Vortech 1991-1994 Ford 4.0L Ranger/Explorer - Manual (Page 14)

P/N: 4FD020-010
©2001 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
31JUL01 V1.1
(Explorer/Ranger(4FD V1.1))
8mm FLAT HEAD
1/4-20 BOLT
REAR MOUNT
SNAP-ON
NUT PLATE
6mm FLAT HEAD
SNAP-ON
NUT PLATE
FRONT MOUNT
9. AIR INLET DUCT
A. Rotate the vacuum tree located on the rear left
side of the intake manifold approximately 180
°
to gain clearance for the intake/discharge ple-
num. (See
Fig. 9-c.)
B. On automatic transmission equipped applica-
tions, the transmission vacuum line must be
removed from the manifold, rerouted and formed
to run along the firewall for plenum clearance.
The rubber portion of the transmission vacuum
line must be cut and the Vortech supplied
restrictor and check valve assembly spliced into
the two cut ends. (See
Fig. 9-a.)
C. Remove the plastic throttle cable retaining clip
from the top of the intake manifold.
D. Attach the two 1/4-20 nut plates to each of the
supplied steel plenum mounting tabs. Mount the
plenum mounting tab assemblies to the upper
intake manifold. The thin, non-slotted tab is
mounted to the upper manifold boss that is
located near the idle-air motor using the sup-
plied 6mm flat head screw. At the top rear of the
upper intake manifold, install the thick, slotted
tab with the 8mm flat head screw. (See
Fig. 9-b.)
E. Position the plenum bosses over the adjustable
tabs and secure with 1/4-20 bolts.
F. Mount the plastic intake duct to the super-
charger inlet with the 3-1/2" T-bolt clamp, leav-
ing the clamp loose.
G. Secure intake tube 'B' to the plenum and plastic
intake duct using 3" x 2" and 3" x 3" blue silicone
sleeves and #48 clamps as shown in
Fig. 10-a
on the page 10.
H. Position intake tube 'A', 3" x 2" silicone sleeve
and #48 clamps onto the plenum. Mount the 3"
90
°
rubber elbow and #52 clamps into the mass
air flow housing and connect to the intake tube.
Connect the crankcase breather hose to the
barb on intake tube 'A'.
1/4" TEE
ONE WAY
VALVE
TO TRANSMISSION
MODULATOR
TO VACUUM
TREE
RESTRICTOR
TRANSMISSION
VACUUM LINE
FLOW
8
Fig. 9-c
Fig. 9-b
Fig. 9-a