Kicked out of home and "having a bad day" Wipuhara Kapene drove at three times the speed limit on an urban road.
The 17-year-old pleaded guilty to dangerous driving before Judge Jill Moss in Masterton District Court on Thursday.
Police prosecutor Sergeant Garry Wilson told the court that just after 10pm on Thursday October 17, police recorded Kapene driving a Subaru on South Belt at a speed of 154km/h. The posted speed limit on the sealed road is 50km/h.
When stopped by police, Kapene told them he had just been kicked out of home and "was having a bad day", Mr Wilson told the court.
After the summary was read in court, Kapene said he thought he was travelling at 120km/h.