• Super Modified Tractors are those using any combination of engine(s), transmission(s) and final drive, up to a limit of
    540ci blown (supercharged) engines or 1080 cubic inch naturally aspirated engines. The engine(s) may be up to 60 thou rebored.
  • Weight class is: 4300kg, excluding driver.
  • No portion of a limited modified tractor may exceed 14 feet forward of the centre of the rear wheel, including removable ballast.
  • Maximum width of vehicle is to be 8 feet at its widest point including ballast.
next class: OPEN MODIFIEDS