Vortech 1997-2004 C5 Corvette User Manual
Page 17
P/N: 4GR020-010 v1.7, 2009-11-25
©2009 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
5
Fig. 5-b
Fig. 5-c
Fig. 5-a
A. Attach the supplied small metal tab onto the
bottom of the engine coolant surge tank using
the supplied M6 bolt, nut and washers as
shown in Fig. 5-a.
B. Install the M6 x 50 mm bolt (the bolt is to be
installed from the bottom of the fender) and
.85" long spacer in the rear hole on the inner
fender.
C. Install the M6 x 45 mm bolt (the bolt is to be
installed from the bottom of the fender) and
.7" long spacer in the front hole on the inner
fender.
D. Use the remaining factory nuts to secure the
surge tank at all three of its original mounting
locations. (See Fig. 5-b.)
E.
The 3/4" hose connecting the surge tank to
the thermostat housing (on the engine’s water
pump) must be extended to provide clear-
ance for the Vortech Charge Air Cooler
(CAC). Remove the hose that connects the
coolant reservoir to the thermostat housing
and cut off the last bend on the water pump
side. Connect the cut end of the remaining
U-shaped hose to the surge tank and insert
the supplied 3/4" brass hose mender in the
open end. Using the supplied 90° hose, con-
nect the short end to the water pump. Cut the
long end so that it mates to the hose mender
and allows the hose to be tucked next to the
frame allowing room for the CAC. (See Fig.
5-c for finished modifications.) Secure the
hose ends with the two nylon ratchet clamps
provided.
F.
The hose coming out of the water pump and
going towards the firewall must be routed on
top of the A/C line. Disconnect the end
attached to the water pump. Route it on top
of the 3/8" aluminum A/C line and re-attach.
G. The A/C line must be bent up to clear the
hoses coming out of the CAC and then down
and towards the passenger side to clear the
alternator.
5. SURGE TANK RELOCATION
The factory surge tank will be spaced up about 3/4"
in order to clear the new alternator mounting location
cap on some vehicles - this may cause hood mis-
alignment. If hood alignment is unacceptable, the
surge tank may have to be lowered and clearance to
the alternator re-checked.