Lingenfelter LTCC - Manual (Page 7)

Installation Procedures
There are several ways you can go about installing this kit. We recommend taking a
couple of stabs at it. Don’t do any one thing that will get you in over your head,
especially if you need the car during this process.
The following is a recommended installation procedure:
1. Install the coil packs. On the Corvette or F-Body cars, the coils can easily be
mounted to the valve covers with home made stand-offs. It is easy enough to do
both sides in one evening. See photo #1, for an example.
2. Installing the module and harness:
a. It is important that the LTCC Module is kept away from heat and
vibration – both will damage the unit. For any vehicle, forward of the
engine is best. On the Corvette, the left headlight bucket is the best area.
Mount the unit LOW. VERY LOW, to provide clearance. See photo’s #2 &
3 for an example.
b. Install the LTCC Harness. Don’t do any cutting yet! Once you cut, you
are committed. But you can so very easily fit the harness and get it
dressed properly under the hood.
3. Cut and connect. Save this for last, unless you don’t need your car.
a. On the right (passengers) side of the intake manifold, under the fuel rail
cover, is the diagnostic port for the OptiSpark. This is where the pigtail
from the LTCC harness will intercept the data path. The connector is
secured to the side of the intake with a 9/32” screw. When installing, be
sure to securely retain this pigtail to the intake manifold. If it
disconnects, the engine will quit. Check to make sure that the factory
connector has no corrosion or defective connections. If you are
installing this on a 1992 Corvette, please go to Page 6 for specific
instructions.
b. It may be a good idea to spray some dielectric grease into these
connectors while you are in there.
It is essential that good grounds are present.
Tip: A good grounding point is a mounting bolt on the head for the factory spark plug
wire looms. The grounding wires will reach them with no problem. Another great
location is on the intake manifold itself. The standoffs that support the fuel rail cover
are screwed into the manifold. These standoffs are an excellent ground spot.
Additionally, it is far away from the heat of the exhaust headers, and is much easier to
reach than the sparkplug wire loom mounting bolts.
Note: The LTCCs current draw is 16-amps; the existing fuse for the ignition is 10-amps,
it must be upgraded to 20-amps before starting the car for the first time. If a problem
occurs, move up in 5-amp increments.