Originally Posted by Vargasturbotech
Its a surge tank, fed by an additional inline pump to maintain proper fuel pressure at all times. Why is this being touted as the newest thing on the planet because it is on a 335i? I built a setup almost identical to this but it was mounted under the car instead of in the trunk back in 1998 for one of our turbo watercooled VW projects. This is the natural progression of a fuel system as you make more and more HP, many platforms are already running setup's very similar to this. Not much RD needs to be done in my opinion. Just buy the parts and assemble it, its been proven to work for E85 across a range of platforms. With that being said, Kudos for being the first to do it in this platform. In my opinion it means you are on the bleeding edge of what needs to be done to achieve the next stage of high power levels for the N54.
+1. I have this setup on my 99' 1.8t big turbo car....