Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on May 24, 1999.
As of Thursday, December 13th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModificationRemarks
1991-99 Acura NSX equipped with either the 3.0 or 3.2 liter engineThe NSX Supercharger Package includes the following major parts: Whipple 6 psi. supercharger with an intake assembly, 3.8" diameter supercharger pulley (applicable to the 3.2 liter engine), 4.2" diameter supercharger pulley (applicable to the 3.0 liter engine), crankshaft pulley (same diameter as stock), in line fuel pump, PROM chip for 1991-1994 models only, and all necessary installation hardware.The installation of the kit requires the following modifications to the stock vehicle: The stock crankshaft pulley is removed and replaced by an equal diameter pulley which is modified to accommodate the supercharger drive belt, the MAP sensor wire is modified with an in-line resistor for 1991-1994 models only, an in-line fuel pump is installed next to the fuel filter, the stock 15 amp fuel pump fuse is replaced with a 20 amp fuse, a resistor located on stock fuel pump is removed, and the stock intake manifold is removed and replaced with the combination supercharger and intake manifold configuration.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-455-4
  • Executive Order 455-4 / D455-4
  • ARB # D-455-4
  • Executive Order No: D-455-4
  • C.A.R.B. No. D-455-4
  • Resolution D-455-4
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-455-4 PDF

D-455-4 Document:



                                                                                      (Page 1 of 2)

                                                State of California
                                            AIR RESOURCES BOARD



                                          EXECUTIVE ORDER D—455—4
                                   Relating to Exemptions Under Section 27156
                                                of the Vehicle Code


                                           ‘COMPTECH MACHINE
                                       NSX SUPERCHARGER PACKAGE


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 39515 and Section 39516 of the Health and Safety
Code and Executive Order G—45—9;                                    |

IT IS ORDERED AND RESOLVED: That the installation of the NSX Supercharger Package, manufactured and
marketed by Comptech Machine, 4717 Golden Foothill Parkway, El Dorado Hills, California 95762 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 Vehicle Code for 1991—99 Acura NSX equipped with either the 3.0
or 3.2 liter engine.

The NSX Supercharger Package includes the following major parts: Whipple 6 psi. supercharger with an intake
assembly, 3.8" diameter supercharger pulley (applicable to the 3.2 liter engine), 4.2" diameter supercharger pulley
(applicable to the 3.0 liter engine), crankshaft pulley (same diameter as stock), in line fuel pump, PROM chip for
1991—1994 models only, and all necessary installation hardware.

The installation of the kit requires the following modifications to the stock vehicle: The stock crankshaft pulley
is removed and replaced by an equal diameter pulley which is modified to accommodate the supercharger drive
belt, the MAP sensor wire is modified with an in—line resistor for 1991—1994 models only, an in—line fuel pump is
installed next to the fuel filter, the stock 15 amp fuel pump fuse is replaced with a 20 amp fuse, a resistor located
on stock fuel pump is removed, and the stock intake manifold is removed and replaced with the combination
supercharger and intake manifold configuration.                                                                 |

This Executive Order is valid provided that the installation instructions for the NSX Supercharger Package will
not recommend tuning the vehicle to specifications different from those of the Honda Motor Company.

This Executive Order shall not apply to any Comptech Machine NSX Supercharger Package advertised, offered
for sale, or sold with or installed on, a motor vehicle prior to or concurrent with transfer to an ultimate purchaser.

Changes made to the design or operating conditions of the NSX Supercharger Package, as exempt by the Air
Resources Board, which adversely affect the performance of the vehicle‘s pollution control system shall invalidate
this Executive Order.

Marketing of the NSX Supercharger Package using any identification other than that shown in this Executive
Order or marketing of the NSX Supercharger Package for an application other than those listed in this Executive
Order shall be prohibited unless prior approval is obtained from the Air Resources Board. Exemption of the
NSX Supercharger Package shall not be construed as exemption to sell, offer for sale, or advertise any component
of the kit as an individual device.

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


COMPTECH MACHINE                                                            Executive Order D—455—4
NSX Supercharger Package                                                    (Page 2 of 2)




This Executive Order is granted based on the following submitted emissions test data on a 1997 Acura NSX
equipped with the 3.2 liter engine and certified to a tier 1 emission standard:
                     NMHC CO             NOX
Standards            0.25        3.4     0.4
device w/ dfs        0.16        1.1     0.3

Test results showed that the supercharger when installed on the vehicle did not cause tailpipe emissions to
exceed the vehicle‘s applicable emission standard during a Cold Start CVS—75 Federal Test Procedure. This
Executive Order is also based on On Board Diagnostic II (OBD II) testing conducted on the same vehicle.
Test data showed that the NSX Supercharger Kit when installed on the vehicle did not affect the vehicle‘s
ability to perform its OBD II monitoring.

However, the ARB finds that reasonable grounds exist to believe that use of the NSX Supercharger Kit may
adversely affect emissions of motor vehicles when operating under conditions outside the parameters of the
previously prescribed test procedures. 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 NSX Supercharger 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 NSX Supercharger Kit will affect the durability of the emission control system, Comptech Machine
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.

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 COMPTECH MACHINE‘S NSX SUPERCHARGER PACKAGE .

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 a 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.

Executive Order D—455—1, dated May, 1998, is superseded and of no further force and effect.

Executed at El Monte, California, this aA 2     day of May 1999.




                                        R. B. Summerfield, Chief
                                        Mobile Source Operations Division



Document Created: 2005-09-01 12:40:57
Document Modified: 2005-09-01 12:40:57

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