Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on November 14, 1986.
As of Monday, December 17th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
No. ATS 6.9L1983-1987 model-year Ford Motor Company heavy-duty vehicles powered by a 6.9 liter Navistar International heavy duty diesel engine.Modifications to the OEM emission-related parts due to the installation of the turbocharger kit include replacement of the air cleaner assembly and replacement of the OEM exhaust system with a 3" diameter exhaust system.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-171
  • Executive Order 171 / D171
  • ARB # D-171
  • Executive Order No: D-171
  • C.A.R.B. No. D-171
  • Resolution D-171
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-171 PDF

D-171 Document:



                                                                {Page 1 of 2)

                              State of California
                              AIR RESOURCES BOARD

                             EXECUTIVE ORDER D—171
                  Relating to Exemptions under Section 27156
                              of the Yehicle Code

                             ADVANCED TURBO SYSTEMS
       TURBOCHARGER KIT MODEL NO. ATS 6.9L FOR FORD HEAVY—DUTY VEHICLES
                 POWERED BY A 6.9 LITER NAVISTAR INTERNATIONAL
                            HEAVY—DUTY DIESEL ENGINE

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 Sections 39515 and
39516 of the Health and Safety Code and Executive Order G—45—5;

IT IS ORDERED AND RESOLYED: That the installation of the add—on turbocharger
kit Model No. ATS 6.9L manufactured by Advanced Turbo Systems, Inc., 5919
South 350 West, Murray, Utah 84107, using an AiResearch turbocharger Model No.
TO4B with an A/R ratio of 0.96 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 1983 through
1987 model—year Ford Motor Company heavy—duty vehicles powered by a 6.9 liter
Navistar International heavy—duty diesel engine.
Modifications to the OEM emission—related parts due to the installation of the
turbocharger kit include replacement of the air cleaner assembly and
replacement of the OEM exhaust system with a 3" diameter exhaust system.

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

Changes made to the design or operating conditions of the device, as exempted
by the Air Resources Board, that adversely affect the performance of a
vehicle‘s pollution control system 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 lTisted in this Executive Order shall be prohibfted unless prior approval
is obtained from the Air Resources Board.   Exemption of a kit shall not be
construed as an exemption to sell, offer for sale, or advertise any component
of a kit as an individual device.

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.


ADVANCED TURBO SYSTEMS                                      EXECUTIVE ORDER D—171
                         .                                  (Page 2 of 2)



THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESQURCES BOARD OF ANY
CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
BENEFITS OF THE ADVANCED TURBOQ SYSTEMS TURBOCHARGER KIT FOR INSTALLATION ON
FORD MOTOR COMPANY VEKHICLES POWERED BY A 6.9 LITER NAVISTAR INTERNATIONAL
HEAVY—DUTY DIESEL ENGINE.

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 untrue or misleading
advertising unlawful, and Section 17534 makes violation punishable as a
misdemeanor.

Section 43644 of the Health and Safety Code provides as follows:

    "43644.   (a)   No person shall install, sell, offer for sale, or advertise,
    or, except in an application to the state board for certification 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 certified by
    the state 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
    subdivision is a misdemeanor."

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


Executed at E1 Mohte, California, this     /Z?       day of November, 1986.


                                                 e                   )
                                          / /4¥A //z‘flg\
                                         K. D. Drachand, Chief
                                         Mobile Source Division


                    State of California
                    AIR RESOURCES BOARD




EVALUATION OF THE ADVANCED    TURBO SYSTEMS ADD—ON TURBOCHARGER KIT
    MODEL NO. ATS 6.9L FOR    INSTALLATION IN FORD MOTOR COMPANY
       HEAVY—DUTY VEHICLES    POWERED BY A 6.9 LITER NAVISTAR
              INTERNATIONAL   HEAVY—DUTY DIESEL ENGINE




                         November, 1986


                                                              November, 1986




       EVALUATION OF THE ADVANCED    TURBO SYSTEMS ADD—ON TURBOCHARGER KIT
           MODEL NO. ATS 6.9L FOR    INSTALLATION IN FORD MOTOR COMPANY
              HEAVY—DUTY VEHICLES    POWERED BY A 6.9 LITER NAVISTAR
                     INTERNATIONAL   HEAVY—DUTY DIESEL ENGINE




                                         by
                            Mobile Source Division

                              State of California
                              AIR RESOURCES BOARD
                              9528 Telstar Avenue
                              E1 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

      Advanced Turbo Systems (ATS) has applied for exemption from the

prohibitions in Vehicle Code Section 27156 for their add—on turbocharger kit

Model No. ATS 6.9L designed for 1983—1987 Ford Motor Company heavy—duty

vehicles which are powered by the Navistar International 6.9 liter heavy—duty

diesel engine.

