Petrolicious Pick: Lancia Delta S4 Group B

28 July, 2016

When a new video drops on the Petrolicious YouTube channel, we’re always excited to see what it’s all about. Recently we wrote an article on the Renault 5 Turbo, and asked the question of whether the Renault 5 Turbo was the ultimate ’80s hot hatch? The response from the readers was a loud one: no, nothing would beat the Lancia Delta. For John Campion, who immigrated to America in June 1984 — with only $26 in his back pocket — the Lancia range of vehicles was his choice of vehicle, too. 

After a few “lucky breaks” as he describes them, John was able to become a successful businessman in America. This meant, for his automotive passion, he was able to collect vehicles from his youth, mainly focusing on rally cars. And because the best rally cars that were ever produced were made in the ’80s, this is where his collection began. 

When you look at the specs of the Lancia Delta S4 Group B, they’re nothing short of phenomenal. The road-going Delta S4 weighed in at 1200kg, whereas the Group B version weighed in at a mere 890kg. This alone would aid in serious performance gains, however Lancia also wanted to work their magic on the engine. By pioneering twin-charge technology, Lancia was able to extract massive horsepower and response from their mid-mounted 1.7-litre engine. As turbochargers in the ’80s were nowhere near as sophisticated as they are now, if you wanted big power, it came at the expense of turbocharger lag.

Utilizing a supercharger with a bypass valve, Lancia was able to have almost instantaneous boost pressure at any rpm. Once the turbocharger was on full boost pressure, the bypass valve would cut the supercharger out of the equation. Official horsepower figures of the Group B version were 480hp, while some sources implied it was closer to 560hp. During testing, the Lancia’s engine managed to handle five bar (72psi) of boost pressure, with 1000hp as a result. 

We recommend turning the volume up for this one, so you can best enjoy the Group B sound! 

Lunch with … Rodger Anderson

At first, I wondered if I’d driven up the wrong driveway. The car in the garage was an early Mustang resplendent in royal blue with two broad gold stripes, which was not what I was expecting. I knew that Rodger Anderson, who made his name in Minis and a BMW 2002, was a Porsche man these days — the other end of the spectrum from American muscle. I had no idea of his affection for Detroit iron. It didn’t take long to discover just how passionate this former Saloon Car Champion is about cars, as long as they’re interesting.

Back from the brink – 1968 MGB GT

Auckland classic car enthusiast Kerry Bowman soon realised he had a massive job on his hands in restoring his classic 1968 MGB GT. When Kerry and his MGB first appeared in New Zealand Classic Car in March 2021, in “Behind The Garage Door”, the stripped-out shell had revealed some nasty surprises. Once the true extent of the hidden damage was discovered, the work would normally have been handed over to a professional fabricator. However, with the assistance of experts such as MG specialist restorer, Paul Walbran, Kerry has completed an impressive restoration and saved this car from the scrapheap.