Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on June 6, 1995.
As of Tuesday, July 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsRemarks
1993-1994 Chevrolet Camaro/ Pontiac Firebird with 5.7L engines 1995 Chevrolet Camaro/ Pontiac Firebird with manual transmissions and 5.7L engines 1994 GM B bodies (Caprice type) with 5.7L engines 1992-1994 Chevrolet Corvette LT1 with 5.7L engines 1995 Chevrolet Corvette LT1 with manual transmissions and 5.7L enginesT.P.I.S. Z-28 Kit includes a modified camshaft, 52 mm throttle body, intake manifold and cylinder heads machined to port match,2.0 intake & 1.56 exhaust cylinder head valves, 16 gauge coated mild steel headers, modified PROM to raise idle speed by 150 RPM, adjustable fuel pressure regulator, and an air foil located on top of the 52 mm throttle body.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-235-3
  • Executive Order 235-3 / D235-3
  • ARB # D-235-3
  • Executive Order No: D-235-3
  • C.A.R.B. No. D-235-3
  • Resolution D-235-3
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-235-3 PDF

D-235-3 Document:



                                                  * (Page 1 of 2)
                              State of California
                              AIR RESOURCES BOARD

                           EXECUTIVE ORDER D—235—3
                  Relating to Exemptions Under Section 27156
                             of the Vehicle Code

                    TUNED PORT INDUCTION SPECIALTIES, INC.
                              T.P.1.S. Z 28 KIT
Pursuant to the authority vested in the Air Resources Board (ARB) by Section .
27156 of the Vehicle Code; and
Pursuant to the authority vested in the undersigned by Sections 39515 and
39516 of the Health and Safety Code and Executive Order G—45—9;

IT IS ORDERED AND RESOLVED:      That the installation of the T.P.I.S. Z—28 Kit
manufactured by Tuned Port Induction Specialties, Inc. of 4255 County Road
10 East, Chaska, Minnesota 55318, has been found not to reduce the
effectiveness of the applicable vehicle pollution control system and,
therefore, is exempt from the prohibitions of Section 27156 of the Veh1c1e
Code on the following vehicles:

Vehicle         Vehicle            Vehicle                 Engine Disp.
 Make            Model            Mode? Year     Trans     (liters)

Chev/Pontiac   Camaro/Firebird     1993/94       All                  5.7
Chev/Pontiac   Camaro/Firebird      1995        Manual                5.7
GM             All B Bodies         1994         All                  5.7
               (Caprice type)
Chevrolet      Corvette LTl        1992—94       All                  5.7
Chevrolet      Corvette LTl         1995        Manual                5.7

This Executive Order is valid provided that installation and modifications
are conducted by Tuned Port Induction Specialties, Inc. and that the
recommended tuning specifications for the vehicle are not different than
those of the vehicle manufacturer, except for the idle speed which has been
raised by 150 RPM. Tuned Port Induction Specialties, Inc. must provide a
supplemental tune—up label specifying the new idle speed.

T.P.1.S. Z—28 Kit includes a modified camshaft, 52 mm throttle body, intake
manifold and cylinder heads machined to port match, 2.0" intake and 1.56"
exhaust cylinder head valves, 16 gage coated mild stee] headers, modified
PROM to raise idle speed by 150 RPM, adjustable fuel pressure regu]ator, and
an air foil located on top of the 52 mm throttle body.
Changes made to the design or operating conditions of the T.P.I.S. Z—28 Kit,
as exempt by the ARB, which adversely affect the performance of a vehicle‘s
pollution control system shall invalidate this Executive Order.

Marketing of this T.P.I.S. Z—28 Kit using any identification.other than that
shown in this Executive Order or marketing of the T.P.I.S. Z—28 Kit for an
application other than those listed in this Executive Order shall be
prohibited unless prior approval is obtained from the ARB.


    Tungd Port Induction Specialties,. Inc.              EXECUTIVE ORDER D—235—3
                                     e                   (Page 2 of 2)



    This Executive. Order does not constitute any opinibn as to the effect that
    the use of this T.P.I.S. Z—28 Kit may have on any warranty either expressed
_   or implied by the vehicle manufacturer.
    This Executive Order is granted based on Cold Start CVYS—75 Federal Test
    Procedure emission test results. However, if the ARB finds that reasonable
    grounds exist to believe that use of the T.P.I:S. Z—28 Kit may adversely
    affect emissions of applicable motor vehicles when operating under
    conditions outside the parameters of the Cold Start CVS—75 Federal Test
    Procedure.   Accordingly, the ARB reserves the right to conduct additional
    emission tests, in the future, as such tests are developed, that will more
    adequately measure emissions from all cycle phases. If such test results
    demonstrate that the T.P.I.S. Z—28 Kit adversely affect emissions during
    off—cycle conditions (defined as those conditions which are beyond the
    parameters of the Cold—Start CVS—75 Federal Test Procedure), this Executive
    Order shall be effectively rescinded as of the date the test results are
    validated. Further, if such test results or other evidence provides the ARB
    with reason to suspect that the T.P.I.S. Z—28 Kit will affect the durability
    of the emission control system, Tuned Port Induction Specialties, Inc. shall
    be required to submit durability data to show that the durability of the
    vehicle emission control system is not, in fact, affected and/or that the
    add—on or modified part demonstrates adequate durability.

