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Project
Lite-Weight -- 1983 Mustang Coupe (Notchback) Log
#006 Spring, 2004 Finishing
Up
!
Exhaust Project
lite consists of the following MAC parts: 1 ¾ Long
tube headers 3”
Pro-chamber 3”
pro-dumps (mufflers w/turndowns) The
standard ball flange on the outlet or collector of the header has
been cut off and replaced with a true 3” ball. The headers as is
neck down to a 2 ½ ball socket causing a restriction in the flow of
the system.
Other
Articles in Series
On
race cars we do this to get the maximum efficiency out of the exhaust. We
have since found out that MAC produces a header with the correct ball, we
will try those next time! The MAC Pro-chamber is a proven power producer
and we opted to try them out for this project. Some slight grinding of the
exhaust hanger hooks was necessary due to our custom crossmember setup.
Ball
Flange
Exhaust
Ignition Support
Group Lite’s
ignition system consists of an MSD Digital 6 Plus box, which has built in
functions for nitrous retard as well as a 2-step feature for line-locs or
future transbrake setups, hint, hint! An MSD HVAC coil was chosen for this
application as it is recommended by MSD for the MSD Digital 6. The
distributor is an MSD 8582 billet unit that is typical standard fare for
the small block Ford. Beware, this distributor comes with a cast
distributor gear which must be replaced with a steel unit for hydraulic
roller motors. We will try different spring rates trackside or dynoside to
optimize ignition timing and curves. A set of MSD 8.8 ignition wires will
transmit spark to the Autolite #24 spark plugs. Note:
All of the ignition components have been securely fastened to the interior
of Lite on the floorpan. An MSD bulkhead connector brings the coilwire
through the firewall safely to prevent any shorts. Cooling
System Radiator/Fan
– The radiator is a Mike’s Mustangs brass HD 3-core unit with a 1995
Mustang 5.0 Electric cooling fan. This is a two speed fan where we will
only hook up to the low speed unit, as early cars (79-93) cannot handle
the amperage draw of the high speed switch. A standard auto parts store
water pump and a 160 deg. Thermostat are proven pieces on a drag only car. Coming
Up –
Getting
ready for the track. Details, details, and more details !! |
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