November '05 NEWS
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- 1am - G'day. Another long overdue update! Lots of changes, lots
new things, and some more complexity thrown into the mix.
quite a few months fooling around with the aforementioned throttle
body, we've decided that from a workability perspective to return to
the good old 1 way valve.
also totally changed the intake system, in that now we are running
the boost semi-compounded. The piping runs from the outlet of the
big compressor, to the inlet of the small compressor, then out of
that to the intercooler... However, we didn't want the small
compressor to be a restriction to high end boost, so we've modified
that 'standard' fully compounded boost system further to allow flow
to bypass the small compressor totally, and flow direct from the
large into the intercooler (Through the 1 way valve).
happy to say that the fabrication of the system therefore is largely
complete, with one more small addition being a 2nd one way valve
which will allow the small compressor to draw initial airflow
directly from the air filter rather than through the big compressor,
to promote faster spool off the line with more efficiency (not
having to suck that air through the big turbo and all that extra
this complete (minus that 2nd valve), I'm very happy to announce
that we are now getting a proper, working, and comparatively much
smoother sequential changeover! Bearing in mind that we are only
using the spring pressure on a single actuator in order to achieve
the changeover right now, and no other control, we are really
looking forward to implementing the control system, which at the
moment looks at being fairly similar to the standard RPM switched
system, with some nice 'on the fly' programming ability, and a boost
check to make sure it doesn't try to changeover if you're pushing it
to high RPMs with no boost.
now... we have an initial small turbo spool to about 0.5 bar, then
it drops to 0.3-0.4 bar as the large turbo comes online, and the
overall boost then raises to 0.8-0.9 bar, which on the current setup
is roughly around 350-390RWHP. Once the control systems are in
place, we expect to be able to push the small turbo to 0.9-1 bar off
the mark, and have the big turbo spool up much faster to a higher
pressure and way more horsepower, with a tune.
in all, the system is really starting to come together, we're all
very excited at the prospect that the entire project is finally
starting to come to fruition, and you can definitely expect some
more regular posting from me as things move along much quicker than
over the last 12 months!
some new photos for you all, taken in November 05, but unfortunately
the engine bay shots aren't "current" as we made more
changes yesterday and haven't photographed them yet... Will update
with more current photos shortly.
Click here to view the MESMERIZE Webcam, and
watch us while we work on the big upgrade!