      ATS has submitted a completed application and alil the required

information as well as comparative exhaust emissions data which shows that

their kit does not have an adverse effect on the emissions from the vehicles

described above.   Testing performed at the Haagen—Smit Paboratory confirmed

the results of the tests performed by ATS.           ///

      The staff recommends that ATS be granted an exemption for their add—on

turbocharger kit and that Executive Order D—171 be issued.


                                      CONTENTS



                                                 Page Number



SUMMARY

CONTENTS                                             11

I.     INTRODUCTION

II.    CONCLUSION

III.      RECOMMENDATIONS

IV.    TURBOCHARGER KIT DESCRIPTION

V.     TURBOCHARGER KIT EVALUATION

VI.       DISCUSSION



APPENDIX

       Installation Instructions

       Identification Label                         A—2

       Test Program                                 A—3




                                        11


        EVALUATION OF THE ADVANCED    TURBO SYSTEMS ADD—ON TURBOCHARGER KIT
            MODEL NO. ATS 6.9L FOR    INSTALLATION IN FORD MOTOR COMPANY
               HEAVY—DUTY VEHICLES    POWERED BY A 6.9 LITER NAVISTAR
                      INTERNATIONAL   HEAVY—DUTY DIESEL ENGINE

1.     INTRODUCTION

       Advanced Turbo Systems {ATS) of 5919 South 350 West, Murray, Utah,

84107, has applied for exemption from ihe prohibitions of Vehicle Code Section

27156 for their add—on turbocharger kit Model No. ATS 6.9L for 1983—1987 Ford

Motor Company heavy—duty vehicles powered by the 6.9 liter Navistar

International heavy—duty diesel engine.

       ATS has submitted a completed application, all the necessary information

and comparative exhaust emissions data.

II.    CONCLUSION

       Based on the submitted information and the comparative exhaust emissions

tests performed on a 1986 Ford F—250 heavy—duty diesel truck, the staff

concludes that the installation of the ATS turbocharger kit Model No. 6.9L

will not adversely affect exhaust emissions from the vehicles for which the

exemption has been requested.

III.   RECOMMENDATIONS

       The staff recommends that ATS be granted an exemption for this

turbocharger kit for use on 1983—1987 Ford Motor Company heavy—duty vehicles

powered by the 6.9 liter Navistar International heavy—duty diesel engine and

that Executive Order D—171 be issued.

IV.    TURBOCHARGER KIT DESCRIPTION

       The purpose of the ATS turbocharger system is to increase the power

output of the engine by increasing the volumetric efficiency of it by

compressing the intake charge to pressures above that of the atmosphere.      This


increased pressure allows a greater charge density to enter the combustion

chamber providing more oxygen for combustion.      The maximum fuel delivery is

slightly increased in order to maintain proper air—fuel ratios with the

increased air flow from the turbocharger when it is providing positive

manifold pressure {boost).

       The major components of the system include a 0.96 A/R ratio AiResearch

Model No. TO4B turbocharger, custom intake adaptors, exhaust tubing, air

cleaner assembly, brackets, hoses and the hardware necessary to complete the

installation.

       Maximum positive manifold pressure is limited to 12 psig by the size of

the turbine and the compressor.      The maximum engine speed is regulated by the

OEM fue! injection governor which is not modified by the installation of the

kit.   Therefore, by controlling maximum engine speed, maximum turbine speed

and corresponding boost pressures are also controlled.

       No OQOEM emission controls are removed or disconnected when the

turbocharger kit is installed.

       Installation instructions, included in every kit, show the kit installer

how to properly install the turbocharger system and adjust the maximum fuel

delivery properly (see Appendix 1).     A prototype identification label is shown

in Appendix 2.

¥.     TURBOCHARGER KIT EVALUATION

       Evaluation of the ATS turbocharger kit included analysis of all

submitted information to confirm that it meets the requirements for the

exemption, a comparison of the submitted exhaust emissions data, and a

comparison of the confirmatory emissions data generated at the Haagen—Smit

Laboratory.


