painted body color). Remove the bolt using a 10mm
socket and store the bracket. On the “flying but-
tress” closest to the firewall, bend the captive nut
tang downward to make room for the plastic elbow
section using a small screwdriver in the hole.
7.3 Bring the air flow meter with the air filter base
installed over to the engine bay. Tilting the assem-
bly at an angle, feed the air flow meter outlet into
the rubber reducer sleeve already in place on the
plastic elbow (install loose hose clamp first). The
air flow meter assembly fits into the space just
inside the shock tower, between the two “flying but-
tresses” of the shock tower. The extra hole and
boss in the air filter base will line up with the hori-
zontal hole you just removed the 6mm body col-
ored bolt from. Using the longer bolt provided (M6
x 30mm, Allen head), attach the air filter base/air
flow meter assembly to the car using this bolt (it
mounts horizontally, through the air filter base, the
flying buttress, and into the Mazda captive nut on
the flying buttress). Use thread-locking compound.
7.4 Make sure that there is no chaffing or rubbing
anywhere along the plastic elbow assembly, even
though it is a very tight fit. Gently reposition any
brake lines that are pressing against the elbow.
Make sure all joints and clamps are secure - a leak
in this area will keep your car from idling correctly.
However, never over tighten your clamps, they
may break somewhere down the road. Use the
small length of rubber hose (1/4” dia) that is slit
along its length to cover the brake line running just
above the elbow. This will prevent any contact at
this point, which may result in noise during opera-
tion.
7.5 Locate the 3/4” diameter idle air hose (5’
length) from your kit. Attach one end to the ‘large’
outside fitting on the plastic elbow downstream of
the airflow meter (just below the brake master
cylinder once the elbow is in place). Use a clamp
to secure the hose to the short 3/4” nipple. Run
the hose toward the front of the engine compart-
ment, and across the engine side of the radiator.
Using the tie wraps provided, attach the rubber
hose securely to the radiator fan shroud supports
near the fan motor(s). Attach the end of the hose
to the idle control (ICS) valve nipple that is aimed
toward the front of the vehicle. Make sure that the
hose is attached in a way that will not interfere with
either fan operation or with the engine belts. At a
point along the length of the hose behind the radia-
tor, cut it and install the check valve supplied.
Install the check valve with the flanged end toward
the plastic elbow using the small hose clamps. See
figure 7.6. The hose is supplied a bit longer than it
needs to be. Feel free to trim its length if you pre-
fer. Be careful not to pinch the hose at any point -
doing so will affect your idle stability. You want to
have it tie-off in a low position; the cross over tube
will fit above this hose, hiding it in the final installa-
tion. On some cars, there might be a slight kink in
the hose where it attaches to the plastic elbow nip-
ple. This is acceptable - orient the hose so it
remains open.
Supercharger Installation Instructions
999-156, 999-157, 999-158 & 999-159
-11-
Revised 06/08
Figure 7.5