    In addition to the foregoing, the ARB reserves the right in the future to
    review this Executive Order and the exemption provided herein to assure that
    the exempted add—on or modified part continues to meet the standards and
    procedures of Title 13, California Code of Regulations, Section 2222, et
    seq.

    THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
    APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESQOURCES BOARD OF
    CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
    BENEFITS OF T.P.I.S. Z—28 KIT.

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

    Violation of any of the above conditions shall be grounds for revocation of
    this order. The order may be revoked only after ten day written notice of
    intention to revoke the order, in which period the holder of the order may
    request in writing a hearing to contest the proposed revocation. If a
    hearing is requested, it shall be held within ten days of receipt of the
    request and the order may not be revoked until a determination after hearing
    that grounds for revocation exist.

    Executed at El Monte, Calffornia, this    42    da




                                                              1
                                                 fstant Division Chief
                                              Mobile Source Division


                           State of California
                           AIR RESOURCES BOARD




            EVALUATION OF TUNED PORT INDUCTION SPECIALTIES, INC.
  .       T.P.1.S. Z—28 KIT FOR EXEMPTION FROM THE PROKIBITIONS OF
VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




                                June 1995


                           State of California
                           AIR RESQOURCES BOARD




            EVALUATION OF TUNED PORT INDUCTION SPECIALTIES, INC.
          T.P.I.S. 7—28 KIT FOR EXEMPTION FROM THE PROHIBTTIONS oF
VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




                                     by
                           Mobile Source Division
                            9528 Telstar Avenue
                          El Monte, CA 91731—2990




{This report has been reviewed by the staff of the California Air Resources
Board and approved for publication. Approval does not signify that the
contents necessarily reflect the views and policies of the Air Resources
Board, nor does mention of trade names or commercial products constitute
endorsement or recommendation for use.)


          Tuned Port Induction Specialties, Inc. of 4255 County Road 10 East,

Chaska, Minnesota 55318, has applied for an exemption from the prohibitions in

Section 27156 of the California Vehicle Code (VC) for their T.P.I.S. Z—28 Kit.

The T.P.I.S. Z—28 Kit is designed for installation on the following vehicles:


Vehicle           Vehicle           Vehicle               Engine Disp.
 Make              Mode1           Model Year   Trans     (liters}

Chev/Pontiac     Camaro/Firebird    1993/94      All               5.7
Chev/Pontiac     Camaro/Firebird     1995       Manual             5.7
GM               All B Bodies        1994        All               5.7
                 (Caprice type)
Chevrolet        Corvette LTl       1992—94      All               5.7
Chevrolet        Corvette LTl        1995       Manual             5.7

Tuned Port Induction Specialties, Inc. submitted a completed application and

other required information.

          Based on—results of emissions testing, the staff concludes that Tuned

Port Induction Specialties, Inc.‘s T.P.I.S. Z—28 Kit will not adversely affect

the exhaust emissions on those applicable vehicles for which an exemption is

requested.

          The staff recommends that Tuned Port Induction Specialties, Inc.'be
granted an exemption as requested and that Executive Order D—235—3 be issued.


                                 TABLE OF CONTENTS



                                                     Page Number



SUMMARY

CONTENTS                                                  i1

1.        INTRODUCTION >

II.       CONCLUS TON

III.      RECOMMENDATION

IV.       T.P.I.$. Z—28 KIT DESCRIPTION

V.        DISCUSSION OF T.P.I.S. Z—28 KIT




                                            11


                EVALUATION OF TUNED PORT INDUCTION SPECIALTIES, INC.
              T.P.1.S. Z—28 KIT FOR EXEMPTION FROM THE PROHIBITIONS OF
     VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                            CALIFORNIA CODE OF REGULATIONS


I.        INTRODUCTION
          Tuned Port Induction Specialties, Inc. of 4255 County Road 10 East,

Chaska, Minnesota 55318, has applied for an exemption from the prohibitions in

Section 27156 of the California Vehicle Code (VC) for their T.P.I.S. Z—28 Kit.
The T.P.1.S. Z—28 Kit is designed for installation on the following vehicles:


Vehicle           Vehicle           Vehicle                      Engine Disp.
 Make              Mode]           Mode] Year       Trans        (liters)

Chev/Pontiac     Camaro/Firebird    1993/94          All                  5.7
Chev/Pontiac     Camaro/Firebird     1995           Manual                5.7
GM               All B Bodies        1994            All                  5.7
                 (Caprice type)
Chevrolet        Corvette LTl       1992—94          All                  5.7
Chevrolet        Corvette LTl        1995           Manual                5.7


Tuned Port Induction Specialties, Inc. submitted a completed application and

other required information.

