Dale Smith wrote:

Paul ... & list

Thought you might be interested in this cutaway of the new
engine from the auto show pics.  Seems as if Mazda has tamed
the exhaust demon by going to a pipe within a pipe.  Any
comments?

Also, just speculating, but seems as if end housings may be
of an alloy (not cast iron) ... perhaps this is where they
get the 30 lb. weight reduction?

Don't think so on the alloy end housings. I think they 
are referring to the dual turbo's with the cast iron manifolds.

Nice picture. Looks pretty much the same as last year. Thanks.
Too bad they did not see fit to make it much lower with a wrapped
up tuned intake manifold and a lower water pump.

Speaking of three inch exhaust down pipes you can really see that here.
Scale it from the rotor bearing.

Looks like even the rotor housings have been extensively redesigned
and not just to eliminate the peripheral exhaust ports.

Those thin wall light weight rotors are examples of some fantastic
casting art.

Notice the length of the intake pipes despite the fact the
HP peak is at 9000 RPM. They are looking for torque lower down.

Paul Lamar
 
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