| In addition to using our
all rubber 2-ring type positive valve stem
seals, the vacuum produced by Negative Pressure
Supercharging is so powerful the intake valves
MUST also use,
1) Our steel intake valve spring umbrellas,
and
2) Seal the gap between the intake valve stem
and collets with silicone
This prevents an excessive amount of oil
from being pulled into the cylinder past the
intake valve guides with Negative Pressure
Supercharging. |
