Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 18, 1994.
As of Monday, December 10th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
2-435, 2-436 2-437, 2-4381992-1994 GM 6.5 liter series 1500, 2500, and 3500 diesel pickups with OEM turbochargers.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-140-29
  • Executive Order 140-29 / D140-29
  • ARB # D-140-29
  • Executive Order No: D-140-29
  • C.A.R.B. No. D-140-29
  • Resolution D-140-29
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-140-29 PDF

D-140-29 Document:



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


                          EXECUTIVE ORDER D—140—29
                 Relating to Exemptions Under Section 27156
                            of the Vehicle Code


                     SPEARCO PERFORMANCE PRODUCTS, INC.
                             INTERCOOLER SYSTEM


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—5;

IT IS ORDERED AND RESOLVED:   That the installation of the Intercooler
System, Part #‘s: 2—435, 2—436, 2—437, and 2—438, manufactured by Spearco
Performance Products, Inc. (Spearco) of 14664 Titus Street, Panorama City,
CA 91402, has been found not to reduce the effectiveness of required motor
vehicle pollution control devices, and therefore is exempt from the
prohibitions of Section 27156 of the Vehicle Code for installation on 1992 —
1994 mode} year General Motors 6.5 liter series 1500, 2500, and 3500 diesel
pickups with OEM turbochargers.

This exemption shall not apply to any device, apparatus, or mechanism
advertised, offered for sale or sold with, or installed on a motor vehicle
prior to or concurrent with transfer to an ultimate purchaser.

This Executive Order is valid provided that the installation instructions
for the intercooler system will not recommend tuning the vehicle to
specifications different from those submitted by Spearco.

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

Marketing of the Intercooler System using an identification other than that
shown in this Executive Order or marketing of the Intercooler System 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 Intercooler System kit 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 that
the use of the intercooler system may have on any warranty either expressed
or implied by the vehicle manufacturer.


 SPEARCO PERFORMANCE PRODUCTS, INC.                  EXECUTIVE ORDER D—140—29
 INTERCOOLER SYSTEM                                  (Page 2 of ?)

 This Executive Order is granted based on an evaluation if emissions tests
 were conducted in accordance with Cold—Start CVS—75 Federal Test Procedure.
 However, if test results or other evidence provides the Air Resources Board
 with reason to suspect that the Spearco Intercooler System will affect motor
 vehicle emissions or the durability of the emission control, Spearco shall
 be required to submit emission and durability data to show that the
 emissions and durability of the vehicle emission control systems are not,      in
 fact, affected and/or that for emission control systems, the add—on or
 modified part demonstrates adequate durability. If such test results
 demonstrate that the Spearco Intercooler System adversely affects emissions,
 this Executive Order shall be effectively rescinded as of the date the test
 results are validated.

 In addition to the foregoing, the Air Resources Board 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 RESOURCES BOARD OF ANY
 CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
 BENEFITS OF SPEARCOQ PERFORMANCE PRODUCTS, INC. INTERCOOLER SYSTEM.

 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.          >le

 Executed at E1 Monte, California, this   //?/   day of August, 1994.




                                                    R.  8. Summerfiel
                                                    Assistant Division Chief
                                                    Mobile Source Division


                      State of California
                      AIR RESOURCES   BOARD




       EVALUATION OF SPEARCO PERFORMANCE PRODUCTS, INC.‘s
                 AIR—TO—AIR INTERCOOLER SYSTEM
      FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE
SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                 CALIFORNIA CODE OF REGULATIONS




                         August 1994


                            State of California
                            AIR RESOURCES   BOARD




             EVALUATION OF SPEARCO PERFORMANCE PRODUCTS, INC.‘s
                       AIR—TO—AIR INTERCOOLER SYSTEM
            FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE
      SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




                                     by
                           Mobile Source Division
                            State of California
                            Air Resources Board
                            9528 Telstar Avenue
                            El Monte, CA    91731




(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.)


                                     SUMMARY




          Spearco Performance Products,   Inc.   (Spearco)   of 14664 Titus Street,

Panorama City, CA 91402 has applied for exemption from the prohibitions in

Section 27156 of the California Vehicle Code (VC) on their air—to—air

Intercooler System designed for 1992 — 1994 model—year General Motors 6.5 liter

diesel engines with turbochargers.

          Based on an engineering evaluation of the Spearco air—to—air Intercooler

System,   the staff concludes that the Spearco air—to—air Intercooler System will

not adversely affect exhaust emission from vehicles for which the exemption is

requested.

          The staff recommends that Spearco Performance Products,       Inc. be granted

an exemption as requested and that Executive Order D—140—29 be issued.


                                TABLE OF CONTENTS




                                                         Page Number




SUMMARY                                                        i

CONTENTS                                                      i4

I.        INTRODUCTION                                         1

II.       CONCLUSIONS      '                                   1

III.      RECOMMENDATION                                       1

Iv.       INTERCOOLER SYSTEM DESCRIPTION AND OPERATION         2

v.     DISCUSSION                                              3

vI.    APPENDIX                                                5

          INSTALLATION INSTRUCTIONS                            5




                                       i1


                 EVALUATION OF SPEARCO PERFORMANCE    PRODUCTS,   INC.‘s
                         AIR—TO—AIR INTERCOOLER SYSTEM
              FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE
        SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                          CALIFORNIA ADMINISTRATIVE    CODE



I.     INTRODUCTION


       Spearco Performance Products,    Inc.   (Spearco)   of 14664 Titus Street,

Panorama City,    CA 91402 has applied for an exemption from the prohibitions in

Section 27156 of the California Vehicle Code for the Spearco air—to—air

Intercooler System designed for installation on 1992—1994 model—year General

Motors 6.5 liter diesel engines with turbochargers.

