Group C Nissan Pulsar EXA Turbo ex-Christine Gibson & Glenn Seton Baskerville Historics 2022

Walk around and external footage of the works Nissan Australia Pulsar EXA Turbo.

The unique 1.5 litre turbo EXA Group C engine was locally developed and equipped with three-stage dry sump lubrication and stronger Cosworth pistons matched with the tough E15ET crankshaft and connecting rods. The intercooled turbocharger was plumbed into large diameter exhaust headers which led to a large dump pipe on the passenger side.

The five-speed gearbox was loaded with a set of tough Holinger race gears inside the standard gearbox casing. A fully locked diff fed power through a pair of custom-made drive-shafts to the front wheels, which like the rears were either 15 x 10-inch or 16 x 10-inch composite racing rims. Braking was via ventilated four-wheel discs clamped by multi-piston calipers along with stiffer suspension equipped with Tokico coil-over shocks and adjustable anti-roll bars.

Although the road-going Pulsar EXA was equipped with a moderately sized Garrett T02 turbocharger, Howard Marsden (head of Nissan Motorsport Australia) worked some magic with the car’s FIA homologation papers resulting in approval of the much larger T03 unit.

This pivotal change ensured a huge increase in engine power from the road car’s humble 103bhp to outputs reportedly in excess of 300bhp - or about three times the standard output! As you can imagine, there was considerable throttle lag waiting for such a big turbo on such a small engine to spool up to its 1.6 bar (23 psi) maximum boost pressure. And then all hell would break loose when it did, with the car’s locked diff, drive-shafts and front wheels overwhelmed by the task of getting it all onto the bitumen.

Information courtesy of Mark Oastler.
Full article;

https://www.shannons.com.au/club/news...