Monday, Oct 9 05:04pm
AUTHOR: Simon Chapman

3 Rotor Racing reveal world first Nos powered time attack Mazda RX-7

In what is believed to be a world first, Andy Duffin and his 3 Rotor Racing are set to contest this year’s World Time Attack Challenge with a nitrous oxide fed triple rotor Mazda RX-7


The team revealed a striking new livery designed by Jason Gibbs of Zoom Print and Design for their 2017 challenger at Sydney Motorsport Park featuring primary backing from Link ECU.


Speaking with, Duffin said they are certain their move to a Nos powered rotary is the first of its kind.


“No one’s done it before,” Duffin said.


“There’s no one we could talk to and say, ‘how do you make this work for a whole lap’. It’s been ground breaking.


“As far as we know… we can’t think of anyone stupid enough to try and do it for a whole lap.


“When it comes to do my lap I just turn the switch on and it does the rest. It’s a good time, it’s fast and sits you back in your seat. The thing works and it makes a massive amount of horsepower when it comes on strong.”


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The road to this year’s WTAC has been a bumpy one for Duffin and his team. He crashed earlier this year at Rod Millen’s annual Leadfoot Festival, which immediately put them on the back foot for their 2017 preparations.


The car suffered significant damage and meant much of the development they’d hoped to execute this year didn’t happen.


“We were a little bit compromised this year because we had that crash at Leadfoot, so our development got put on hold.


“We have been testing the parts we could test, which is nitrous delivery and a bit of driver training. We feel like we’ve definitely made some progress in those areas.”

Despite the setback, the team have executed upgrades to the front aerodynamic package, most of which were underbody aerodynamic efficiency developments.


Racer David Higgins of Kinetic Sim has been influential in the aerodynamic development of the car since Duffin first began competing in time attack.


With more testing and track time, He said there’s been a 100 per cent improvement in the cars ability with better front turn in and exit corner speed.


Duffin comes into this year’s WTAC confident he can put in a storming lap around the X km circuit. However, he knows his Open Class opposition will have stepped up their game for the annual event.


“The Aussie boys definitely step it up year on year on year. You see that in the lap time. Those boys at the top, everyone steps their game up. We think we’ll be there or thereabouts. I think on the day, if you can get that one good lap out of it, then you’re in it.”


“We know we were competitive last year, we just didn’t get that one good lap out of it. This year we are hoping we will—we’re sure we will actually.


“To be inside the top-five, that’s our goal, then we’ll see what happens.”


Duffin hasn’t got any intentions to start introducing wild aerodynamic packages. Instead, he said the team will sit down and figure out where the direction of the car will head in future events, but staying in Open Class is their immediate goal.


“There are a lot of improvements we know we can make and that’s pretty exciting. It’s fast, but we can make it way faster.”


Every World Time Attack Challenge is exciting for Duffin. Having grown up idolising the rotary engine and sound, he said he’s finally getting the chance to live his childhood dream and create others with his Hiroshima Screamer.


“That’s always been a cool difference of this car is the 20b scream. It’s something that I grew up wanting to build and finally got there.


“I just love the way it drives and sounds.”