The two Victorians, Gary Tierney, 60 and David Carra, 43 will be honoured with a minute's silence and prayer ahead of racing today. All cars will wear a black-tape stripe on their left headlight as a mark of respect.
One of the victim's brothers, Mr Andrew Carra, said last night that his brother had worked for international world rally teams as a mechanic and had devoted his life to motor sport since the 1980s.
"He knew the risks and that was his life," he said. "Dave absolutely loved his rallying. Everyone has to jump off this life at some stage and he did it doing what he absolutely loved. We're obviously very proud of David and what he achieved."
The accident happened 4.2km into the 7.2km stage known as Kersbrook Reverse.
Director Ivar Stanelis expressed his sorrow to the families of the two men.
"We all understand that motor racing can be dangerous, despite thorough safety systems," he said.
Race organisers have pledged a full inquiry into the fatal smash.
With Adelaide Now