Record Display for the EPA National Library Catalog

RECORD NUMBER: 247 OF 799

OLS Field Name OLS Field Data
Main Title Effect of Ignition Timing Modifications on Emissions and Fuel Economy.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Technology Assessment and Evaluation Branch.
Year Published 1975
Report Number EPA-AA-TAEB-76-04;
Stock Number PB80-175714
Additional Subjects Motor vehicles ; Tests ; Exhaust gases ; Ignition systems ; Time measurement ; Emission ; Tables(Data) ; Emission control systems ; Fuel economy ; Automotive fuels
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB80-175714 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 28p
Abstract
The Emission Control Technology Division of the Environmental Protection Agency is interested in engine control techniques that influence emissions and fuel economy. One engine parameter that is readily adjustable is basic ignition timing, and it was desired that data be collected on a variety of late model (1975) vehicles to quantify its effect. Data from such a program would be useful in studies of inventor devices which occasionally include timing adjustments as part of the installation instructions, in tampering studies where investigations are made of the effect of emission control system modification, and in octane requirement problem investigations because of the influence of ignition timing on octane requirements.