71-31
Exhaust Emissions from a 1971 Passenger Car
Equipped with the "Paser Magnum Electronic
     Anti-pollution Engine Economizer"
                      1971
              John C. Thomson
 Bureau of Mobile Source Pollution Control
          Office of Air Programs
      ENVIRONMENTAL PROTECTION AGENCY

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Vehicle Tested


The exhaust emission characteristics of the "Paser Magnum"


device on a 1971; vehicle were desired for use by this Agency


and other Government agencies.  In order to accomplish this


test in the shortest period of time, a 1971 Ford owned by


the Environmental Protection Agency was used for evaluation.
                                   Nflt-

This vehicle is equipped with automatic transmission, air


conditioning and a 351 cubic inch displacement engine.  The


vehicle had been driven in normal use prior to the test and


was continued between test programs.



The "Paser Magnum" is a device that fits between the


distributor cap and the spark plug wires and is claimed to


"...pre-condition the gases in the non-firing cylinders."



Test Used


For evaluation purposed the Federal emission test procedure


for certification of 1971 vehicles was used.  This is the


open cycle 7-mode test and both hot and cold starts were


used.  For certification purposes, only cold start data is


used although the hot start information is occasionally


useful to show trends.  As the "Paser Magnum" was previously


evaluated using the 1972 Federal procedure it was not felt


that the additional tests using that procedure were required.


All requirements for instruments for the 1971 tests were met


and in addition a'' non-dispersive infra-red detector was used

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                          - 2 -


for oxides of nitrogen.   It should be noted that when using


this continuous analysis procedure for NOX data, apparent


differences of up to one gram per mile are possible from
 i

identical systems.     ...




Emission Results


The data shown-in Table  I compare the baseline vehicle and


the vehicle with "Paser  Magnum" installed.  In both sets of


tests a comparison of the data was made before and after a


250-mile accumulation.  This data indicates that there is


no measurable effect on  emissions on this vehicle caused


by installation of the "Paser Magnum" device.  In Table II,


data taken from the hot  start test is shown.  This data


also indicates no measurable emission effect due to the


device's installation.  In addition, there were no notice-


able changes in any other operating parameter after


installation of this device.  ,




Conclusions•


1.   The "Paser Magnum" shows no measurable.effect on exhaust


    emissions in this test procedure.

                      .»           •' •
2.   During 250 miles of  driving the "Paser Magnum" showed


    no emission -.'.reduction. .

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                        Table  I
           "Paser Magnum" evaluation using the
              Cold Start 1971 Emission TestJ
Baseline (no device)



Before mileage

After 250 miles


"Paser Magnum"

Before mileage

After 250 miles


Federal 1971 Standards
HC
1.3
1.5
1.6
1.6
CO
21
20
23
24
NOX
4.1
4.9
4.7
3.9
                          2.2
23
No Standard
All results are in grams per mile.

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                        Table II
           "Paser Magnum" evaluation using the
              Hot Start 1971 Emission Test
Baseline (no device)

                           HC           CO           NOX

Before mileage            1.2           10           5.2

After mileage'             1.2           13           5.1


"Paser Magnum"

Before mileage            1.1           12           4.7

After mileage             1.2           11           4.9
All results are in grams per mile

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