Vortech Engineering Automobile Accessories 4GD020-010 Manuel D’Utilisation

P/N: 4GD020-010
©2001 Vortech Engineering, LLC
All Rights Reserved.  Intl. Copr. Secured
26APR01 V1.2 

(4.3L V-6/S-10-(4GD))

A. Install the supplied discharge plenum using studs,

spacers, nuts and washers (see 

Fig. 8-b

).

B. Thread the three supplied studs into the factory throttle

body mounting holes (into the intake manifold). The
shortest of the three studs belongs at the rear of the
throttle body. Insert the four spacers into their proper
location (see 

Fig. 8-c

).

C. Slide the supplied O-ring around the top flange of the

throttle body. Use a light amount of oil on the O-ring to
allow easy installation of the discharge plenum. Carefully
align the discharge plenum to the installed throttle body
studs. Lower the plenum down onto the throttle body
being careful not to upset the O-ring fit. When contact
with the O-ring is felt, push down firmly on the plenum
until you feel it seat on the top of the throttle body (see

Fig. 8-d

).

D. Secure the plenum to the throttle body by attaching the

supplied washers and nuts to the previously installed
studs.

E. Remove the 1/2” brake booster vacuum line from the

intake manifold and cut approximately 2” off from the
end. Splice the supplied adapter TEE into the brake
booster line. Run the supplied piece of 1/4” vacuum
hose from this TEE to the 1/4”-5/32” reducer (see 

Fig.

8-a

).

F. Attach the supplied compressor bypass valve and 1” x

2.25” hose to the plenum using #16 clamps. Orient the
bypass valve as shown (see 

Fig. 8-e

).

G. Attach the discharge tube from the supercharger to the

plenum using the supplied silicone sleeves and clamps
(see 

Fig. 8-e

). Connect the 5/32” hose to the nipple

located on the bottom of the supercharger bypass valve
to the reducer previously installed into the brake booster
line.

8

Fig. 8-e

Fig.8-d

Fig. 8-a

Fig. 8-b

Fig.8-c