Fixed Induction Timing - DISC VALVE

Valves have a fixed timing. This provides a good top end power but the engine's pickup is poorer from low engine speeds than a reed.

We use steel and carbon valves. They are cut from complete circles so we can set our own open and close angles. Carbon Valves can not be used direct against aluminum cases as the carbon destroys the metal and ceramic coatings to the cases have to be applied.

Variable Induction Timing - REED

Reed valves vary their timing depending on the engine's rpm. they give lower top end power than disc valve engines, but have a more consistent pick up. Timing can be varied by using different valve materials or different petal combinations. This effects the stiffness of the material and hence its harmonic response.

We modify our engines to take various makes of reeds and reed blocks, these include 4 and 6 petal blocks, carbon and fibre glass reed petals.