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Old 09-05-2009, 04:28 AM   #32 (permalink)
rbattelle
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Join Date: Nov 2001
Location: Dayton, OH
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Quote:
Originally Posted by RHestand View Post
IMO, there are several advantages to this design. A couple that come to mind:
Exhaust heat rises for a very short, direct trip up to turbo/turbos.Quick spool, very little heat loss.
Compactness/versatility. W/O the exh. manifolds/pipes on each side of the engine, it allows for a much narrower engine pkge.
Good points. The high heat is good for the turbine, but I'm not sure about the effects of soakback with all that heat concentrated in the lifter valley. I guess it can't be too bad or they wouldn't have put it in service like this.

As for compactness, you still need a manifold on the outside of the vee. I thought those heads looked very wide with the intake manifold cast in.

Ryan
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