2007 Audi RS4 – Supercar Status – Eurotuner Magazine

29 Jan 2015 | Author: | Comments Off on 2007 Audi RS4 – Supercar Status – Eurotuner Magazine
Audi RS4

Matthew Collins builds a serious, supercharged Audi RS4

To the average Joe, the Audi RS4 goes unnoticed. It looks like an ordinary A4, with the exception of a few sportier accents and different badges. But Matthew Collins has built an example that deserves more recognition.

Undeniably, the RS4 is an amazing machine, but Matt took it a step further. The 4.2-liter V8 is supercharged to deliver awesome all-wheel drive power, while custom-tuned Ohlins suspension keeps the chassis composed at all times. Stopping the car from triple-digit speeds isn’t a problem, thanks to massive StopTech brakes.

Michelin tires offer endless grip on the street or at weekend track days. Yet the interior features European-spec seats and steering wheel plus an award-winning stereo system to provide the best of both worlds.

We were in the race to build the first supercharged RS4 in the US, began Max Gerson, co-owner of 3Zero3 Motorsports, the shop responsible for the majority of the build. Everybody has put big turbos on the 2.7T and 1.8T but once you supercharge an $80k car, you’re not modifying it. You’re building a supercar.

The road to building the ultimate RS4 had begun. Matt’s decision to buy one was simple. At the time, the RS4 was considered the elite among Audi’s lineup. However, many people were hesitant when Audi ditched the twin-turbo 2.7-liter V6 from the previous generation.

Yet Matt didn’t hesitate.

Audi RS4

He became close friends with staff at 3Zero3 who specialize in Audi, VW and Porsche. Together, they began the project by de-restricting the exhaust with high-flow Milltek downpipes and cats. A non-resonated system turned the RS4s growl into a lion’s roar.

From there, the factory Dynamic Ride Control system was ripped out for Stasis Engineering coilovers. It included Ohlins remote-reservoir dampers and custom-spec street springs.

This would enable the system to react quickly to driver input, while still retaining a comfortable ride.

Hotchkis front and rear sway bars enhanced the suspension by reducing body roll. Just like the coilovers, Matt wanted to be first to have a PES supercharger kit. PES was first to market and we wanted the kudos of having the first supercharged RS4, explained Max.

We also needed some hometown support since PES was a phone call away in Pennsylvania.

At the center of the kit was an Eaton M90 blower, commonly used as OEM hardware by Mercedes, Aston Martin and Jaguar for its instant power delivery throughout the powerband. For the RS4 application it provided a conservative 6psi of boost fed through an enormous liquid-to-air intercooler.

Audi RS4
Audi RS4
Audi RS4
Audi RS4

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