Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 12, 1974.
As of Wednesday, July 17th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1974 and older model-year vehicles. Excluding vehicles originally equipped with an electronic ignition system whether it is a breakerless, capacitive discharge, or transistorized type. And Also excluding all 1966 - 1970 model-year vehicles equipped with a Dana or Carter Nox retorfit device using an electronic speed sensor.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-11-1
  • Executive Order 11-1 / D11-1
  • ARB # D-11-1
  • Executive Order No: D-11-1
  • C.A.R.B. No. D-11-1
  • Resolution D-11-1
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-11-1 PDF

D-11-1 Document:



                         State of California
                        AIR RESOURCES BOARD


                         EXECUTIVE ORDER D—11—1
             Relating to Exemptions under Section 27156
                         of the Vehicle Code   _


                         WESTERN CONTROLS INC.
                          "WESTERN CONTROLS"


Pursuant to the authority vested in the Air Resources Board by Section
27156 of the Vehicle Code; and

Pursuant to the authority vested in the undersigned by Section 39023 of
the Health and Safety Code;

IT IS ORDERED AND RESOLYED: That the installation of "Western Controls"
breakerless capacitive discharge ignition system manufactured by Western
Controls Inc., has been found to not reduce the effectiveness of required
motor vehicle poliution control devices and, therefore, is exempt from
the prohibitions of Section 27156 of the Vehicle Code for 1974 and older
model—year vehicles except the following:

1.   Vehicles originally equipped with an electronic ignition system whether
     it is a breakerless, capacitive discharge, or transistorized type.

2.   All 1966—1970 model—year vehicles equipped with a Dana or Carter NOx
     retrofit device using an electronic speed sensor.

The device consists of a sensor, d—c converter, storage capacitor and an
electronic switch.

This Executive Order is valid provided that installation instructions
for this device will not recommend tuning the vehicle to specifications
different than those listed by the vehicle manufacturer.

Changes made to the design or operating conditions of the device as
originally submitted to the Air Resources Board for evaluation that
adversely affect the performance of the vehicle‘s pollution control
devices shall invalidate this Executive Order.

Marketing of this device using an identification other than that shown
in this Executive Order or marketing of this device for an application
other than those listed in this Executive Order shall have prior approval
of the Air Resources Board.

This Executive Order does not constitute any opinion as to the effect
that the use of this device may have on any warranty either expressed or
implied by the vehicle manufacturer.


"Western Controls"     '               .                Executive Order D—11—1




THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF
ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY
ALLEGED BENEFITS OF THE "WESTERN CONTROLS" DEVICE.

No claim of any kind, such as "Approved by Air Resources Board" may be made
with respect to the action taken herein in any advertising or other oral
or written communication.

Section 17500 of the Business and Professions Code makes unlawful untrue
or misleading advertising and Section 17534 makes violation punishable as
a misdemeanor.

Sections 39130 and 39184 of the Health and Safety Code provide as follows:

       "39130. No person shall install, sell, offer for sale, or advertise,
       or, except in an application to the board for certification of a
       device, represent, any device as a motor vehicle poliution control
       device unless that device has been certified by the board. No
       person shall sell, offer for sale, advertise, or represent any motor
       vehicle pollution control device as a certified device which, in
       fact, is not a certified device. Any violation of this section is
       a misdemeanor."

       "39184.   (a) No person shall install, sell, offer for sale, or adver—
       tise, or, except in an application to the board for accreditation of a
       device, represent, any device as a motor vehicle pollution control
       device for use on any used motor vehicle unless that device has been
       accredited by the board. No person shall sell, offer for sale, adver—
       tise, or represent any motor vehicle pollution control device as an
       accredited device which, in fact, is not an accredited device.    Any
       violation of this subdivision is a misdemeanor."

Any apparent violation of the conditions of this Executive Order will be sub—
mitted to the Attorney General of California for such action as he deems
advisable.




Executed at Sacramento, California, this   /m    day of April, 1974.




                                    WILLIAM SIMMONS
                                    Executive Officer


                            State of California

                            AIR RESOURCES BOARD
                                  April 2, 1974

                                  Staff Report


                    Evaluation of Western Controls, Inc.
                       "Western Controls" Breakeriless
                  Capacitive Discharge Ignition System For
                 Exemption from the Prohibitions of Section
                     ~ 27156 of the Motor Vehicle Code




1.    —Introduction
       Western Controls, Inc., Phoenix, Arizona, has applied for exemption

       from the prohibitions of Section 27156 of the Motor Vehicle Code for

       the "Western Controls" breakerless capacitive discharge system.     Sec—

       tion 27156 prohibits the installation of any device which reduces the

       effectiveness of motor vehicle emission control systems.     The appli—

       cant intends to sell the device as an "after—market" part to replace

       the standard ignition system.


       The Air Resources Board has adopted criteria for the evaluation of

       "after—market" devices for compliance with Section 27156.    The basis

       for evaluation is defined in the "Air Resources Board Criteria for
       Determining Compliance with Section 27156 of the Motor Vehicle Code,

       dated February 17, 1971.     Western Controls, Inc., is the manufacturer

       of "Western Controls" device also known as "Thermotronic", distributed

       by Thermo King Corporation, Minneapolis, Minnesota.


