Steed Speed manifold: the saga
Originally Posted by Scorpion,Jul 6 2007, 10:09 AM
Not impressed by how it looks as the runners taper down before the turbo flange.
Originally Posted by slimjim8201,Jul 6 2007, 09:58 AM
Thats actually a good thing. At the expense of a bit more restriction (backpressure felt by the engine) the tapering of the runners increases the gas velocity and will help to spin the turbine to a higher rotational velocity sooner. The result is lower spool times. It's hard to say for sure, but the decreased spool time may outweight the slight increase in boost pressure needed to achieve a specific HP target.
Originally Posted by Jimbo,Jun 28 2007, 05:16 PM
Interesting that the manifold has CNC marks on the top which clearly indicates the picture is of a one-off or early prototype. No way you can mass produce that thing in volume for ~$600 with all that machining.
Jimbo
Jimbo
I like the setup with the PWR unit. I am looking into the exact same thing. It requires no ambient air and I wonder if in the end it will prove worthwhile. I also wonder if it really does improve turbo spool since less piping is required?


