shley Cooper, 27, had been on life support since his high-speed crash into a barrier on the Adelaide street racing circuit during a support race at the Adelaide 500 died on Feb 25..

Cooper suffered severe brain injuries and failed to regain consciousness.

Adelaide 500 chief executive Andrew Daniels has told media that Mr Cooper's family, including his partner Casey and parents Alan and Maree, were at his bedside when he died.

His two young children, five-year-old Ella and three-year-old Bailey, are being cared for at home at Ulladulla in New South Wales.

Alan Cooper has praised all those who cared for his son since the accident, including track officials, Royal Adelaide Hospital staff and officials of the V8 Supercars competition.

Cooper started racing a decade ago in HQ Holden sedans, then moved to saloon cars.

He scored many round wins and set lap records.

Cooper led the 2005 Commodore Cup championship for most of the year and finished fourth at the final round at Eastern Creek.

In 2006, he was V8 Utes rookie of the year.

Cooper contested three rounds of last year's V8 Supercar series, finishing in the top 15 at Queensland Raceway.