II.       CONCLUSTONS

          Based on results of emissions testing, the staff concludes that Tuned

Port Induction Specialties, Inc.‘s T.P.I.S. Z—28 Kit will not adversely affect

the exhaust emissions on those applicable vehicles for which an exemption is‘

requested.                                                   |

III.      RECOMMENDATION

          The staff recommends that Tuned Port Induction Specialties, Inc. be

granted an exemption for their T.P.I.S. Z—28 Kit for installation on applicable

1992 to 1995 General Motors vehicles.         The staff also recommends that Executive

Order D—235—3 be issued.

IV.       T.P.I.S. Z—28 KIT DESCRIPTION
          Tuned Port Induction Specialties, Inc.‘s T.P.1.S. Z—28 Kit has been

specifically designed for installation on the following General Motors vehicles

equipped with a 5.7L engine:


Vehicle           Vehicle           Vehicle         .      Engine Disp.
 Make              Mode]           Model Year   Trans      (liters)

Chev/Pontiac     Camaro/Firebird    1993/94      All                5.7
Chev/Pontiac     Camaro/Firebird     1995       Manual              5.7
GM               All B Bodies        1994        All                5.7
                 (Caprice type)     .                                     —
Chevrolet        Corvette LTl      1992—94       All                5.7
Chevrolet        Corvette LTl         1995      Manual              5.7

The modified engine operates in conjunction with the original equipment

manufacturer‘s (OEM) computer controlled fuel injection system and emission

control system already certified with the stock engine.

          Tuned Port Induction Specialties, Inc.‘s T.P.1.S. Z—28 Kit modifies the

engine using new and reworked components.       The kit includes a modified

camshaft, throttle body, intake manifold, cy]inder heads, headers, modified

PROM, adjustable fuel pressure regulator, and an air foil.

          The new camshaft, when compared to OEM, is altered in lift by 7.1

percent on the intake lobe and by 13 percent on the exhaust lobe.             Intake and

exhaust duration is altered by less then 1 percent.      The stock throttle body

(48 mm) is replaced by a 52 mm throttle body.     Stock cylinder heads are

machined at both exhaust and intake ports to allow for better port matching

with the exhaust headers and intake manifold and the valves are replaced by

oversized intake and exhaust valves (2.0" intake and 1.56" exhaust).                The stock

exhaust manifold is replaced by a 16 gage coated mild steel header.                On

vehicles with a removable PROM, the idle is increased by 150 RPM.             An

adjustable fuel pressure regulator and air foil installed on top of the 52 mm

throttle body is also included.

V.        DISCUSSION OF T.P.1.S. Z—28 KIT
          Tuned Port Induction Specialties, Inc. has requested that the T.P.I.S.

7—28 Kit be exempted for applicable 1992 to 1995 General Motors vehicles.               A

1994 5.7L Camaro equipped with the T.P.1.S. Z—28 Kit was used as the test

vehicle.    Tuned Port Induction Specialties, Inc. performed testing at


Automotive Testing Laboratories, Inc. in New Carlisle,     Indiana, to be compared

against the vehicle‘s emission standards.

       The results of the exhaust emissions test performed at Automotive

Testing Laboratories, Inc. are shown below.

                             CCVSs—75 TEST RESULTS


                                  NMHC      co       NOx
       Device with DFs Applied    0.23      1.5      0.4

       Standard                   0.39      7.0      0.4
       The CVS-?S emissions test results at Automotive Testing Laboratories,

Inc. indicate that the NMHC , CO and NOx emissions of the vehicle, with the

T.P.1.$. Z—28 Kit installed, are at or below the emission standards set for

that engine family.   The Air Resources, Board did not conduct confirmatory

testing to validate the emission test results submitted by Tuned Port Induction
Specialties, Inc.

       Tuned Port Induction Specialties, Inc. has submitted all the required

information and has fulfilled fhe requirements for én exemption.     Test results

shdw that the T.P.I.S. Z—28 Kit meets the requirements for an exemption.



Document Created: 2005-09-01 12:44:28
Document Modified: 2005-09-01 12:44:28

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