constructed enclosure or speaker
placement that may manipulate the SPL
sensor may be placed forward of the "B"
pillar and will be considered reason to
reclassify the vehicle to the Port Wars
or Super Port Wars divisions or
disqualification. This decision will be
at the discretion of the head judge.
Factory or factory replacement front
seats must be installed in the vehicle
in factory locations. Must have the
front bench or both front seats. No
woofers larger than 8" inches may be
forward of the "B" pillars.
physical size of each battery is limited
to 800 cubic inches (13110 cubic cm) or
less. (Height x Length x Width.
Excluding the battery terminals.) The
physical shape of the battery is
irrelevant. A 12 volt battery is defined
as a battery that has a nominal terminal
voltage of 12-Volts, consists of 6
internal series-connected cells, and is
lead/acid or gel-type. A 16 volt battery
is defined as a battery that has a
nominal terminal voltage of 16-Volts,
consists of 8 internal series-connected
cells, and is lead/acid or gel-type. A
battery shall have no more than two
“unique” battery terminals connected to
the system, one being positive and the
other being negative. Batteries with
more than two posts connected to the
vehicle or system will be counted as
multiple batteries. Batteries that
exceed these 800 cubic inches or exceed
allowed number of cells will be
considered multiple batteries.
(Example: 801-1600 cubic inches is tow
batteries. 12 volt battery with 7 to 12
cells would be two batteries, and so
These limitations apply
to all classes with defined battery
limits. Any class and/or division that
allows unlimited batteries will not be
bound by this definition
USACI World Record Attempt Rules
All rules of the class being
run will apply. Refer to the rules for the class or division
in which you are attempting a record for those individual
“LEGAL” records will be
recorded on the windshield 12” from the passenger “A”
pillar, 6” from the base of the windshield, and 1” off the
glass. A USACI microphone jig or tape measure may be used to
determine this location. The microphone will adhere to the
windshield using the factory suction cups provided. Vehicle
must be closed and sealed. Competitor may be in the vehicle
but must sit on the side opposite of the microphone and must
wear hearing protection at all times. Competitor refers to
registered owner or other persons as designated by
registered owner. Podiums will be allowed in all classes.
“OUTLAW” records may be
recorded anywhere forward of the “B” pillar. The microphone
must be secured in a USACI certified globe and be placed
where it can be observed by the world record official during
the entire run. Note: Port Wars and Super Port Wars will use
microphone placement as defined in their class rules.
Doors may be open or
closed but may not be opened and then closed during the run.
Competitor may be in
the vehicle but must sit on the side opposite of the
microphone and must wear hearing protection at all times.
Competitor refers to registered owner or other persons as
designated by owner. Podiums will be allowed in all classes.
In Street Beat and Outlaw SPL classes the
vehicle may be started 30 seconds prior to the record run.
Idle must be set no more than 1200rpm. The vehicle can run
until the reading is completed and then must be
shut off. If a record is achieved on the first run then the
engine must remain off and the vehicle may not be worked on
or modified for a period of up to 5 minutes. You may elect
to do the second run earlier but no later than 5 minutes
after the conclusion of the first run. At this point the
vehicle engine may be re started following previous
guidelines until completion of the second run. If the world
record attempt is successful then the vehicle engine will be
turned off and the vehicle opened to the judge for final
inspection prior to record being recognized.
In all Legal (Dash) classes the vehicle may not be running. The record
reading will be taken with the engine off over a 30 second
period. If the first attempt is successful at breaking the
record then the vehicle will be left unchanged and without
any work or modifications for up to five minutes. The second
run may be attempted in less than five minutes but may not
exceed five minutes. Once the second run is complete and the
record has been surpassed by both runs the vehicle will be
opened for inspection by the judge. Once the vehicle has
been inspected and verified for the class a record may be
After a record has been
achieved the judge will inspect the vehicle. The engine
compartment, interior compartment, trunk or hatch
compartment, and undercarriage of the vehicle will be
inspected to make sure all the requirements of the class in
which the record attempt is being done are fulfilled and
that there are no modifications that disqualify the run.
Only after this verification may a World Record be
All vehicles must make two
runs and both runs must exceed the prior record in order for
a new record to be recognized. Of these two runs only the
LOWEST reading of the two shall be recognized as the new
World Records may only be
attempted at WORLD RECORD events. IF World Record
attempts are allowed the event schedule will denote that
with the “WR” in the events category.
All World Record event fees must be paid prior to
event and all World Records recorded at the event must be
submitted in writing along with the competitors name and
membership ID number (membership must be current), and
individual world record fee’s
to the USACI office within 72 hours of event
completion. Once World Records are verified they will be
posted on the
USACI web site and the competitor mailed and award plaque
with his/her name, class, new record, and date set.
Good luck to all our members
attempting World Records!