      The test vehicle was a 1986 Ford F—250 pick—up with an automatic

transmission.     ATS had requested in writing that the 1987 Ford heavy—duty

diesel vehicles be included in the exemption.              The certification documents

show no difference between the 1986 and 1987 vehicles.              For this reason the

1986 Ford truck was an acceptable test vehicle.

      ATS performed comparative exhaust emissions tests at FCI International

Testing, Inc., in Santa Ana, CA, on the 1986 Ford F—250 described earlier.

The test program used was the "Test Program for Add—On Turbocharger Kits for

Heavy—Duty Engines" (see Appendix 3).        The results of these tests are shown in
Table 1.


                                          Table 1

                           FCI Steady—State Test Results

                                          Exhaust Emissions (ppm)
           Mode                  HC                 CO            NOx

     Baseline Idle              24                    27                31
     Turbo Idle                 17                    18                33

     Baseline 20 mph            26                  O 17                57
     Turbo 20 mph               18                    17                54

     Baseline 30 mph           32                     30                81
     Turbo 30 mph              20                     27                75

     Baseline 40 mph           43                     57               102
     Turbo 40 mph              31                     53               100

     Baseline 5Omph            63                     83               133 |9.%
     Turbo 50 mph              48                     77               147   °

     Baseline 55 mph           84     L              MJ      49        144 _
    Turbo 55 mph               51237                 s3 /              173 y!°)

      Confirmatory testing was performed at the Haagen—Smit Laboratory

and these results are shown in Table 2.


                                        Table 2

                       Confirmatory Steady—State Test Results

                                      Exhaust Emissions* (ppm)

     _____Mode              ___HC                 C0        ___NQx
                                                                    1
     Baseline Idle            25                  160 .        134 i5
     Turbo Idle               25                  146          154
     Baseline 20 mph            16                 86            198 jyl»
     Turbo 20 mph               14                 71            225
     Baseline 30 mph            16                110            190   a+l,
     Turbo 30 mph               14                 84            204

     Baseline 40 mph            22                152            177    ¢Kl
     Turbo 40 mph               20                115            187

     Baseline 50mph             38                169            192      4 &4
     Turbo 50 mph               32                146            207
     Baseline 55 mph            51                169            211          [979
     Turbo 55 mph              42                 142            233
     *Average of two tests in each condition.


      Although it was not required for the evaluation of the ATS

turbocharger system, back—to—back CVS—72 emissions tests with particulate

sampling were performed.    The purpose of these additional tests was to

examine the effect of a turbocharger on the particulate emissions from a

diesel vehicle and to examine any differences between the pass/fail

determination based on steady—state tests and the pass/fail determination

based on transient—type tests.       With the certification test procedures

changing to transient—type testing, for heavy—duty vehicles, the tests

used to evaluate aftermarket parts, for heavy—duty vehicles, may need to

be changed also.    With permission from the ATS representative, these

additional tests were performed with the following results shown in

Table 3.


                                       Table 3

                        CVS—72 Test Results With Particulates


                              Exhaust Emissions g/mi     Particulate Emissions
        Condition               HC      CO      NOx             g/mi

 Baseline                      0.41    1.25      3.88           0.6473

 Device                        0.28    1.15      4.16           0.5413
oVvI.      DISCUSSION
           The steady—state test results indicate that emissions at some test

 points were slightly increased, however, the increases are only a few ppm

 which are well within the sensitivity limits of the instruments.        This

 demonstrates that the addition of the ATS 6.9L Turbocharger kit will not

 have an adverse effect on emissions from the 1983—1987 Ford heavy—duty

 diesel vehicles for which the exemption was requested.

          ATS has submitted all the required information and fulfilled the

 requirements for an exemption.

          The CVS—72 test results with particulates indicate that the ATS

 6.9L turbocharger system does not increase emissions significantly.        This

 is the same determination made based on the steady—state test results.

 The particulate emissions were decreased O.1 g/mi or 16% with the

 turbocharger system installation.      These test results confirm that the

 ATS 6.9L turbocharger system meets the criteria for an exemption.


