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Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines

Alexander, Ashley, II
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305893914

Abstract Details

2011, MS, University of Cincinnati, Engineering and Applied Science: Mechanical Engineering.
The Formula SAE competition is a collegiate competition in which students are tasked to design, build, and race an open wheeled race car. This task is not a simple one as there is no true correct answer for any decision which is made. Engine selection and tuning is just one small aspect of the car which must be examined for a great deal of time and with thoughtful consideration if the engine is to perform at a competitive level and be reliable. The Formula SAE engine is very simple in many terms, but very difficult in one main aspect: restriction. Depending on the fuel type used, an air inlet restrictor of either 19 or 20 millimeters must be in place through which all air for the engine passes. If it were not for this item, the engines utilized by the students could be off the shelf engines from a number of on- and off-road vehicles and would therefore likely be much more powerful than those currently utilized for competition. As it stands today, the engines used must be modified in order to incorporate and optimize the engine performance around this restriction in a number of ways including fuel delivery. The majority of engines which fit the 610 cubic centimeter displacement requirement in the past were from 4-cylinder motorcycles which were manufactured as 600 cc class on-road sport motorcycles. Today, there are a number of classes of off-road racing previously dominated by 2-stroke 250 cc engines which now allow for 450 cc 4-stroke engines. In order to be competitive from a cost standpoint, these engines have historically been carbureted. More recently though, the price of electronics has fallen to the point where electronic fuel injection can be offered in a cost effective manner and seen by the consumer as a “premium” feature. The consumers have not needed a great deal of research to see that fuel injected engines have more torque, have better response, better tolerance for atmospheric changes, and are more efficient. While these things tend to be taken as fact by the casual rider, this thesis looks to examine the advantages and disadvantages of electronic fuel injection as it applies to a single cylinder Yamaha 450 cc off-road sport quad engine which is intended to be used as the engine for the 2012 University of Cincinnati Formula SAE competition car. For this examination, cost, torque characteristics, manufacturability, and efficiency will all be discussed from a theoretical standpoint, and these points will be discussed as they relate back to the goals of the Formula SAE student competition.
Randall Allemang, PhD (Committee Chair)
Michael Kazmierczak, PhD (Committee Member)
Kumar Vemaganti, PhD (Committee Member)
49 p.
Mechanical Engineering
Formula; SAE; Restricted; Carburetion; Fuel Injection

Recommended Citations

Citations

  • Alexander, II, A. (2011). Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305893914

    APA Style (7th edition)

  • Alexander, II, Ashley. Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines. 2011. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305893914.

    MLA Style (8th edition)

  • Alexander, II, Ashley. "Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines." Master's thesis, University of Cincinnati, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305893914

    Chicago Manual of Style (17th edition)

ucin1305893914
1,233
© 2011, some rights reserved.Creative Commons License Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines by Ashley Alexander II is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.