       Spearco Performance Products,    Inc.   submitted pictures and specifications

of the system for evaluation.




II.    CONCLUSTIONS

       Based on previous comparative tests evaluating the exhaust emission

effects of several add—on intercooler systems and the staff‘s engineering

evaluation of the intercooler‘s impact on exhaust emissions from turbocharged

vehicles, the staff concludes that Spearco‘s air—to—air intercooler system will

not adversely affect exhaust emissions from the vehicles for which exemption is

requested.




III.   RECOMMENDATION

       The sgaff recommends that Spearco be granted an exemption for their

Intercooler System for installation on 1992—1994 model—year General Motors 6.5

liter diesel engines with turbochargers.       The staff also recommends that

Executive Order D—140~29 be issued.


IV.    INTERCOOLER SYSTEM DESCRIPTION AND OPERATION

       The purpose of the Spearco air—to—air intercooler system is to reduce

the temperature of the intake air going into the turbocharged engine.        This

reduction in intake air temperature allows a higher charge density which

results in increased power and torque.     In addition,   as the thermal   loading on

the engine is reduced,    so is the transfer of heat to the cooling system,    which

assists in maintaining normal coolant temperature under high demand engine

operating conditions.

       The components of the Spearco air—to—air Intercooler System are a heat

exchanger,   a modified intake manifold extension,   and inter—connecting mandrel

bent tubing.     The system is packaged with installation hardware and

instructions and sold as a kit.     Spearco modifies the 1994 model—year General

Motors intake manifold extension for use with all the kits.      Although this

manifold extension is shortened to make room for the intercooler tubing,       the

two OEM sensor port locations are not changed since they are in the end that is

not modified.     For the 1992—1993 model years, this modified manifold extension

will need to have the M.A.P.    and air intake temperature sensor ports plugged,

as these model—years do not have these two sensors.       For the 1994 model year,

these two sensors are placed in the modified intake manifold extension in the

original OEM configuration.     Aside from these sensors, Spearco stated that the

manifold does not change for the 1992—1994 model years.

       The Spearco Intercooler System is located at a low location which does

not affect ground clearance, and allows the intercooler to use air passing

beneath the vehicle as its working/cooling fluid.     The heated charge air flows

from the turbocharger and through the cooling tubing of the air—~to—air heat

exchanger.     The charge air is cooled as air flows around and between the tubing

and heat exchanging fins of the intercooler.


       For the 1994 model year, the wastegate actuator, which controls boost

pressure,   is electronically controlled through inputs from intake air

temperature and manifold pressure sensors.     These two sensors are downstream of

the Spearco Intercooler System, so there is no compensation necessary for the

change in boost pressure caused by the intercooler.

       For the 1992 — 1993 model years,   the wastegate actuator controls boost

pressure by turbine pressure or backpressure inside the turbocharger.     With the

addition of an intercooler into the intake system, the pressure into the intake

manifold will be decreased.    Spearco states that at all conditions,   except near

maximum rpm, at full load, the loss in pressure is offset by the cooled, more

dense air entering the engine.    However, Spearco recommends modification of the

wastegate actuator rod for all applications to increase the boost pressure

upstream of the intercooler.     To do this Spearco recommends removing the

wastegate actuator rod,   shortening the actuator rod 0.05 — 0.10 inches, and

then welding the actuator rod back in place.    This should result in the same

pre—intercooler boost pressure into the intake manifold.

       The Spearco air—to—air intercooler system does not require the movement

or modification of any of the OEM emission control devices,   or change the tune—

up specifications.




v.     DISCUSSION

       The staff conducted an engineering evaluation on the Spearco air—to—air

Intercooler System‘s effect on the exhaust emissions of the 1992—1994 model

year General Motors 6.5 liter diesel turbocharged engines.    The Intercooler

System was evaluated for potential changes in the boost pressure which could

increase exhaust emissions.


       Since the wastegate actuator is electronically controlled on the 1994

model—year, and the two input sensors for this control are downstream of the

Spearco Intercooler System, there is no compensation necessary for the change

in boost pressure caused by the intercooler.    The wastegate actuator rod is

modified on the the 1992 — 1993 model—years to maintain the pre—intercooler

boost pressure.   Therefore,   it is staff‘s opinion that there will be no adverse

effect in emissions due to boost pressure changes from the Spearco Intercooler

System on the affected vehicles.

       Spearco has previously been issued a number of exemptions for their

intercooler systems.     The previous exemptions were granted on the basis that

the use of the intercooler system would not adversely affect the vehicle‘s

emissions or degrade the vehicle‘s driveability.    Spearco has stated that the

thermal efficiency of this Intercooler System ranges between 60% and 85%.

Based on the predicted efficiency of the Spearco Intercooler System,    and a

review of the device theory of operation, the staff believe‘s that the use of

Spearco‘s Intercooler System will not adversely affect vehicle emissions or

degrade the vehicle‘s driveability.

       In addition,    it is the staff‘s opinion that the combustion temperature

will be reduced as a result of cooler intake charge with use of an air—to—air

intercooler.   This reduction in combustion temperature will reduce the

formation of NOx gases in the combustion chamber,   resulting in less NOx

emissions in the exhaust emissions.



Document Created: 2005-09-01 12:44:15
Document Modified: 2005-09-01 12:44:15

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