Vortech 1993-1997 5.7L LT1 F-Body User Manual

Page 18

P/N: 4GH020-010
©2003 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
05NOV01 v1.2

(4GH V1.2)

4.1 AIR PUMP MODIFICATION AND RELOCATION (1993 MODELS)

A. Unplug the wiring assembly, clamps and

hoses from the air pump.

B. Remove the unit from the mount by removing

the mounting nuts. Remove the pump mount
and spark plug wire hold-down from the
vehicle.

C. Remove the 90

rubber elbow from the

check valve and TEE on the driver's side
exhaust manifold. Rotate the TEE 180

Remove the hose that was previously
connected to the air pump and discard.

D. Cut a 45

bend out of the original 3/4" air

pump inlet hose and attach to the check-
valve and TEE. (See

Figure 4-a

.) Secure

with tie wraps.

E. Take the supplied piece of 5/8" x 35" hose

and remove 12". Attach the 23" piece to the
remaining branch on the air pump discharge
TEE.

Place the air pump relocation bracket near

the left side inner fender panel (former air
filter assembly location). Position the pump
bracket so that the pump discharge and inlet
tubes face the engine. Mark and drill holes
and mount the bracket using the #12 x 1"
sheet metal screws provided. (See

Figure

4-b

G. Using the three 1/4-20 x 1" bolts, nylock nuts

and washers, secure the air pump to the
relocation bracket.

H. Reroute the pump power cable up to its new

location and attach to the pump.

Attach the remaining end of the 5/8" x 23"

hose to the air pump discharge and secure
with a tie wrap.

Remove a straight 1-1/2" long section from

the original air pump inlet hose. Attach the
hose and the supplied 3/4" breather to the
air pump inlet.

TO AIR PUMP

DISCHARGE

ROTATE
TEE 180

HOSE REMOVED
FROM ORIGINAL
AIR PUMP INLET

5/8" x 23"
HOSE

TOP VIEW

FRONT

REMOVE
AND
DISCARD

Figure: 4-a

Figure: 4-b