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It's the calm before the storm at ASB Baypark as jetsprint drivers make their final adjustments ahead this weekend's thundering show at the water-filled stadium.

The eagerly anticipated Round 2 of the ENZED V8 Jetsprint Championship series roars into life from 2-10pm tomorrow with 49 competitors, including six Australians, precisely navigating the newly formed stadium jetsprint track.

Gold Coast's Paul Gaston with his 412 Chev Hurricane jetsprint boat. Photo: Tracy Hardy

Speaking to SunLive at yesterday's practise run, Australian Paul Gaston says on first look the track is a much narrower course than other NZ locations, which is set to challenge drivers and thrill the crowds.

Two years in the making, the stadium-based event has seen 1800 cubic metres of dirt carved out and replaced with a 450metre temporary circuit with tight hair-pin bends and straights.

On the world-first track competitors will navigate the temporary circuit of twisting five-metre-wide channels, between 40 to 70cm deep. Each driver receives four training runs before entering the elimination stage.

And the Gold Coast resident, crossing the ditch for each New Zealand event, faces a frantic mental challenge to memorise the narrow course in quick time.

'There are between 25 and 30 turns we have to memorise per track,” says Paul.

'Usually it is two or three weeks before the race that the course outline is revealed. This time it is only today [Thursday].”

Despite the tight timeframe Paul is eager to get on the water and put on a show for the expectant crowd, with about 7000 tickets sold as of yesterday.

'It's pretty impressive; I think everyone has done a great job.

'It's a little bit narrower than normal so that will throw up some challenges so I think the crowd will be in for some special treats.”

And it is not just the crowd turning up for the big event with reigning Group A world champion Reg Smith dusting off his helmet and coming out of retirement.

Reg, out of the sport for the last year, admits it is hard to resist missing out on the ASB Baypark 'spectacle” and is giving the man-made track initial thumbs up.

Back behind the wheel for the first time, the two time national champion looked comfortably at home navigating through the series of twists and turns before emerging from beneath his helmet with a beaming grin.

With 25 years of racing behind him, Reg also has his eyes on returning to defend his title at this year's world championship in America.

'It's good to be back out there. To be part of this amazing event is a big part of it and second I need a bit of wheel time ahead of the world champs.

'Having it in an amphitheatre like this the noise is going to rising. They [the crowd] are going to hear it, they are going to see it, they are going to feel the noise.”