Scrutineering Tech Check ITM River Racing NZ Rules & regulations

Rules & Regulations

The rules & regulations for jet boat river racing in New Zealand are governed by the NZ Jet Boat River Racing Association which is an affiliate of the Union Internationale Motonautique (UIM),  a requirement for world championship status.

World Championship events rotate between four participating countries, NZ, USA, Canada & Mexico on a yearly basis.

Check out the NZJBRRA Rules & Guideline links below. 

Race Licence

Race Licence Application Forms are below.


Unlimited Class - Traditionally the domain of  large capacity normally aspirated V8's over 454ci or with turbo or supercharger (multiply ci x 1.4), today the fastest race boats are powered by repurposed helicopter gas turbine engines.

A Class - Any normally aspirated engine less than 454 ci (multiply ci x 1.4 for blown motors) Approx top speed - 120mph

CX Class - formula class designed to provide a level playing field for drivers - Speed up around 105mph

FX Class - formula class using the popular ZZ4 & ZZ6 (350 Chev) and ensuring driving skill is paramount.  Approx top speed 92mph

Club Class - entry level utilising your existing family boat with the addition of an approved bolt in rollcage, as allowed under the regulations. Speed governed to 65mph

ITM scrutineering principal sponsor tech check River Racing NZ

Tech Enquiries - Dwayne Terry


+64 27 315 3000



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