Vortech 1992-1996 5.7L LT1 Corvette User Manual

Page 26

18. VACUUM AND BREATHER LINES

A. Remove the fuel regulator vacuum connection from the

manifold. Place the 1-1/2" length of 5/32" tubing and a 5/32"
vacuum tee on the manifold vacuum spout. Connect the tee
to the original fuel regulator line and the 32" vacuum line to the
bypass valve.

B. Connect the 36" FMU vacuum line from the FMU to the

bypass vacuum line by using a 5/32" tee to splice the lines
together.

C. Remove the breather line that connects the throttle body to

the valve cover. Place a 1/2" vacuum cap on the nipple at the
throttle body. Take the plastic 90

breather line and cut as

shown in the graphic at right.

D. Install the supplied 5/8" breather line from the fitting on the air

filter tube to the 90

valve cover breather.

E. On 1994-1995 models, remove the 3/4" air pump inlet hose

and section out a straight 4" piece. Install the supplied
breather in one hose end and install the other end onto the
pump inlet.

TO
REGULATOR

TO MSD

THROTTLE
BODY

BYPASS
VALVE

SUPERCHARGER

INTAKE

VALVE COVER

FMU

POWER
STEERING
RESERVOIR

5/8" VALVE COVER
BREATHER LINE

5/32" VACUUM LINE

AIR FILTER

NOTE: On some 1994/1995 models there is a 5/32"
vacuum line running from the spark distributor
module to the throttle body air inlet hose. Reroute
the end originally connected to the air inlet hose to
the new inlet duct located in between the MAF and
the supercharger.