answers your questions about supercharging
I have a 427 big block with an 871 blower that
is producing 10 lbs. of boost. When I step on
the gas heavily, it is building too much crank
case pressure. It is blowing the dipstick out
and blowing oil everywhere, which caught on
fire last time. I installed e-vac's to help
this problem, but it was unsuccessful. What
do you suggest I do?
Without knowing the state of
your engine, I would have to say the engine
sounds as if it is in need of the ole re-ring
job. Be sure the bores are true and round and
install a good quality piston ring like a C&A
duramolly. This should take care of your troubles.
Due to the increased cylinder
pressure of a supercharged engine it is important
the piston rings are in good working order.
A leaky ring will cause undue crankcase pressure,
which can cause the troubles you are experiencing.
The excessive crankcase pressure will soon take
its toll on the engine seals and your toy will
start leaving a spot on the garage floor, tipping
you off to a needed overhaul.