Jerry Boone's Car
"I think my car was
the third one produced. It was raced as a Formula Continental by Terry Annis (sp?), and
went to the Runoffs where I think it did fairly well. After its life as an
FC, it was owned by Mike McDaniels, who raced it in the Pacific Northwest
as a sports racer in events with the International Conference of Sports
Car Clubs (ICSCC). It was powered by a Ford Twin Cam engine (I think a BDA)
mated to a Hewland transmission.
Mike sold it to his crew chief, who did nothing with
it for a few years. He then trimmed about 16 inches off the rear to
shorten the wheelbase to about 84 inches (that's from memory) to fit the
DSR bodywork. He never finished the car.
I bought my car almost three years ago, and sold my LeGrand
25 to finance its conversion to DSR. It took me about a year to do the
work. In the last two years, I've turned about
20 laps in it...done all sorts of R&D to solve overheating problems (there
is a NACA duct in the front now...not seen in these photos...which force feeds a
side mounted radiator). I also swapped the tired 1000R for the Kawasaki ZX11 (it
hasn't been sleeved down because in ICSCC there is a class for that size
engine).
Cooling used to be a problem. I now duct air
directly from the high pressure area in the nose, and force feed it into
the radiator. The last time I had it out, on about a 90 degree day in
Oregon, it ran cool enough that you could see the temp dial move as the
thermostat opened and closed. The tube you see connects with a matching
one that attaches to the underside of the nose piece. There is a NACA duct
there (it was added after the outside photos were taken). The fan is there
for cooling on the cool down laps or if it has to sit in the pits. I could probably do without it, but I figured it was cheap and fairly
lightweight insurance.
Our noise rules are 103 dB at 50 feet. I'm not sure what other areas have
to meet, but at Portland the exhaust noise has not been a problem. When I
had the exhaust system built, I had it cross over the rear of the car just
in case I needed to put an additional muffler on. So far that hasn't been
necessary.
The header primaries are 1.5" diameter, and
total 30" from the flange face to the merge point of the collector.
The collector ends in a 2" diameter pipe. It is 50" from the
point where the 2" pipe merges with the four primaries, to the back of
the Supertrapp. We stepped up the secondary pipe at the end, beginning
with the 2" pipe, going to about two inches of 2.25" pipe, and
ending with a 2.5" diameter Supertrapp. In other words, the system is
80" long, with 30" of that being 1.5" primary pipes, and
the rest being 2" secondary."
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