II.    System Description

       For a general description of breakerless capacitive discharge systems,


"Western Controls"                     >                 April 2, 1974




     see Staff Report "Evaluation of Capacitive Discharge and Transistorized

     Ignition Systems for Compliance with the Requirements of Section 27156

     of the Motor Vehicle Code", dated February 14, 1973.


     The "Western Controls" device consists of two major components: A sensor

     and power unit (see schematic).
           ;A—nniiiANMNWeiee                                        1         To \L
          Stitch
           fitch ; 57                 5
                                                                             Distributor
         w_—                Trigger         Converter                    a
         wz                  Unit             Unit                       g

         Baptery               Cam                           toil



     The sensor {; a magnetic pulse generator whose pulses are generated by

     movement of the distributor cam in the magnetic field.     This signal

     is fed fnto the capacitive discharge circuit discharging the storage

     capacitor into the primary windings of the ignition coil.          The capaci—

     tive discharge circuit consists of a d—c converter, storage capacitor

     and an electronic switching circuit.   The system is capable of an

     output of 32 KV and 60 millijoules according to manufacturer.
              enX

III. Laboratory Test Data

    The 1972 Federal hot start exhaust emission test conducted by Scott

     Research Laboratories, Inc., Report #2092 01 01 73, show an average

    5.8% decrease in hydrocarbons, an average 10.5% decrease in carbon

    monoxide and an average 3.0% increase in oxides of nitrogen. The device

    unit used in this test was labeled "Thermotronic".      The following


    "Western Controls"               '                       .                       April 2, 1974

                                                                                     ;\L¢
                                                         .                  c
                                                                                pi,\/
                                                                                 o, 220
        vehicles were used:                                          Loget"
         (1) 1973 Chevrolet Pick—up, 350 CID;}AV Bb1. Carb., Auto. Trans(82901M),
                                                                 /                                          .
         (2) 1973 Ford Gran Torino, 351 CID,/2V Bbl. Carb. Auto. Trans (826GHL).


        The ARB performed a confirmatory test to investigate the effect of the

         "Western Controls" device on a vehicle electrical system.                                The following

        results were obtained:


         RPM                                    Baseline                              Device:
                              Centrifugal Spark Advance Angle in degrees measured from TDC.

         Idle 600                                    6                                      6
         1000                                        8                                      7.5
         1500       _                               14                                     16
.        2000                                     (19.5                                    20
         2500                               t       23.5                                   24
         3000                                       27.5                '                  29
                                         Spark Duration in microseconds.

         Idle                                      1300                                   300

         2000                                      1000                                   320»

                            {Required)   Secondary Voltage in KV.
         Idle           —                        8 ?;‘10                              7 i% 10

         2200                                    5 t% 7                               5 t% 8

                                         Secondary Voltage Rise Time in Microseconds.

         Idle                                       18                                    0.5


        "Western Controls"                                           April 2, 1974




              _RPM_                       Baseline                     Device
                                                Exhaust Emission

                                   Lhco        60                   LHel       600
               Idle               117 ppm      0.17%                100 ppm     0.17%


              The vehicle used for this test was a 1973 Ford Galaxie, 351 CID, 2 Bb1.

              Carb., Auto. Trans. (719 HGY).


        IV.   Staff Evaluation

              Based upon available data the device‘s main function can clearly be observed

              in shortening the secondary voltage time rise.       This shortening enables

              the output energy to reach its maximum value in a reasonably short time.

              The spark duration is also reduced significantly to make the spark much

.             hotter since the output energy is unchanged.      The spark duration, however,

              being reduced is still far above the minimum limit required by auto manu—

              facturers for combustion.     The device has no significant effect on the

              centrifugal spark advance curve.       Vehicles equipped with NOx emission

    *         control devices using a speed sensor such as the Dana or Carter device

              cannot be equipped with the "Western Controls" device.          The speed sensor
              switch will interfere with the timing of the "Western Controls" device

              and might cause excessive misfire.


        V.    Conclusions and Recommendations

              It is the staff opinion that Western Controls, Inc. "Western Controls"

              breakerless capacitive discharge ignition system will not adversely

              affect motor vehicle exhaust emissions when evaluated with respect to


        "Western Controls"                   .                  April 2, 1974




             the exhaust emissions obtained with a conventional ignition system of a

             "tuned" engine.   This device may also have a beneficial effect in the

             contfoi of exhaust emissions in that the device may maintain the "tuned"

             condition for a longer period of time.   Therefore, the "Western Controls"

             breakerless capacitive discharge ignition system should be exempt from

             the prohibitions of Section 27156 of the Motor Vehicle Code for 1974

             and older model—year vehicles except those equipped with Dana or Carter

             NOx emission control devices.




moven



Document Created: 2005-09-01 12:42:27
Document Modified: 2005-09-01 12:42:27

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