                            ADVANCED TURBO SYSTEMS
                             P.Q. Box 1042 * Vernal, Utah 84078
                                       (801) 789—4167


               TNSTALLATION PROCEDURE FOR TURBO KIP NUMERR 6.9—085

            IMPORTANE: IT. IS VERY ITMPORTANT TO READ ALL THE INSTRUCTIONS
            CAREFULLY PRIOR TO ANY INSTALLATION 0P THZ TVaBO SYSTEM!

            Normal mechanical and safety procedures should be followed.
            On all pipe threads and fittings, a thread compound should
            be used, On exhaust components, an anti—seize compound must
            be used, Lubricate O—ring seals with an O—ring lubricant or
            vegetable shorting, such as Crisco. Be sure that all parts
            of the turbo system are clean and free of any debris.
            CAUIION: &ny debris in the exhaust or the intake air supply
            components could cause turbo failure. Turco failure due to
            debris would not be covered under any warranty. For warranty
            to be valid, instructions must be read carefully and followed.
            The installation procedure must be retained by vehicle owner
            and read carefully.




                            —INSTALLATION PROCECURE—
     . Discomnnect both batteries at the negative terminals. (safety precaution cnly)
s




     . Remove air clearer and air cleaner canister,
No




%. Remove rear engine lifting bracket and shorten the bracket bolts 3/16 of an
      inck. Reinstall bolts without the bracket.
      Note: Do not install fuel return line retaining clamp, if clamp is present.
Note: Steps 4—6 only fheed to be followed if your vehicle is a 1983 or 1984 model.
4. Remove the fuel return line, which was previously held in position with v:Ae
      rear engine lz.f‘;'.mg bracket bolt. Remove this line only from the passange
      side rear injector
2.    Cut 1/5 of an inch out of the return line between the third and fourth
      injector on the right bank (passanger side). Install the T fitting supplied
      in the kit. Connsct the return which was removed from the rear injector to
      this T fitting in such a manner that the return line will lie on the intake
      manifold directly behind the air intake.
           11 fuel return cap supplied in kit on the rear injector where the return
          iB




      line was previously located.                       '
7. Vericles with an insulating bl amet covering the firewall, must remove the
   entire insulating sound blanket.;
                                          1

                                              —1—


Remove oil pressure sending unit, Install steel adapter where oil pressure
sending unit has been removed behind the inteke manifold.         ghten fitting
so that the 1/4 inch female pipe thread faces the fire wall to the driver‘s
side.
Tnstall the oil pressure sending unit in this female pipe thread. Connect
cil pressure sending unit lead wire,.
Install turbo oil pressure line to the steel adapter in such a manner that
the L fitting connecting the oil line to the steel adapter faces the number
three injector on the left bank (driver‘s side) when tightened.
Remove positive crankcase ventilator from rear of intake manifold.
Ins      rubber plug in rear of intake manifold where positive crankcase
wenrtilator was removed, Do not over—tighten.
Note: The hole where plug is to be installed must be clean and dry.
Using a pry bar or a short piece of 2 inch pipe, bend the lip of the firewall
upward directly behind the turbo mount exhaust inlet, The center of this bend
is 1 1/2 inches to the passenger side of the original location of the oil
pressure sending unit.                                                       j
Install one 3/8 inch stud in the upper rear threaded portion of the right bank
cylinder head (passenger side). Make sure stud is tightened in head.
Relocate       the vacuum block on the firewall above the right bank valve cover.
Tyo new holes will need to be drilled, The location of this vacuum block should
be 2 inches to the passenger side and 2 inches higher than the original location.
Relocate the power brake vacuum hose to the retaining hanger just below the Aood
in the center of the engine compartment. This moves the vacuum hose away from
the turbine nousing of the turbo,.
Vehricles with automatic transmissions, must move the vacuum line from the
            on over the bell—housing retaining bolt on the passenger side, to a
        :        ing the top bell—housing retaining bolt on the driver‘s side of


              turbocharger to turbo mount, using studs, turbo flange, nuts       a   lock
              rovided in kit.

Install O—ring seal in oll drain assembly, Attach       oil drain assembly to turbte
using allen head cap serews provided.

