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Continuation from below:

The magic carb is a reality. Its just not in the sense you think. Nissan (along with others) has recently developed a 4cyl and a 6cyl engine that incorperates Direct Gasoline Injection. The reason you haven't seen this before is emmisions. As the combustion process improves NOx goes off the scale. Hence automotive companies have had to De-tune engines to reduce NOx output. With the recent advances in 3 way catalyzing elements they can now check the NOx. These engines are capable of close to the 70 mpg mark. The direct injection allows for the FINE atomization and higher combustion eff. Granted they also incorperate a lean burn technology computer that has modes to accomplish this. Basically the computer know when the engine can lean out and does it (low load etc). I don't know all the details. Its slated to be employed in the latest series of RB engines from Nissan. Hopefully we'll see this engine in the new Z.

Thanks
Andy
Fledgling BSME
 

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Re: Even I am leaving this one alone JN....n/c

> Continuation from below:

> The magic carb is a reality. Its just not in
> the sense you think. Nissan (along with
> others) has recently developed a 4cyl and a
> 6cyl engine that incorperates Direct
> Gasoline Injection. The reason you haven't
> seen this before is emmisions. As the
> combustion process improves NOx goes off the
> scale. Hence automotive companies have had
> to De-tune engines to reduce NOx output.
> With the recent advances in 3 way catalyzing
> elements they can now check the NOx. These
> engines are capable of close to the 70 mpg
> mark. The direct injection allows for the
> FINE atomization and higher combustion eff.
> Granted they also incorperate a lean
> burn technology computer that has
> modes to accomplish this. Basically the
> computer know when the engine can lean out
> and does it (low load etc). I don't know all
> the details. Its slated to be employed in
> the latest series of RB engines from Nissan.
> Hopefully we'll see this engine in the new
> Z.

> Thanks
> Andy
> Fledgling BSME
 
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