The Seventies - all had problems. Ford's VV carburetor had...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
The Seventies Automobile technology in the 1970s was greatly influenced by both concerns over air pollution and concerns over fuel economy — two things that seemed to be mutually exclusive for many years: Early emissions controls, which were done as cheaply as possible to meet the new EPA mandates, ended up reducing power output and, ironically, fuel economy dramatically; an average car of the mid-1970s was cleaner-running than one from 10 years prior, but could go about half as far on a gallon of gas (the average fuel economy for larger cars, cars whose 2011 equivalents average about 20 miles to the US gallon or more, was in single digits ). Ford and Chrysler both worked on systems that would try to reduce emissions as cheaply as possible (as well as control the fuel mixture, since running the engine rich will burn up the catalytic converter quickly), but they
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: all had problems. Ford's VV carburetor had a design flaw that, when it appeared, would set the mixture so lean that the engine wouldn't run. Chrysler's system was a full analog computer that could also control spark timing, but it had reliability problems as well. Neither of these did much to help, and by model year 1980 the car makers had resorted to putting smaller engines in simply to be able to meet the mandates, performance or drivability notwithstanding. • Other manufacturers were less set in their ways and were more willing to use better ways of doing things. Honda's CVCC engine used a special cylinder head to improve efficiency, making an engine that was so clean it could pass the 1975 emissions regulations without a catalytic converter. Volkswagen was an early advocate of Bosch's mechanical fuel injection systems....
View Full Document

This note was uploaded on 01/17/2012 for the course AMH AMH2010 taught by Professor Pietrzak during the Fall '10 term at Broward College.

Ask a homework question - tutors are online