At this time, either install a 1/8 inch pipe plug or a manifold rressure adapter
in the threaded portion of the pressure chamber.
                     incn I.D. O—ring seal and install C—ring seal in    presgure
                    —ring seal lubricated, pushk pressure chaiber cver
                    ssor housing.     '



             the pyrometer thermocouple adapter in the turbo mount casting in the
1/4—18 NFT threaded portion.              ~


      At this time, the final exhaust brace must be checked for proper cli
      Bolt the final exhaust brace to the turbo mount,. Without the piston
      seal installed, install the final exhaust from the turbo, holding the casting
      flat agairst the inside of the turbine housing, rotate the casting tcwards
      the brace that has been mounted to the turbo mount. If the two holes do not
      line up exactly, the brace hole must be elongated so that a proper alignment
      is obtained. After proper alignment is obtained, remove the final exhaust
       casting and brace.                                             '
      Install large O—ring seal over intake manifold where the air cleaner gasket
      was located,. Be sure O—ring seal is well lubricated.
      With steps 18—25 completed on work bench, install assembly on engine using
 OV
td




       the one stud and two 3/8 X 1 inch cap serews lock washers ard nut provided.
       Install the base of the oil drain line in the grommet where the positive
No




       crankcase ventilator was removed, Be sure that the fuel return line is forward
       (towards radiator) of the oil drain line.
       Secure pressure chamber with the O—ring washer and bolt provided.
207. Route the oil supply line, so that the throttle cable, the cruise control
      cable, and the plastic wire assembly are under the oil supply line, This
      helps keep the cables and wire assembly away from the turbine housing of the
      turbe.         '
30. Route the oil supply line to the driver‘s side of the oil drain line, Kow
       route the line between the turbo anc the pressure chamber. Connect the itraight
       end of the cil supply line to the fitting in the turbo and tighten secursly.
      Using a hack—saw or pipe cutter, cut the stock exhaust pipe approximatley
Nt
ca
+




      1 3/4 inches to the rear of the stock Y assembly. This is where the left and
      right bank exhaust tubing come together. Also cut the same exhaust pipe
      approximately 3 inches forwars of the front exhaust hanger.
      Note: If three inch exhaust is going to be used, only the first cut is necessery
      ard the rest of the exhaust system must now be removed.
      \Using a pisce of solid stock approvimately 2 3/16 inches in diameter, drive
      this into the remaining Y portion of the pipe. This is to make the pipe rourd
      in this area, The O.D. of the remaining Y pipe should not exceed 2 1/2 inches
      in diameter. Using a file, clean and remove any burrs from the inside and
       utside of the Y pipe.
      Before installing exhaust feed pipe, loosen (do not remove), the exhaust
ho
Lo
&




      flange retaining nuts that hold the exhaust Y assembly to the exhaust manif clds.
      Now install exhaust feed pipe. With washers and nuts started, make sure tha as
      the feed pipe is pushed as far forward on the Y pipe as possible, then install
      the 2 1/2 inch muffler clamp and tighten securely. Now tighten +i
          ze securely at the turbo mount. Once feed pipe assembly m
               y,   fignten the exhaust flanges at both exhaust manifold
            es with automatic transmissions, must now remove the dip sti
      the automatic transmission.
      Install piston ring seal in final exhaust and using the brace and two
      inch cap scrows and lock washers, install fimal exhaust assem       :
      assembly into position.


z6.                o 5/16 X 3/% inch cap screws and flat washers provi
                                                        take manifold i
                                                    acp screws, Hmflmw the


37.                                   O—ring seal and
                                      of the air cleaner
                    push bese casting over turto inlet an
                     the angle bracket. With the air cleansr base in
                      ket through the 5/16 inch taped holes in t
                      e casting upward and remove   the angle t




      Retate the                    casting downward and secure into position usit
                                   ews and flat washers proviced.
                              driver‘s side) valve cover, being careful not to




                    valvs cover on the engine using the ovriginal valve cover gasket.

44. Instal]l the vent bose assembly to the air cleansr base casting with the hardware
    >   y      Lubricate the inside of the valve cover grommpet and install the vent
                  in this lubricated grommet.




         tall air cleansr elgment in air cleaner cover casting.
      sover to air cleaner by first centering the cover casting
                     the over—center‘latches.
                                           +
                                          1
                                              1


                             —FINAL EXHAUST—       <
The best turbo response is going to be realized by using three inch exhaust
tubing without a muffler., The next best response will be realized by using
three inch exhaust tubing anrd a good low restriction muffler. The third best
response is obtained by using three inch exhaust tubing back to where the
2 1/2 inch exhaust was cut near the welded bracket and then using no muffler.
CAUTION: Excessive back pressure will result in excessive exhaust temperature.
A pyrometer is supplied in the kit. DO NOT éxceed 1150 degrees Fahrenheit.
This reeding is taken from the turbo feed and not the discharge side of the
turbo, We recommend that the final exhaust be done in one of the three ways‘
just mentioned.



