A man whose driving in an illegal street race contributed to the deaths of four people has been sentenced to 12 months home detention.

Dylan Cossey, 21, was also ordered to complete 400 hours community service and was disqualified from driving for seven years.

Cossey, the driver of the other car involved in the race, was found guilty of manslaughter in February for his part in the crash.

Stephen John Jones - Cossey's passenger who was filming at the time of the crash on the outskirts of Hamilton - was found not guilty of manslaughter after the week-long trial in the High Court at Hamilton.

Both men, aged 20, were found guilty of failing to stop and Jones of attempting to pervert the course of justice after he later edited incriminating video he took just moments before the crash. Jones will be sentenced at a later date.

Hamilton woman Hannah Leis Strickett-Craze, 24, Paul De Silva, 20, and Lance Robinson, 28, both of Te Awamutu, and Jason McCormick Ross, 19, of Stratford died in the crash, an illegal street race. A van driver who was seriously injured has name suppression.

The crash happened on Ohaupo Rd, at the intersection of Ingram Rd, outside Hamilton Airport, on June 24, 2016, when Robinson lost control of his northbound Nissan Skyline and collided with the southbound van.

The two groups did not know other but began racing as they drove north outside of Te Awamutu.

Witnesses estimated the two cars going at speeds in excess of 150kmh when Robinson's Skyline fish-tailed as he tried to pass Cossey, before smashing into the oncoming Toyota Hi-Ace van.

Strickett-Craze was a mother to a young son, Levi, and De Silva was also a father to little boy, Cosmo, with Narissa Ryan.