Locally the 4020's had problems if they went much past 115-120 horses...Just about all the 5010-5020's around here had problems when turbos were added and the fuel screw was turned too much....The 806 IH's would handle 130-140 horses..My 856 IH ran a much bigger turbo and was run at about 150-160 horses in the field...It carried lots of oil with a truck oil filter added...It was capable of 190-200 horses in the field but puked water in warm weather so had to turn it down...It was run at 300-350 hp on the pulling track and I had no major problems..After the serious tractor pulling was over with we did ring it but nothing else..
A neighbor had a 5000 Ford with a M&W turbo...It stayed together good at 90 horses..
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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