Exhaust/inlet manifold with VNT 20

[BGA]

I am building a mTDI with GT2052V turbo and VE pump with 12mm head.
I found a gasser exhaust manifold where number 1 and 4 cylinder are connected to one port and 2 and 3 to the other. Has this manifold any advantage over the 1.6 TD (4 to one port) manifold? What inlet manifold is suggested for this mTDI spec? 130 PD?

          http://picasaweb.google.se/bogunnar.andersson/Manifold02#[img]

[lbreton]

I would say that manifold would be a disadvantage unless you have a lot of space to bolt on a longer 2-1 collector to match up to your turbo housing inlet.  With that short spacer block I see in the pic, there is probably going to be a lot of turbulence pulling it together with such sharp angles. That would be a loss in performance.

[Whitbread]

If you're going through all that trouble, time, and money, don't skimp out on a manifold now. If you're got the room and skills, build a tubular one. The 4-1 stainless tubular header I built for my car cost less than $150 including the laser cut flanges. If that's not possible, just use the 1.6td manifold. The split runner gasser one is designed for a NA gas applications, not TD's. Take a look at how long the transition pipe is from where it goes to 2 finally down to 1 pipe is. It's that long for a reason.

Nice to see you over here too synchro  :wink:. Your sig is rather easy to spot haha.