                       ~INJECTION PUMP SETTING—
To realize the benefit from turbocharging your engine, the injection pump
maximum fuel delivery should be increased. This is done by removing the
timing cover on the passenger side of the injection pump and rotating the
engine in direction of engine rotation until the allen head leaf spring
adjusting screw is centered in the opening. Using a 5/32 allen wrench,
turn the allen head serew inward (clockwise) to increase pump output and
outward (counter—clockwise) to reduce injection bump cutput. The injection
pump putput will determine maximum exhaust temperature. We recommend an
increase of 1/4 of a turn.

a                                                                      . wWhen
reinstalling the injection pump timing cover, DO NOT over—tighten the small
retaining bolts, this will make the gasket leak.


                                 —DOES~ _
1. Keep air cleaner elemont clean, When the element becomes dirty, change it.
   A dirty air cleaner element will cause excessive exhaust temperature and
   excessive oil consumption.                 '
2. Change oil at intervals of not more than 2 ,500 miles, Change oil filter
   element with every oil change.

3. When shutting down engine, make sure that exhaust temperature is below
   350 degrees Fahrenheit.

4. Keep fuel filter element clean. Drain water from fuel regularly. Clean
    diesel fuel will assure long trouble free injecetion pump and injector
    life.
5. When starting your engine, DO NOT rev your engine until ofl pressure is
   showing on your gauge.
    If these cautions are followed, long trouble free miles will be experienced
    with your turbocharged engine,.


                     aU
              A—2




ADVANCED ~TuRrBQ;SYSTEMS,INC.


+
                                                         a
                                                         1
                                            A—3          l



    Test Program for Add—On Turbocharger Kits for Heavy—Duty Engines

    Testin        will consist of back—ta—back chassis dynamometer tests. Baseline
    {unmodiffed configuration} emission results will be compared to
    turbocharged (modified configuration} emission results on the same
    vehicle.

    A.       STEADY STATE TESTS

             1)     Idle

             2) 20, 30, 40, 50 and 55 mph at IXRL.
             Prior to measuring exhaust emission at any steady state test point,
             the vehicle‘s engine temperature shall be stabijlized. This is
             satisfied when engine ol temperature is stabilized as monitored
             and indicated by a temperature recorder.

             If a steady state point is unattainable in the baseline
             configuration, then the last point at a specified horsepower should
             be WOT and the speed should be recorded.    The test in the
             turbocharged configuration will be performed at the same speeds and
             horsepower as the baseline configuration.

             Any steady state may be deleted if 1) the steady state exceeds or
             can be expected to exceed the engine redline or 2) steady state
             conditions might cause serjous damage to vehicle components or
             dynamonmter, or create a hazard for test personnel.

             STEADY STATE DATA REQUIREMENTS

             1)    CO concentration

          2)       CO3 concentration

         3)        HC concentration (by HFID)

         4)        NOx concentration

         5)        engine rpm

         6)        engine oil temperature

         MISCELLANEQUS

          1)       The same fuel will be used for both the unmodified and modified
                   configurations unless the turbocharger manufacturer‘s written
                   instructions specify a different fuel for the turbocharged
                   configuration. +


                        i/g715 L/O/?Z/\
2)   Tire pressure in the drive wheels will be the maximum indicated
     on the tire sidewall.

3}   Test vehicles from secondary manufacturers may be tested
     without a body shell if 1) the cab is intact, 2) the vehicle is
     legally driveable on the street, 3) the frontal area is
     identical to the built—up vehicle, 4) the chassis is loaded to
     a weight simulating loaded vehicle weight. Loaded vehicle
     weight is defined as the manufacturer‘s estimated weight of the
     vehicle in operational status with all standard equipment, the
     weight fuel at nominal tank capacity, and the weight of
     optional equipment.



Document Created: 2005-09-01 12:44:18
Document Modified: 2005-09-01 12:44:18

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