a package and save $$
Best of all, everything needed to install
the “NEW SYSTEM” comes all in one
package, organized and ready to install.
system combines several parts kits and items from
M.A.D.’s ELECTRICAL parts catalog to provide the best
Expect to have strong ignition, bright
headlights, powerful electric radiator fans, and in
general a very strong system.
automotive electrical system parts are designed for
best performance and longest life when operating at
about 14volts. (Because
14.2 volts is required to fully charge a battery—And
so the voltage regulator for the alternator is pre-set
to maintain system voltage at about 14.2volts.)
a perfect world, we would have the full 14.2 volts
throughout our electrical system.
However, voltage drop in the wiring results with
less than the full amount of voltage being delivered to
all the parts.
the factory wiring systems used with popular cars and
trucks from the Muscle Car period, voltage drop is
severe with lights and other accessories switched ON.
It’s why the headlights were never bright on
these cars and trucks, and dash lights were also dim.
When voltage at the dash area is reduced,
ignition system performance will deteriorate.
that when voltage is reduced by about 10%, performance
will be reduced by about 30%.
In other words…
A little voltage drop caused by weak wiring will
result with a major performance loss!
RECOMMENDED PARTS LIST
the M.A.D. ELECTRICAL catalog)
($7.95) (Tech book, ELECTRICAL
WIRING “tech is made simple”
It teaches soldering techniques and special
wire splicing methods.
The book covers many topics that are
important to reliability of this system.
It also covers Fusible Link wires, basics and
fundamentals of electricity, and more.
Many photos are provided, and the topics are
covered without a lot of heavy reading.
($27.95) Alternator wiring kit
for the “THREE-WIRE” model 10SI and 12SI, DELCO
alternators are the most practical for upgrading
cars from the Muscle Car period.
The 12SI model is a second-generation, GM
DELCO, with a built-in voltage regulator. It has increased cooling capacity and out-put rating.
The 12SI is available with 94amp out-put
more about 10SI and 12SI alternators in the
ELECTRICAL TECH section.)
alternator wiring kit has instructions and parts to
properly wire the “VOLTAGE-SENSING” terminal from
the alternator to the firewall-mounted Terminal Block.
The regulator in the alternator will take voltage
reading from the Terminal Block, and then make
adjustments to alternator output as required.
The kit provides this wiring method to maintain
the terminal block at 14.2volts (with normal alternator
Alternator wiring kit will also maintain function of an
original ALT or GEN warning light at the dash.
A voltmeter can also be added, but the warning
light is a nice feature to maintain.
The warning light feature can warn of a belt
drive problem at the engine.
Watch the Water Temp gauge if the warning light
comes on—it’s possible that the water pump may not
($24.00 each, 2 QTY = $48.00)
Relay kits for the Headlight up-grade.
Two relay kits are required, one for the High
Beams and one for the Low Beams.
Two kits are needed with “TWO Headlight”
systems and also use two kits with “FOUR Headlight
additional relay kits as needed for other items.)
We suggest one for electric fuel pump, one for
air conditioning, and two for electric radiator fans.
The modern, well-equipped, custom car will
require a few relays. See more on RELAYS in our ELECTRICAL CATALOG.)
($4.99 each 2 QTY = $9.98)
It’s our Insulated Terminal
will serve as the main power distribution
“buss-bar” under the hood. We recommend installing the terminal block, which
will serve as the main power distribution hub, at
the driver’s side firewall area.
one of these handy terminal blocks may be added at the
driver’s side of the radiator core support.
This second terminal block will provide
convenient connection of the “main load wire” for
headlight and radiator fan relays.
And then install our 8gauge Red Tuff-Wire
connecting the terminal block at the firewall to the
terminal block at the core support.
Relays for the headlights and fans can also be
mounted at the driver’s side of the radiator core
Chevy from the Muscle car period the Terminal Block and
relays can be mounted at the area where the old voltage
’63 – ‘71 Chevy…
The horn relay buss-bar may also be used for power
distribution to the Relays (Although the #CN-1 Terminal
block provides more secure and reliable connections.)
At the base of the horn relay is a metal bar with
two machine screws.
This metal bar is insulated from the body of the
horn relay, and this metal bar served as a power
distribution buss-bar in the original Chevy system.
an addition to this NEW SYSTEM package, two more #CN-1
Terminal blocks may be added under the dash, at the
Connect one of these terminal blocks mounted
under the dash to the under-hood terminal block (via
8gauge or 10gauge, Red Tuff-Wire).
And connect the other of these terminal blocks
mounted under the dash to ignition-switched ON/OFF
12volt power source.
These two terminal blocks under the dash will be
very convenient for wiring accessories.
Modern radios will require ignition switched
ON/OFF 12volt power Plus “full-time, always-hot, 12
volt power source” for the clock and pre-set station
gauges will require an ignition switched ON/OFF 12volt
air conditioning will require a relay.
The relay will connect to an ignition switched
ON/OFF controlled source.
Plus the relay will connect to a “main
full-time, always-hot, 12 volt power source.” (The switch-controlled relay for the air conditioning will
deliver power from the full-time hot terminal block to
the air conditioning system.)
A relay wired with this method is also the best
for digital dash gauges.
And so the terminal blocks under the dash
are great little organizers where accessories may be
10-TWR, 10 gauge Tuff-Wire, Red
at $0.65 per
foot = $6.50)
the battery up front, this 10gauge will be used for the
“battery charging wire.”
Connect the 10 gauge from the Terminal block at
the firewall to the battery POSITIVE stud at the side of
M.A.D.’s START’M UP kit solenoid.
The entire ten feet may not be required, but we
recommend using at least seven feet for this “battery
This long-length of “battery charging wire”
can slow the charging rate, which is most gentle to
batteries and alternators.
long wire length is especially important when using
“sealed” batteries—as we will never have
opportunity to add water that will be lost with
fast-rate battery recharging.
It’s best explained at our web site www.madelectrical.com,
in the Electrical
the feature titled “Chevy
Main Electrical Power system...”
10gauge is not used with our Trunk Mounted battery
system—Then we use the 8gauge, Red Tuff-Wire, which is
supplied in our Part #TM-1 & TM-2 kits.
(See the M.A.D. catalog)
each, only one required)
It serves as “short circuit protection.
This fusible link would automatically disconnect
the entire electrical system from the battery in the
event of short-to-ground at any part of the main system
or alternator. (See
more on Fusible Link Wires in our ELECTRICAL CATALOG.)
each, only one required)
It’s a very good up-grade.
See more about the advantages of this remote
starter solenoid up-grade in our ELECTRICAL CATALOG. (A 16gauge Fusible link wire kit is included in the START’M
UP kit—but install it at the terminal block as shown
in the NEW SYSTEM diagram.)
of our #U810R, 8gauge
x #10 stud size ring terminals, at $0.50 each.
will sell the 8gauge ring terminals individually, rather
than our catalog listed 10 pkg. Qty.
(8gauge terminals are larger than industry
standard and therefore more costly.)
These terminals can be used with our 8gauge, Red,
8gauge from the Terminal Block at the firewall to either
the second Terminal Block or the original Horn Relay at
the core support.
8-TWR (8 feet length, 8gauge Tuff-Wire, Red, $1.39 per foot at
8ft. length = $11.12 cost)
# 10-NTPMB75 ($2.69)
“Push-Mount” nylon ties can be used to re-fasten
wire harness into the original holes in the sheet metal.
“Screw-Mount” nylon ties can be used to fasten wire
harness at the sheet metal—Where new wiring is routed.
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