Robert Lilly wrote in part =
>Another benefit is that the exhaust =
will work
better because hotter gases
>travel faster and create a higher =
vacuum pull
on the intake and pull more
>fuel into the chamber and increases
power.
>Back pressure is also reduced and =
power is
increased because the engine does
>not have to use as much HP to =
force the
exhaust gases out.
>Intake temps are reduced and =
because "colder"
fuel makes more power, HP is
>again increased.
The hotter the exhaust gas is the =
more it
expands and that makes the exhaust system less effective =
some boats with V8s use a water =
cooled
exhaust that greatly increase power output
intake manifold temps are directly related to =
exhaust
temps as they go up the horse power goes down.
fresh air to the engine compartment and =
to the
air intake manifolds are a great way to keep the intake system cool =
I used
this to prevent power loss as the engine compartment warmed up after a =
couple of
laps in my formula vee http:=
//www.bostonengine.com/images/gallery/be-joeracer.JPG]
the Bergs offer ceramic coatings that coat both inside and outside =
of the
exhaust system this would prevent the pipe from absorbing heat. ceramics =
may
also be very good at giving off what heat it does absorb
B.
Bob
