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LZ20B & 710
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Excellence in Motorsport Oriented Engineering

At LCR we take a holistic approach to helping you achieve your motorsport dreams and goals. We endeavor to understand your vehicle as a whole and what you are wanting to achieve before beginning any project.

Specialising in, but not restricted to, Datsun/Nissan vehicles, we are constantly challenging existing boundaries developing higher levels of power, speed, handling and aesthetics. We apply the experience and wisdom, wrought from years of active participation and successes in most genres of motorsport, to each project we embrace.

We’re about helping you achieve your motorsport goals, what ever they are…


L6 3.4 240Z – The Green Hornet

L34 engine

It’s not hard to see that Greg Scott has a stirring passion for his 240Z. Theirs has been a long-term love affair. Fully committed to the spirit of the Z, Greg has been on a 17+ year journey of constantly improving all aspects including brakes and suspension while steadfastly resisting all temptations of different engines, forced induction or fuel injection for his beloved 240Z – widely known as the “The Green Hornet”.

A broken crankshaft in his ‘old faithful’ engine triggered a search for a worthy replacement, hopefully capable of carving a second or two from his lap times.

Greg had become jaded with the claimed performance BS from local engine builders servicing the racing scene in California, and as he started to explore his options it was looking like Kameari in Japan might be the go, but after a long delay in trying to get something underway there, a chance conversation on the ‘Hybrid Z’ web forum led Greg to contact Les Collins…

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BDKA racer

9000 rpm Nissan BDKA club racing engineFather and son Bruce and Grant Gow decided it was time to take their P510 club racer to the next level. They wanted a unique and different power plant and they knew where to go.

So began the project to develop a 300 bhp, 4-clyinder engine.

As with many of these custom build projects, it stopped and restarted several times but has culminated in a magnificent looking, high revving powerhouse that’s set to shake up the club racing scene in Victoria.

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Datsun LZ20 restored to glory

LZ20B ready to goLZ18 Nissan engines first came to Australia for the 1975 Southern Cross International Rally powering two works Datsun Violet 710s – in some countries known as the Datsun 160J.

The LZ is an interesting concoction from Nissan in that it was a custom-built twin cam, 4-valve head with a narrow valve angle, atop a modified L18B bottom end. Camshafts are driven by a chain of 7 gears and 3 sprockets with a short chain at the top, and all this hardware produced a characteristic rattle at low revs in the rally version, due to high lift valves but conservative timing. At first experience this rattle was rather disconcerting but became endearing to the many fans who followed the golden era of Australian rallying in which this engine played a staring role.

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Les Collins

Les Collins

The founding owner of Datrally Developments, Les has more than 45 years experience and many successes in most forms of motorsport competition to his credit.

A pioneering engineer and a tenacious project manager, he will take on most challenges.

Motivated by helping people of all ages achieve their Motorsport dreams, Les is committed to working with you to acieve your goals and aspirations.

He believes he can play a key role in your project by
• being a sounding board to help you get clear on what it is you are wanting to achieve,
• helping clarify exactly what has to be done and how,
• pinpointing efficiency and economy,
• staying focussed on what you’re wanting to achieve.

Take advantage of Les’ years of motorsport experience and achievement. He is available and uniquely qualified to assist – be it by taking hands-on control of your entire project, by phone consultation, or anything in between – you’ll find Les a clear thinker, a straight talker, and an enthusiastic ally.