Quote Originally Posted by UrS6 View Post
Ditto. He and Marc Swanson at EFI Express are working on that right now so they know all about what needs to be done to the block.

Yup, We have a lot of experience in these motors, feel free to drop me an email haydn@motorsport-HT.com


We recently finished up a monster build on the RS6 lump. Nickasil bores, custom pistons and rods, custom CNC heads, custom intakes, custom exhaust, dual Borg Warner EFR's etc etc. We made 1000+ Lbtq and 850hp. Note this motor is built as a DD not a HP big number lump, hence we can hit 35psi of boost by 3K rpm = 1000lbtq by 3K too.

HP is limited by the stock cams, we are working on a custom cam setup for high boost.

Here is a video from our dyno testing, this is close to the final tune but not quite as I didn't get good video of the last runs.