Boost controller options + solution to my low boost problem

[Robert Deis]

On Fri, 4 Oct 2002, Jim Green wrote:

> I've never played with the lower WG hose, but I have
> been wanting to try a system that only lets boost in
> when it gets to a specified level.  That way you don't
> get any wastegate cracking, and faster spool up.  I'm
> really curious to how much something like this will
> help spool up.

Helps the mitsu guys out a lot- very noticable improvement. They only have
a 1 port WGA, though. The boost control system is much simpler than the
I-5s.

Normal mode is a pressure regulator valve that prevents any pressure at
all from reaching the WGA until the desired boost level is reached.  When
it does, the regulator cracks and full manifold pressure goes to the
WGA, which immediately opens the WG. When boost drops, the regulator
closes. Pressure is vented via a very small hole in the line somewhere
between the WGA and the valve.

There are a number of sites with instructions on building such a thing
from HW store parts, and vendors produce them for $50 and up.

-
------------------------------------------------------------------------------
  Rob Deis                  "Let the people know beforehand what the law
  MiB3347                      is and what they are to expect."
  rdeis at io.com                              -- 18th Congress, Rec. 75