More Data on ORI Variables

760196

02/01/1976

Event
1976 Automotive Engineering Congress and Exposition
Authors Abstract
Content
The effects of selected fuel additives, engine operating conditions, and driving modes on ORI have been investigated for the 1975 Ford 400 CID engine. A twenty-seven vehicle program was designed with three vehicles per variable. Reduced coolant temperatures significantly lowered ORI. Methanol appears to reduce ORI. Variables which do not produce strong trends are increased air-fuel ratio, a driving cycle with wide open throttle accelerations, a fuel with a carrier oil additive, and heavier fuels.
An inverse relationship between initial octane requirements and ORI was observed.
Meta TagsDetails
DOI
https://doi.org/10.4271/760196
Pages
8
Citation
Saillant, R., Pedrys, F., and Kidder, H., "More Data on ORI Variables," SAE Technical Paper 760196, 1976, https://doi.org/10.4271/760196.
Additional Details
Publisher
Published
Feb 1, 1976
Product Code
760196
Content Type
Technical Paper
Language
English