11-11-2018, 05:28 AM
Colin Chapman in the 1951 750MC Goodacre Trophy races used a 3-bearing engine in his Lotus III (as did the "Australian Single Seater" racers). Presumably the crank was changed frequently. I have seen somewhere that Lotus III's crankcase was strengthened and used, in true Chapman fashion, to stiffen the front of the chassis. In "design for competition" Jack Cotton describes a method of doing this. Has this been widely tried and found to be useful?