Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on February 28, 1974.
As of Monday, July 22nd, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1973-1974 Mercedes Benz, Mazda , Audi and Porsche vehicles, all General Motor Corporation vehicles equipped with an integrated coil and distributor, and those 1966-1970 vehicles equipped with incompatible Nox retrofit systems such as the Fana and Carter devices witch employ electronic speed sensors. The device consists of a d-c to d-c converter, capacitor, and silicon controlled rectifier electronic switch.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-20
  • Executive Order 20 / D20
  • ARB # D-20
  • Executive Order No: D-20
  • C.A.R.B. No. D-20
  • Resolution D-20
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-20 PDF

D-20 Document:



                             State of California
                             AIR RESOURCES BOARD

                           EXECUTIVE ORDER D—20
                 Relating to exemptions under Section 27156
                             of the Vehicle Code

                           TRI—STAR CORPORATION
                                "TICER 500"

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 RESOLVED:  That the installation of "Tiger 500" ignition
system manufactured by Tri—Star Corporation has been found to not reduce the
effectiveness of required motor vehicle pollution control devices and, there—
fore, is exempt from the prohibitions of Section 27156 of the Vehicle Code
for 1955—74 model—year vehicles except 1973—74 Mercedes Benz, Mazda, Audi and
Porsche vehicles, all General Motors Corporation vehicles equipped with an
integrated coil and distributor, and those 1966—70 model—year vehicles
equipped with incompatible NOx retrofit systems such as the Dana and Carter
devices which employ electronic speed sensors. The device consists of a d—c
to d—c converter, capacitor, and silicon controlled rectifier 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 cperating 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 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 "TIGER 500" 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.


Tri—Star Corporation
"TIGER 500"                                             Executive Order D—20




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

Section 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 pollution 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 policy or laws will be submitted to the Attorney
General of California for such action as he deems advisable.




Executed at Sacramento, California, this    gg      day of February, 1974.




                                  WILLIAM SIMMONS
                                  Executive Officer


                                                State of California

                                                AIR RESOURCES B0ARD

                                                   February 8, 1974

                                                    Staff Report


                              Evaluation of the Tri—Star Corporation
                                            "Tiger 500"
                                    Capacitive Discharge Ignition
                          Systems for Exemption to the Prohibitions
                          of Section 27156 of the Motor Vehicle Code



      Introduction

      The Tri—Star Corporation, Grand Junction, Colorado, has applied for

      exemption to the prohibitions of Section 27156 of the Motor Vehicle

      Code for the "Tiger 500" capacitive discharge ignition system.

      Section 27156 prohibits the installation of any device which reduces

      the effectiveness of motor vehicle emission control systems.                                                     The

      applicant intends to sell the device as an "add—on" part to the

      standard ignition system of 1974 and older model—year vehicles.


II.   System Description

      For a general description of capacitive discharge ignition systems,

      see staff report "Evaluation of Capacitive Discharge and Transis—

      torized Ignition Systems for Compliance with the Requirements of

      Section 27156 of the Motor Vehicle Code", dated February 14, 1973.


      The "Tiger 500" device consists of circuits for a d—c to d—c

      converter, storage capacitor and a sflicon controlled rectifier which

      serves as an electronic switch, and a trigger conditioner.




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    .            Tri—Star Corporation                                       February 8, 1974




                 III. Emission Testing

                       The applicant submitted an electrical schematic and described the

                       system operation in addition to supplying CVS test data on three

                       vehfc1es.   Based on the manufacturer‘s data and claims regarding no

                       significant ignition system deterioration, there were no adverse ef—

                       fects expected.    The emission data supplied was acquired at an altitude

                       of 5,000 feet and consequently confirmatory sea level tests were

                       conducted by the ARB laboratory.


                      The "Tiger 500" device was tested by the ARB laboratory on the following

     .               \vehicles:

                           1973 Chevrolet, 350 CID, 2 Bb1. Carb., EGR/AIR, Auto. Trans.

                           1973 Mercury, 302 CIO, 2 Bb1. Carb., EGR, Auto. Trans.

                           1973 Plymouth, 360 CID, 2 Bb1. Carb., EGR/AIR, Auto. Trans.


                      The idle air fuel mixture and ignition systems of both vehicles were

                      prechecked to insure proper engine operation.      For all tests, with

                      and without the device, the engine settings were adjusted to the

                      vehicle manufacturer‘s specifications.


                      The results of the ARB tests are shown below:




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‘ .   Tri~Star Corporation                                                          February 8, 1974




                                                                   Hot CVS —     grams/mile

                                                              HC         ~_CO           NOx

            1973 Plymouth — Baseline                         0.87         6.33          2.38
                            Device                           0.94         5.88          2. 38
                               % Change                      8.05        —7.11            0

            1973 Mercury     — Baseline                      2.45        14.09         \ 2.53
                               Device                        2.61        14.90           2.60
                               % Change                      6.53         5.75           2.77

            1973 Chevrolet— Baseline
                         (Avg. 3 tests)                      1.80        18.10           2.07
                               Device                                        —
                         (Avg. 3 tests)                      1.79        17.20           2.06
                               % Change                 —0.56            ~4.97          —0.48


            Baseline and device spark timing advances were measured and with no

            significant difference noted in the engine timing between the two

            installations.


            Open circuit voltages were measured at idle and 2,200 engine rpm on

            a 1973 Pontiac.
                    1



                                                                   Open Circuit Spark Voltage
                                                                   Idle (600 rpm)     2,200 rpm

                BaseTine                                      ~ 22,000 volts         22,000 volts
                Device                                             30,000 volts      28,000 volts


      IV.   Conclusions and Recommendations

            It is the staff‘s opinion that the Tri—Star Corporation "Tiger 500"

            capacitive discharge ignition system will not adversely affect motor

            vehicle exhaust emissions when evaluated with respect to the exhaust

            emissions obtained with a conventional ignition system of a "tuned"                        )




                               Focmean enc m reenegeme mes


Tri—Star Corporation                                     February 8, 1974




     engine.   This device may also have a beneficia1‘effect in the control

     of exhaust emissions if it maintains the "tuned" condition of the

     engine for a longer period of time.   Therefore, the "Tiger 500" capaci—

     tive discharge ignition system should be exempt from the prohibitions

     of Section 27156 of the Motor Vehicle Code for the model years shown

     in Executive Order D—20.




                                                                                C



Document Created: 2005-09-01 12:44:46
Document Modified: 2005-09-01 12:44:46

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