Carl Nelson
CNPR/justbmws.com, La Jolla, California
This discussion should be split into two areas:
early 2002 and 1600/early
1800.
Early 2002
Tips: These cars have large intake ports that will
match the 8/72 2 bbl
intake manifold. This manifold is available used for
$100 to $150.
Preferences/Cost: Add a Weber 32/36 carb for $289
and a sport air cleaner for
$25.50. This all uses stock hardware and is an easy
upgrade.
Mileage: Up to the low 30s.
Modifications: The jet package that the carb is
delivered with is not good.
Switch to f7 emulsion tubes, and switch the air
correctors (between the
primary and secondary) -- this is 160 primary 170
secondary. Change the main
fuel jet to a 130. Leave the secondary fuel jet at
140. Use 55 or 60 main and
secondary transition jets. This works great for most
near stock cars. You can
use the late 2bbl air cleaner, modify the bottom of
the air filter and fit an
adaptor, and it looks stock. This combination works
great and delivers great
flexibility. This combination also would be an
upgrade for the late 72 and on
2bbl Solex. Just bolt it on.
Greater performance would be had with a 38/38 DGAS
Weber. All installation is
the same. This is a simultaneous 2bbl. All or
nothing type (on off). Jetting
is as it comes. These are a bit more: $349. This
carb works best with higher
compression pistons and a performance cam.
1600/early 1800 (small port intake)
Tips: There was no 2bbl intake delivered to the
United States. There is a
Euro version, but I have not had good luck buying
them. There was a Cannon
manifold cast that fit well, but it was big for the
small port and small for
the big port.
Preference: The 32/36 Weber is definitely the way to
go on this one. Jetting
is as for the 2002.
Modifications: We do not suggest sidedrafts for the
street. There are several
types, and they all work well on the track. The
torque is better with the
down draught carb. We set these up for our race cars
all the time; they work
well at specific RPM ranges.
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