-determined level of performance or goal.

TDR – Tony Dukas Racing.  Provider of quality reed petals in fiberglass fiber and carbon fiber.

True – To align the crank fly weights of the crank to factory minimum specs or less.

Weld – To tack weld the crank pins on the center section, twins, and main bearing pins to eliminate the possibility the crank will become un-true while under load or separate during the same conditions.

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