Fitting a VR6 Vw engine into a 911 chassis was no small task. With our goals to make well over 1000whp, we had to design an intake manifold that fit under the rear decklid and flow enough air to make the power we had in mind.
We chose to use a Skunk2 plenum as a starting point and design a lower manifold to bolt to the inline six style head. We designed this manifold to be modular. What we mean by this, is we will be offering this setup in 12 different configurations. The plenum will come with a center feed option and a side feed option. The center feed plenum from Skunk2 has a large volume plenum starting at 5 liters. In our 1200whp VR6 we used the center feed plenum and the Skunk2 2 liter spacer, giving a total intake plenum volume of 7 liters. The side feed is best fitted for transverse drivetrain configurations such found in the Vw Golf, Audi TT and Audi A3 platforms and has a volume of 3.5 liters. With this swap becoming ever so popular in the Audi S4 chassis the side feed or the center plenum could be used.