A limited field survey was conducted to determine whether full-throttle acceleration from low engine speed is suitable for road knock tests of fuels in manual-transmission Japanese cars.Varying knock levels, fuels, cars, and drives were used on a route typical of average Japanese driving. Knock did occur most frequently during full-throttle acceleration from low engine speed. Part throttle knock was encountered, also.Maximum octane-number requirements of four Japanese cars were measured and were as high or higher at 2 in. Hg manifold vacuum as at full throttle. Four typical Japanese fuels were rated in the cars at both throttle settings. These tests indicated that fuel segregation may be important at both full and part throttle.


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    Title :

    Road Knock Occurrence in Japan


    Additional title:

    Sae Technical Papers


    Contributors:
    Nakajima, K. (author) / Uchinuma, K. (author)

    Conference:

    1965 International Automotive Engineering Congress and Exposition ; 1965



    Publication date :

    1965-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Road knock occurrence in Japan

    Uchinuma, K. / Nakajima, K. | Engineering Index Backfile | 1965


    1937 Road Knock Tests

    Boyd, T. A. | SAE Technical Papers | 1938


    1937 road knock tests

    Boyd, T.A. | Engineering Index Backfile | 1938


    1937 road knock tests

    Boyd, T.A. | Engineering Index Backfile | 1938


    Road vs. Laboratory knock ratings

    Duckworth, J.B. / Moore, G.T. / Domke, C.J. | Engineering Index Backfile | 1950