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      06-19-2012, 03:08 PM   #36
jippii ensio
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Drives: 335i
Join Date: Feb 2009
Location: On the road

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Quote:
Originally Posted by CSL335i View Post
We are also working on new twins with custom made manifold for my n54. At this moment, not for resale purposes, just as a hobby.
Mostly we are using Garett parts, but they will be a kind of hybrid turbos with some "twin-scroll" effects.
BW EFR 7670 was my first choice to upgrade my n54 with twin-scroll turbine housing turbo and custom manifold, but BW was unable to delivery the proper twin-scroll turbine house for EFR 7670. I guess, that BW still cannot delivery it. So we switched and decided to go with two new single-scroll turbos. One of them is completly ready, the other is under machining.

On the other hand i think that among many things, the engine should be rebuilt heavily, when we are talking about 500-650+HP. It is not enough to use forged rods and pistons, but the heads should be ported properly and mostly the open-deck designed cylinders should be strenghtened as well. Many-many task, which i will do in my current project.

Laszlo
Sounds like a proper build. Which turbos are you going with?
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