Vortech 2005-2008 C6 Corvette - Manual (Page 12)

P/N: 4GS020-010
©2009 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
29MAY09 v3.1 05-08Corvette(4GSv3.1)
3
Fig. 2-c
A. To provide an oil drain for the supercharger, it
is necessary to make a hole in the oil pan.
On Z06 cars, drain the engine oil and remove
the dry sump oil hoses from the oil pan.
B. Locate and center punch the hole. (See Figs.
3-a, 3-b.)
C. Drill 1/8" pilot hole at center location. Access
to the oil drain location is restricted, so a low
profile or right angle drill may be necessary
as well as a longer drill bit.
D. Use the supplied 9/16" rotobroach to drill a
hole in the oil pan. Break through the pan
carefully so that cutout piece does not fall
into the oil pan.
E. Tap the hole with a 3/8"NPT tap to approxi-
mately 1/2" deep or until the fitting can be
started. Pack the flutes of the tap with heavy
grease to hold chips. Again, access is
restricted so inserting the tap in a socket and
then using a ratchet to rotate it is helpful.
F. Thoroughly clean the threaded area. Reach
inside the oil pan and retrieve any stray
3. OIL DRAIN LINE INSTALLATION (ENGINE OIL-FED KITS ONLY.
APPLICATIONS WITH A V3 SUPERCHARGER SKIP AHEAD TO STEP 5)
Fig. 3-a (Z06 Shown)
O. Install the supplied Ø1/4" x 1/2" long dowel
pin into the drilled hole with the chamfered
end pointed toward the front of the vehicle.
P. Verify that the dowel pin is recessed slightly
from the damper face.
Q. Install the supplied new damper retaining bolt
as follows (If there are two bolts supplied, use
the one that is the same length as the factory
bolt):
1. Lightly coat the threads of the new
retaining bolt with red threadlocker.
Install and torque to 37 Ft/lb.
2. Using a 1/2" breaker bar, tighten the
retaining bolt an additional 120° or
tighten with a torque wrench to 250 ft-
lbs.
R. Remove the flywheel tool, re-install the starter
and re-connect the wiring.
S. Re-attach the steering rack and ball joints
and re-install the wheels.
T. Re-install the ABS module mounting bracket
and anti-roll bar.
2. HARMONIC DAMPER DOWEL PIN INSTALLATION, cont’d.
S//C OIL DRAIN HOSE