1049RWHP Stealth Streeter

Photos by Scott Paddy

“The F6 was originally booked into 6Boost for a basic ‘cooler and injector upgrade,” begins Roland, the owner of one of the country’s toughest street-driven Typhoons. “Things just went a little silly from there.”

“The car has been through many different build stages to get where it is now,” he continues, “each of them different and having their own strengths and weaknesses. Our obsessive drive to make power with reliability has been the reason for the constant change, and the build has not been without its challenges and issues, but things are made much easier when using a workshop as professional and dedicated as 6Boost.

“A small build was the starting point for the F6, using a low mount 6Boost manifold, bigger injectors, Xforce exhaust and a slightly larger turbo to get the car making approximately 600hp at the rear wheels. In the end this build was really streetable, but it lacked the outright power I was chasing, so we decided to get serious with the F6 and build what was to become known as STEALTH.”

Roland’s goal was to become the fastest and most powerful bolt-on-only F6 around so a shopping list of only the best was written up and the guys at 6Boost got to work. The switch was made to a high mount manifold with a T51 perched on top providing 30psi of boost, blown through a completely new inlet path provided by Process West.

In this guise the F6 made a respectable 740hp and ran a 10.7@135mph in full street trim but after a mysterious issue of oil and water mixing, it was time for a freshen up. Wanting more the decision was made to up the ante a bit more, turning to Atomic Performance for one of their built Barras in the form of the Atomic 698.

“Once the engine was ready,” Roland tells us, “6Boost installed and tuned it using the same turbo and cooler set up as we had previously had on the car, resulting in well over 800hp being unleashed at the rear wheels.” At this stage the mystery problem presented itself again, turning out to be no more than a small split in the factory oil cooler.

“After this discovery,” says Roland, “we decided we would step up the build another gear, or five.” Atomic were given the task of preparing the Barra internally yet again, this time building it to 998 specs. Hanging off the side was a new 6Boost manifold and a larger GTX45 turbocharger, kept under control by twin Turbosmart wastegate.

“The standard ZF box would not stand up to the power we had coming,” continues Roland. “We decided to order a T400 transmission complete with a 6200rpm converter from Protrans, with a Hardy Spicer tail shaft fitted behind it. We upgraded the injectors to ID2000s and replaced the Process West kit with a Plazmaman race ‘cooler and Hypertune plenum.

“Jamie from Forced Performance continued to be the man given the task of tuning the F6, a task which has never been easy using a Flash Tuner. All the same, he was able to get for us a figure of 1049hp at the rear wheels on 35psi of boost. Pretty good considering this was through a big converter and a T400 as well as the factory ECU fighting us all the way!”

To avoid any further stress caused by the factory ECU, Roland made the decision to install a full suite of electronics from Haltech including a Platinum series ECU and Racepak dash.

This is basically how the F6 sits now, an absolute animal on the street and yet still able to blend in with the sea of other Falcons on the road without drawing any unwanted attention. Roland truly is a master of stealth and if you don’t take the warning offered by his Falcon’s numberplates, you will soon find out why.